Biggest changeFor the Years Ended December 31, 2022 vs 2021 Change 2022 2021 Amount % Revenue Sirius XM: Subscriber revenue $ 6,370 $ 6,084 $ 286 5 % Advertising revenue 196 188 8 4 % Equipment revenue 189 201 (12) (6) % Other revenue 150 151 (1) (1) % Total Sirius XM revenue 6,905 6,624 281 4 % Pandora and Off-platform: Subscriber revenue 522 530 (8) (2) % Advertising revenue 1,576 1,542 34 2 % Total Pandora and Off-platform revenue 2,098 2,072 26 1 % Total consolidated revenue 9,003 8,696 307 4 % Cost of services Sirius XM: Revenue share and royalties 1,552 1,532 20 1 % Programming and content 546 511 35 7 % Customer service and billing 415 415 — — % Transmission 158 159 (1) (1) % Cost of equipment 13 18 (5) (28) % Total Sirius XM cost of services 2,684 2,635 49 2 % Pandora and Off-platform: Revenue share and royalties 1,250 1,140 110 10 % Programming and content 58 48 10 21 % Customer service and billing 82 86 (4) (5) % Transmission 56 59 (3) (5) % Total Pandora and Off-platform cost of services 1,446 1,333 113 8 % Total consolidated cost of services 4,130 3,968 162 4 % Subscriber acquisition costs 352 325 27 8 % Sales and marketing 1,075 1,056 19 2 % Engineering, design and development 285 265 20 8 % General and administrative 525 514 11 2 % Depreciation and amortization 536 533 3 1 % Impairment, restructuring and acquisition costs 64 20 44 nm Total operating expenses 6,967 6,681 286 4 % Income from operations 2,036 2,015 21 1 % Other (expense) income: Interest expense (422) (415) (7) (2) % Loss on extinguishment of debt — (83) 83 nm Other (expense) income (9) 9 (18) nm Total other expense (431) (489) 58 12 % Income before income taxes 1,605 1,526 79 5 % Income tax expense (392) (212) (180) (85) % Net income $ 1,213 $ 1,314 $ (101) (8) % nm - not meaningful 38 Table of Contents Sirius XM Revenue Sirius XM Subscriber Revenue includes fees charged for self-pay and paid promotional subscriptions, U.S.
Biggest changeFor the Years Ended December 31, 2023 vs 2022 Change 2023 2022 Amount % Revenue Sirius XM: Subscriber revenue $ 6,342 $ 6,370 $ (28) — % Advertising revenue 169 196 (27) (14) % Equipment revenue 193 189 4 2 % Other revenue 136 150 (14) (9) % Total Sirius XM revenue 6,840 6,905 (65) (1) % Pandora and Off-platform: Subscriber revenue 524 522 2 — % Advertising revenue 1,589 1,576 13 1 % Total Pandora and Off-platform revenue 2,113 2,098 15 1 % Total consolidated revenue 8,953 9,003 (50) (1) % Cost of services Sirius XM: Revenue share and royalties 1,603 1,552 51 3 % Programming and content 549 546 3 1 % Customer service and billing 393 415 (22) (5) % Transmission 171 158 13 8 % Cost of equipment 14 13 1 8 % Total Sirius XM cost of services 2,730 2,684 46 2 % Pandora and Off-platform: Revenue share and royalties 1,292 1,250 42 3 % Programming and content 69 58 11 19 % Customer service and billing 83 82 1 1 % Transmission 35 56 (21) (38) % Total Pandora and Off-platform cost of services 1,479 1,446 33 2 % Total consolidated cost of services 4,209 4,130 79 2 % Subscriber acquisition costs 359 352 7 2 % Sales and marketing 931 1,075 (144) (13) % Engineering, design and development 322 285 37 13 % General and administrative 550 525 25 5 % Depreciation and amortization 554 536 18 3 % Impairment, restructuring and acquisition costs 82 64 18 28 % Total operating expenses 7,007 6,967 40 1 % Income from operations 1,946 2,036 (90) (4) % Other (expense) income: Interest expense (423) (422) 1 — % Other (expense) income (5) (9) (4) (44) % Total other expense (428) (431) (3) (1) % Income before income taxes 1,518 1,605 (87) (5) % Income tax expense (260) (392) (132) (34) % Net income $ 1,258 $ 1,213 $ 45 4 % 41 Table of Contents Sirius XM Revenue Sirius XM Subscriber Revenue includes fees charged for self-pay and paid promotional subscriptions, U.S.
We expect our Pandora and Off-platform revenue share and royalties to increase based on a variety of music-related factors, including higher royalty rates under the statutory webcasting license, and additional costs associated with our podcast distribution agreements. Pandora and Off-platform Programming and Content includes costs to produce live listener events and promote content.
We expect our Pandora and Off-platform revenue share and royalties to increase based on a variety of music-related factors, including higher royalty rates under the statutory webcasting license, and additional costs associated with our podcast distribution agreements. Pandora and Off-platform Programming and Content includes costs to produce, license and promote podcast content and live listener events.
Cash Flows Used in Investing Activities Cash flows used in investing activities in the year ended December 31, 2022 were primarily due to spending for capitalized software and hardware, to construct satellites, and acquisitions for total cash consideration of $136.
Cash flows used in investing activities in the year ended December 31, 2022 were primarily due to spending for capitalized software and hardware, to construct satellites, and acquisitions for total cash consideration of $136.
We expect our Pandora and Off-platform customer service and billing costs to decrease with declines in our subscriber base. Pandora and Off-platform Transmission includes costs associated with content streaming, maintaining our streaming radio and on-demand subscription services and creating and serving advertisements through third-party ad servers.
We expect our Pandora and Off-platform customer service and billing costs to decrease with declines in the Pandora subscriber base. Pandora and Off-platform Transmission includes costs associated with content streaming, maintaining our streaming radio and on-demand subscription services and creating and serving advertisements through third-party ad servers.
Our largest source of cash provided by operating activities is cash generated by subscription and subscription-related revenues. We also generate cash from the sale of advertising through our Pandora business, advertising on certain non-music channels on Sirius XM and the sale of satellite radios, components and accessories.
Our largest source of cash provided by operating activities is cash generated by subscription and subscription-related revenues. We also generate cash from the sale of advertising through our Pandora and Off-platform business, advertising on certain non-music channels on Sirius XM and the sale of satellite radios, components and accessories.
As of December 31, 2022, the intangible assets not subject to amortization for each of our consolidated reportable segments were as follows (amounts in millions): Goodwill FCC Licenses Trademarks Total Sirius XM $ 2,290 $ 2,084 $ 250 $ 4,624 Pandora and Off-platform 959 — 312 1,271 Consolidated $ 3,249 $ 2,084 $ 562 $ 5,895 49 Table of Contents We perform our annual assessment of the recoverability of our goodwill and other nonamortizable intangible assets in the fourth quarter each year, or more frequently if events and circumstances indicate impairment may have occurred.
As of December 31, 2023, the intangible assets not subject to amortization for each of our consolidated reportable segments were as follows (amounts in millions): 52 Table of Contents Goodwill FCC Licenses Trademarks Total Sirius XM $ 2,290 $ 2,084 $ 250 $ 4,624 Pandora and Off-platform 959 — 312 1,271 Consolidated $ 3,249 $ 2,084 $ 562 $ 5,895 We perform our annual assessment of the recoverability of our goodwill and other nonamortizable intangible assets in the fourth quarter each year, or more frequently if events and circumstances indicate impairment may have occurred.
We also derive subscription revenue from our Pandora Plus and Pandora Premium subscribers. 36 Table of Contents We also sell advertising on other audio platforms and in widely distributed podcasts, which we consider to be off-platform services.
We also derive subscription revenue from our Pandora Plus and Pandora Premium subscribers. 39 Table of Contents We also sell advertising on other audio platforms and in widely distributed podcasts, which we consider to be off-platform services.
If the tax position is not more likely than not to be sustained, the gross amount of the unrecognized tax 50 Table of Contents position will not be recorded in the financial statements but will be shown in tabular format within the uncertain income tax positions.
If the tax position is not more likely than not to be sustained, the gross amount of the unrecognized tax 53 Table of Contents position will not be recorded in the financial statements but will be shown in tabular format within the uncertain income tax positions.
Shares of common stock may be purchased from time to time on the open market and in privately negotiated transactions, including in accelerated stock repurchase transactions and transactions with Liberty Media and its affiliates. We intend to fund the additional repurchases through a combination of cash on hand, cash generated by operations and future borrowings.
Shares of common stock may be purchased from time to time on the open market and in privately negotiated transactions, including in accelerated stock repurchase transactions and transactions with Liberty Media and its affiliates. We intend to fund the additional repurchases through a combination of cash on hand, cash generated by operations and future 51 Table of Contents borrowings.
Adjusted EBITDA is a Non-GAAP financial measure that excludes or adjusts for the impact of other expense (income), loss on extinguishment of debt, impairment, restructuring and acquisition costs, other non-cash charges such as share-based payment expense, and legal settlements and reserves (if applicable).
Adjusted EBITDA is a Non-GAAP financial measure that excludes or adjusts for the impact of other expense (income), loss on extinguishment of debt, impairment, restructuring and acquisition costs, costs associated with the Transactions, other non-cash charges such as share-based payment expense, and legal settlements and reserves (if applicable).
Pandora enables listeners to create personalized stations and playlists, discover new content, hear artist- and expert-curated playlists, podcasts and select Sirius XM content as well as search and play songs and albums on-demand. Pandora is available as (1) an ad-supported radio service, (2) a radio subscription service (Pandora Plus) and (3) an on-demand subscription service (Pandora Premium).
Pandora enables listeners to create personalized stations and playlists, discover new content, hear artist- and expert-curated playlists, podcasts as well as search and play songs and albums on-demand. Pandora is available as (1) an ad-supported radio service, (2) a radio subscription service (Pandora Plus) and (3) an on-demand subscription service (Pandora Premium).
RPM - is calculated by dividing advertising revenue, excluding AdsWizz and other off-platform revenue, by the number of thousands of listener hours on our Pandora advertising-based service. 54 Table of Contents
RPM - is calculated by dividing advertising revenue, excluding AdsWizz and other off-platform revenue, by the number of thousands of listener hours on our Pandora advertising-based service. 57 Table of Contents
Cash flows used in financing activities in the year ended December 31, 2022 were primarily due to the payment of cash dividends of $1,339, the purchase and retirement of shares of our common stock under our repurchase program for $647, and payment of $114 for taxes in lieu of shares issued for share-based compensation, partially offset by net borrowings under our Credit Facility of $80 and an amendment to our Credit Facility to incorporate an Incremental Term Loan borrowing of $500 ($499 net of costs) which matures on April 11, 2024.
Cash flows used in financing activities in the year ended December 31, 2022 were primarily due to repayments under our Credit Facility of $2,220, the payment of cash dividends of $1,339, the purchase and retirement of shares of our common stock under our repurchase program for $647, and payment of $114 for taxes in lieu of shares issued for share-based compensation, partially offset by borrowings under our Credit Facility of $2,300 and an amendment to our Credit Facility to incorporate an Incremental Term Loan borrowing of $500 ($499 net of costs) which matures on April 11, 2024.
We operate two in-orbit Sirius satellites, FM-5 and FM-6, which launched in 2009 and 2013, respectively, and estimate they will operate effectively through the end of their depreciable lives in 2024 and 2028, respectively. We currently operate four in-orbit XM satellites, XM-3, XM-4, XM-5 and SXM-8.
We operate two in-orbit Sirius satellites, FM-5 and FM-6, which launched in 2009 and 2013, respectively, and estimate they will operate effectively through the end of their depreciable lives in 2024 and 2028, respectively. We currently operate three in-orbit XM satellites, XM-3, XM-5 and SXM-8.
The Company considers whether there are any negative macroeconomic conditions, industry specific conditions, market changes, increased competition, increased costs in doing business, management challenges, the legal environments and how these factors might impact company specific performance in future periods.
We consider whether there are any negative macroeconomic conditions, industry specific conditions, market changes, increased competition, increased costs in doing business, management challenges, the legal environments and how these factors might impact company specific performance in future periods.
As of December 31, 2022, the gross liability for income taxes associated with uncertain tax positions was $198. Glossary Monthly active users - the number of distinct registered users on the Pandora services, including subscribers, which have consumed content within the trailing 30 days to the end of the final calendar month of the period.
As of December 31, 2023, the gross liability for income taxes associated with uncertain tax positions was $171. Glossary Monthly active users - the number of distinct registered users on the Pandora services, including subscribers, which have consumed content within the trailing 30 days to the end of the final calendar month of the period.
We also believe the exclusion of the legal settlements and reserves, impairment, restructuring and acquisition related costs, and loss on extinguishment of debt, to the extent they occur during the period, is useful as they are significant expenses not incurred as part of our normal operations for the period. 51 Table of Contents Adjusted EBITDA has certain limitations in that it does not take into account the impact to our consolidated statements of comprehensive income of certain expenses, including share-based payment expense.
We also believe the exclusion of the legal settlements and reserves, impairment, restructuring and acquisition related costs, to the extent they occur during the period, is useful as they are significant expenses not incurred as part of our normal operations for the period. 54 Table of Contents Adjusted EBITDA has certain limitations in that it does not take into account the impact to our consolidated statements of comprehensive income of certain expenses, including share-based payment expense.
We intend to continue to offer subsidies and other incentives to induce OEMs to include our technology in their vehicles. 41 Table of Contents Sales and Marketing includes costs for marketing, advertising, media and production, including promotional events and sponsorships; cooperative and artist marketing; and personnel related costs including salaries, commissions, and sales support.
We intend to continue to offer subsidies and other incentives to induce OEMs to include our technology in their vehicles. Sales and Marketing includes costs for marketing, advertising, media and production, including promotional events and sponsorships; cooperative and artist marketing; and personnel related costs including salaries, commissions, and sales support.
As of December 31, 2022, we had a valuation allowance of $113 relating to deferred tax assets that are not more likely than not to be realized due to the timing of certain state net operating loss limitations and acquired net operating losses that were not likely to be utilized.
As of December 31, 2023, we had a valuation allowance of $88 relating to deferred tax assets that are not more likely than not to be realized due to the timing of certain state net operating loss limitations and acquired net operating losses that were not likely to be utilized.
We expect engineering, design and development expenses to increase in future periods as we continue to develop our infrastructure, products and services. General and Administrative primarily consists of compensation and related costs for personnel and facilities, and include costs related to our finance, legal, human resources and information technologies departments.
We expect engineering, design and development expenses to decrease in future periods as we capitalize more investments as we continue to develop our infrastructure, products and services. General and Administrative primarily consists of compensation and related costs for personnel and facilities, and include costs related to our finance, legal, human resources and information technologies departments.
We spent $247 and $238 on capitalized software and hardware as well as $122 and $93 to construct satellites during the years ended December 31, 2022 and 2021, respectively. 47 Table of Contents Cash Flows Used in Financing Activities Cash flows used in financing activities consists of the issuance and repayment of long-term debt, the purchase of common stock under our share repurchase program, the payment of cash dividends and taxes paid in lieu of shares issued for stock-based compensation.
We spent $297 and $247 on capitalized software and hardware as well as $285 and $122 to construct satellites during the years ended December 31, 2023 and 2022, respectively. 50 Table of Contents Cash Flows Used in Financing Activities Cash flows used in financing activities consists of the issuance and repayment of long-term debt, the purchase of common stock under our share repurchase program, the payment of cash dividends and taxes paid in lieu of shares issued for stock-based compensation.
Refer to our Form 10-K for the year ended December 31, 2021 filed with the SEC on February 1, 2022 for our Non-GAAP financial and operating performance measures for the year ended December 31, 2021 compared with the year ended December 31, 2020.
Refer to our Form 10-K for the year ended December 31, 2022 filed with the SEC on February 2, 2023 for our Non GAAP financial and operating performance measures for the year ended December 31, 2022 compared with the year ended December 31, 2021.
In evaluating goodwill on a qualitative basis, the Company reviews the business performance of each reporting unit and evaluates other relevant factors as identified in the relevant accounting guidance to determine whether it is more likely than not that an indicated impairment exists for any of our reporting units.
In evaluating goodwill on a qualitative basis, we review the business performance of each reporting unit and evaluate other relevant factors as identified in the relevant accounting guidance to determine whether it is more likely than not that an indicated impairment exists for any of our reporting units.
Debt Covenants The indentures governing Sirius XM's senior notes and Pandora's convertible notes and the agreement governing the Sirius XM Credit Facility include restrictive covenants. As of December 31, 2022, we were in compliance with such covenants.
Debt Covenants The indentures governing Sirius XM's senior notes and the agreement governing the Sirius XM Credit Facility include restrictive covenants. As of December 31, 2023, we were in compliance with such covenants.
We also derive revenue from advertising on select non-music channels, which is sold under the SXM Media brand, direct sales of our satellite radios and accessories, and other ancillary services. As of December 31, 2022, our Sirius XM business had approximately 34.3 million subscribers. In addition to our audio entertainment businesses, we provide connected vehicle services to several automakers.
We also derive revenue from advertising on select non-music channels, which is sold under the SiriusXM Media brand, direct sales of our satellite radios and accessories, and other ancillary services. As of December 31, 2023, our Sirius XM business had approximately 33.9 million subscribers. In addition to our audio entertainment businesses, we provide connected vehicle services to several automakers.
As part of the analysis, the Company also considers fair value determinations for certain reporting units that have been made at various points throughout the current and prior year for other purposes. If based on the qualitative analysis it is more likely than not that an impairment exists, the Company performs the quantitative impairment test. Useful Life of Broadcast/Transmission System.
As part of the analysis, we also consider fair value determinations for our reporting units that have been made at various points throughout the current and prior year for other purposes. If based on the qualitative analysis it is more likely than not that an impairment exists, we perform the quantitative impairment test. Useful Life of Broadcast/Transmission System.
Refer to our Form 10-K for the year ended December 31, 2021 filed with the SEC on February 1, 2022 for our cash flows for the year ended December 31, 2021 compared with the year ended December 31, 2020.
Refer to our Form 10-K for the year ended December 31, 2022 filed with the SEC on February 2, 2023 for our cash flows for the year ended December 31, 2022 compared with the year ended December 31, 2021.
Pandora and Off-platform Revenue Share and Royalties includes licensing fees paid for streaming music or other content to our subscribers and listeners as well as revenue share paid to third party ad servers.
Pandora and Off-platform Revenue Share and Royalties includes licensing fees paid for streaming music or other content related to podcasts as well as revenue share paid to third party ad servers.
During 2022, we recorded an impairment of $43 associated with terminated software projects, $16 related to certain vacated office spaces, $5 in connection with furniture and equipment located at the impaired office spaces, and $6 related to personnel severance as well as acquisition related costs of $2; partially offset by $8 from the gain on sale of real estate.
During 2022, we recorded an impairment of $43 associated with terminated software projects, $16 related to certain vacated office spaces, $5 in connection with furniture and equipment located at the impaired office spaces, and $6 related to personnel severance as well as acquisition related costs of $2; partially offset by $8 from the gain on the sale of real estate. 45 Table of Contents Other Income (Expense) Interest Expense includes interest on outstanding debt.
Impairment, Restructuring and Acquisition Costs represents impairment charges, net of insurance recoveries, associated with the carrying amount of an asset exceeding the asset's fair value, restructuring expenses associated with the abandonment of certain leased office spaces and acquisition costs. For the years ended December 31, 2022 and 2021, impairment, restructuring, and acquisition costs were $64 and $20, respectively.
Impairment, Restructuring and Acquisition Costs represents impairment charges, associated with the carrying amount of an asset exceeding the asset's fair value, restructuring expenses associated with the abandonment of certain leased office spaces, acquisition costs and costs associated with the Transactions. For the years ended December 31, 2023 and 2022, impairment, restructuring, and acquisition costs were $82 and $64, respectively.
For the years ended December 31, 2022 and 2021, other (expense) income was $(9) and $9, respectively. Other expense for the year ended December 31, 2022, was primarily driven by trading losses associated with the investments held for our Deferred Compensation Plan.
For the years ended December 31, 2023 and 2022, other (expense) income was $(5) and $(9), respectively. Other expense for the year ended December 31, 2023, was primarily driven by losses associated with certain investments, partially offset by trading gains associated with the investments held for our Deferred Compensation Plan.
Our effective tax rate of 13.9% for the year ended December 31, 2021 was primarily impacted by federal and state income tax expense, partially offset by settlements with various states as well as a benefit related to research and development and certain other credits. 43 Table of Contents Key Financial and Operating Performance Metrics In this section, we present certain financial performance measures, some of which are presented as Non-GAAP items, which include free cash flow and adjusted EBITDA.
Our effective tax rate of 24.4% for the year ended December 31, 2022 was primarily impacted by federal and state income tax expense as well as changes in state valuation allowance, partially offset by a benefit related to research and development and certain other credits. 46 Table of Contents Key Financial and Operating Performance Metrics In this section, we present certain financial performance measures, some of which are presented as Non-GAAP items, which include free cash flow and adjusted EBITDA.
For the years ended December 31, 2022 and 2021, engineering, design and development expenses were $285 and $265, respectively, an increase of 8%, or $20, and increased as a percentage of total revenue. The increase was driven primarily by higher cloud hosting costs as well as higher personnel-related costs.
For the years ended December 31, 2023 and 2022, engineering, design and development expenses were $322 and $285, respectively, an increase of 13%, or $37, and increased as a percentage of total revenue. The increase was driven primarily by higher cloud hosting and personnel-related costs.
Refer to our Form 10-K for the year ended December 31, 2021 filed with the SEC on February 1, 2022 for our results of operations for the year ended December 31, 2021 compared with the year ended December 31, 2020.
Refer to our Form 10-K for the year ended December 31, 2022 filed with the SEC on February 2, 2023 for our results of operation for the year ended December 31, 2022 compared with the year ended December 31, 2021.
We monitor the operating condition of our in-orbit satellites and if events or circumstances indicate that the depreciable lives of our in-orbit satellites have changed, we will modify the depreciable life accordingly. If we were to revise our estimates, our depreciation expense would change. Income Taxes.
Our in-orbit satellites may experience component failures which could adversely affect their useful lives. We monitor the operating condition of our in-orbit satellites and if events or circumstances indicate that the depreciable lives of our in-orbit satellites have changed, we will modify the depreciable life accordingly. If we were to revise our estimates, our depreciation expense would change. Income Taxes.
We exclude from free cash flow certain items that do not relate to the on-going performance of our business, such as cash flows related to acquisitions, strategic and short-term investments, net loan activity with related parties and other equity investees, and proceeds from the sale of real estate.
We exclude from free cash flow certain items that do not relate to the on-going performance of our business, such as cash flows related to acquisitions, strategic and short-term investments, including tax efficient investments in clean energy as well as net loan activity with related parties and other equity investees.
We expect our Sirius XM customer service and billing expenses to remain relatively flat. Sirius XM Transmission consists of costs associated with the operation and maintenance of our terrestrial repeater networks; satellites; satellite telemetry, tracking and control systems; satellite uplink facilities; studios; and delivery of our Internet and 360L streaming and connected vehicle services.
Sirius XM Transmission consists of costs associated with the operation and maintenance of our terrestrial repeater networks; satellites; satellite telemetry, tracking and control systems; satellite uplink facilities; studios; and delivery of our Internet and 360L streaming and connected vehicle services.
EBITDA is defined as net income before interest expense, income tax expense and depreciation and amortization. Adjusted EBITDA excludes or adjusts for the impact of other expense (income), loss on extinguishment of debt, impairment, restructuring and acquisition costs, other non-cash charges such as share-based payment expense, and legal settlements and reserves (if applicable).
Adjusted EBITDA excludes or adjusts for the impact of other expense (income), loss on extinguishment of debt, impairment, restructuring and acquisition costs, costs associated with the Transactions, other non-cash charges such as share-based payment expense, and legal settlements and reserves (if applicable).
Marketing costs include expenses related to direct mail, outbound telemarketing, email communications, social media, television and performance media. For the years ended December 31, 2022 and 2021, sales and marketing expenses were $1,075 and $1,056, respectively, an increase of 2%, or $19, but decreased as a percentage of total revenue.
Marketing costs include expenses related to direct mail, outbound telemarketing, email communications, social media, television and performance media. For the years ended December 31, 2023 and 2022, sales and marketing expenses were $931 and $1,075, respectively, a decrease of 13%, or $144, and decreased as a percentage of total revenue.
We expect our Pandora and Off-platform programming and content costs to increase as we offer additional programming and produce live listener events and promotions. Pandora and Off-platform Customer Service and Billing includes transaction fees on subscription purchases through mobile app stores and bad debt expense.
We expect our Pandora and Off-platform programming and content costs to remain flat as lower personnel-related costs are offset by additional programming and live listener events and promotions. Pandora and Off-platform Customer Service and Billing includes transaction fees on subscription purchases through mobile app stores and bad debt expense.
Free cash flow is calculated as follows: For the Years Ended December 31, 2022 2021 Cash Flow information Net cash provided by operating activities $ 1,976 $ 1,998 Net cash used in investing activities (548) (200) Net cash used in financing activities (1,562) (1,682) Free Cash Flow Net cash provided by operating activities 1,976 1,998 Additions to property and equipment (426) (388) Sale (purchases) of other investments 1 (4) Satellite insurance recoveries — 225 Free cash flow $ 1,551 $ 1,831 ARPU - Sirius XM ARPU is derived from total earned subscriber revenue (excluding revenue associated with our connected vehicle services) and advertising revenue, divided by the number of months in the period, divided by the daily weighted average number of subscribers for the period.
Free cash flow is calculated as follows: For the Years Ended December 31, 2023 2022 Cash Flow information Net cash provided by operating activities $ 1,850 $ 1,976 Net cash used in investing activities (686) (548) Net cash used in financing activities (1,005) (1,562) Free Cash Flow Net cash provided by operating activities 1,850 1,976 Additions to property and equipment (650) (426) Sales of other investments 3 1 Free cash flow $ 1,203 $ 1,551 ARPU - Sirius XM ARPU is derived from total earned subscriber revenue (excluding revenue associated with our connected vehicle services) and advertising revenue, divided by the number of months in the period, divided by the daily weighted average number of subscribers for the period.
Our effective tax rate of 24.4% for the year ended December 31, 2022 was primarily impacted by federal and state income tax expense as well as changes in state valuation allowance, partially offset by a benefit related to research and development and certain other credits.
Our effective tax rate of 17.1% for the year ended December 31, 2023 was primarily driven by federal and state income tax expense, partially offset by the benefits related to research and development and certain other credits, as well as a release in state valuation allowance.
We expect our general and administrative expenses to remain relatively flat. Depreciation and Amortization represents the recognition in earnings of the cost of assets used in operations, including our satellite constellations, property, equipment and intangible assets, over their estimated service lives.
Depreciation and Amortization represents the recognition in earnings of the cost of assets used in operations, including our satellite constellations, property, equipment and intangible assets, over their estimated service lives.
We expect our Sirius XM cost of equipment to remain relatively flat. 40 Table of Contents Pandora and Off-platform Cost of Services Pandora and Off-platform Cost of Services includes revenue share and royalties, programming and content, customer service and billing, and transmission expenses.
We expect our Sirius XM cost of equipment to decrease as aftermarket sales decline. 43 Table of Contents Pandora and Off-platform Cost of Services Pandora and Off-platform Cost of Services includes revenue share and royalties, programming and content, customer service and billing, and transmission expenses.
Our XM-3 satellite launched in 2005 and our XM-4 satellite launched in 2006 are used as in-orbit spares and reached the end of their depreciable lives in 2020 and 2021, respectively. Our XM-5 satellite was launched in 2010 and is expected to reach the end of its depreciable life in 2025.
Our XM-3 satellite was launched in 2005 and is used as an in-orbit spare and reached the end of its depreciable life in 2020. Our XM-5 satellite was launched in 2010 and is expected to reach the end of its depreciable life in 2025.
ARPU is derived from total earned subscriber revenue (excluding revenue derived from our connected vehicle services) and net advertising revenue, divided by the number of months in the period, divided by the daily weighted average number of subscribers for the period.
The increase was driven by higher vehicle related churn, partially offset by lower non-pay churn. ARPU is derived from total earned subscriber revenue (excluding revenue derived from our connected vehicle services) and net advertising revenue, divided by the number of months in the period, divided by the daily weighted average number of subscribers for the period.
As of December 31, 2022, Pandora had approximately 6.2 million subscribers. The majority of revenue from Pandora is generated from advertising on our Pandora ad-supported radio service which is sold under the SXM Media brand.
As of December 31, 2023, Pandora had approximately 46.0 million monthly active users and 6.0 million subscribers. The majority of revenue from Pandora is generated from advertising on our Pandora ad-supported radio service which is sold under the SiriusXM Media brand.
At December 31, 2022, Pandora had approximately 47,638 monthly active users, a decrease of 4,637 monthly active users, or 9%, from the 52,275 monthly active users as of December 31, 2021. The decrease in monthly active users was driven by an increase in ad-supported listener churn and a decrease in the number of new users. Subscribers.
At December 31, 2023, Pandora had approximately 46,026 monthly active users, a decrease of 1,612 monthly active users, or 3%, from the 47,638 monthly active users as of December 31, 2022. The decrease in monthly active users was driven by an increase in ad-supported listener churn and a decline in the number of new users. Subscribers.
For the years ended December 31, 2022 and 2021, income tax expense was $392 and $212, respectively, and our effective tax rate was 24.4% and 13.9%, respectively.
For the years ended December 31, 2023 and 2022, income tax expense was $260 and $392, respectively, and our effective tax rate was 17.1% and 24.4%, respectively.
As of December 31, 2022, $80 was outstanding under our Credit Facility and $1,670 was available for future borrowing under our Credit Facility.
As of December 31, 2023, no amount was outstanding under our Credit Facility and $1,750 was available for future borrowing under our Credit Facility.
The reconciliation of net income to the adjusted EBITDA is calculated as follows: For the Years Ended December 31, 2022 2021 Net income: $ 1,213 $ 1,314 Add back items excluded from Adjusted EBITDA: Impairment, restructuring and acquisition costs 64 20 Share-based payment expense (1) 197 202 Depreciation and amortization 536 533 Interest expense 422 415 Loss on extinguishment of debt — 83 Other expense (income) 9 (9) Income tax expense 392 212 Adjusted EBITDA $ 2,833 $ 2,770 (1) Allocation of share-based payment expense: For the Years Ended December 31, 2022 2021 Programming and content $ 34 $ 33 Customer service and billing 6 6 Transmission 6 6 Sales and marketing 52 58 Engineering, design and development 39 36 General and administrative 60 63 Total share-based payment expense $ 197 $ 202 52 Table of Contents Free cash flow - is derived from cash flow provided by operating activities plus insurance recoveries on our satellites, net of additions to property and equipment and purchases of other investments.
The reconciliation of net income to the adjusted EBITDA is calculated as follows: For the Years Ended December 31, 2023 2022 Net income: $ 1,258 $ 1,213 Add back items excluded from Adjusted EBITDA: Legal settlements and reserves 24 — Impairment, restructuring and acquisition costs 82 64 Share-based payment expense (1) 184 197 Depreciation and amortization 554 536 Interest expense 423 422 Other expense 5 9 Income tax expense 260 392 Adjusted EBITDA $ 2,790 $ 2,833 (1) Allocation of share-based payment expense: For the Years Ended December 31, 2023 2022 Programming and content $ 34 $ 34 Customer service and billing 5 6 Transmission 6 6 Sales and marketing 45 52 Engineering, design and development 46 39 General and administrative 48 60 Total share-based payment expense $ 184 $ 197 55 Table of Contents Free cash flow - is derived from cash flow provided by operating activities, net of additions to property and equipment and purchases of other investments.
We expect Pandora and Off-platform subscriber revenues to decline slightly. Pandora and Off-platform Advertising Revenue is generated primarily from audio, display and video advertising from on-platform and off-platform advertising. For the years ended December 31, 2022 and 2021, Pandora and Off-platform advertising revenue was $1,576 and $1,542, respectively, an increase of 2%, or $34.
Pandora and Off-platform Advertising Revenue is generated primarily from audio, display and video advertising from on-platform and off-platform advertising. For the years ended December 31, 2023 and 2022, Pandora and Off-platform advertising revenue was $1,589 and $1,576, respectively, an increase of 1%, or $13.
The increase was primarily due to additional investments in advertising and marketing to support our brands and streaming marketing expenditures. We anticipate that sales and marketing expenses will decline slightly based on current levels of direct marketing, performance media, and brand marketing spend associated with acquiring and retaining listeners and subscribers.
The decrease was primarily due to a decrease in streaming marketing and marketing to support our brands as well as lower personnel-related costs. We anticipate that sales and marketing expenses will remain flat based on current levels of direct marketing, performance media, and brand marketing spend associated with acquiring and retaining listeners and subscribers.
For the Years Ended December 31, 2022 2021 2022 vs 2021 Net cash provided by operating activities $ 1,976 $ 1,998 $ (22) Net cash used in investing activities (548) (200) (348) Net cash used in financing activities (1,562) (1,682) 120 Net (decrease) increase in cash, cash equivalents and restricted cash (134) 116 (250) Cash, cash equivalents and restricted cash at beginning of period 199 83 116 Cash, cash equivalents and restricted cash at end of period $ 65 $ 199 $ (134) Cash Flows Provided by Operating Activities Cash flows provided by operating activities decreased by $22 to $1,976 for the year ended December 31, 2022 from $1,998 for the year ended December 31, 2021.
For the Years Ended December 31, 2023 2022 2023 vs 2022 Net cash provided by operating activities $ 1,850 $ 1,976 $ (126) Net cash used in investing activities (686) (548) (138) Net cash used in financing activities (1,005) (1,562) 557 Net increase (decrease) in cash, cash equivalents and restricted cash 159 (134) 293 Cash, cash equivalents and restricted cash at beginning of period 65 199 (134) Cash, cash equivalents and restricted cash at end of period $ 224 $ 65 $ 159 Cash Flows Provided by Operating Activities Cash flows provided by operating activities decreased by $126 to $1,850 for the year ended December 31, 2023 from $1,976 for the year ended December 31, 2022.
For the years ended December 31, 2022 and 2021, programming and content expenses were $58 and $48, respectively, an increase of 21%, or $10, and increased as a percentage of total Pandora revenue. The increase was primarily attributable to higher personnel-related costs.
For the years ended December 31, 2023 and 2022, programming and content expenses were $69 and $58, respectively, an increase of 19%, or $11, and increased as a percentage of total Pandora revenue. The increase was primarily attributable to higher podcast license fees and live event costs, partially offset by lower personnel-related costs.
For the years ended December 31, 2022 and 2021, interest expense was $422 and $415, respectively, an increase of 2%, or $7. The increase was primarily driven by a higher average outstanding debt balance as well as lower capitalized interest, partially offset by lower interest rates.
For the years ended December 31, 2023 and 2022, interest expense was $423 and $422, respectively, an increase of less than 1%, or $1. The increase was primarily driven by higher rates driven by the Credit Facility and Incremental Term Loan, partially offset by a lower average outstanding debt balance.
At December 31, 2022, Pandora had approximately 6,215 subscribers, a decrease of 178, or 3%, from the approximately 6,393 subscribers as of December 31, 2021. For the years ended December 31, 2022 and 2021, net subscriber additions were (178) and 52, respectively, a decrease of 442%, or 230. Net additions decreased as a result of a decline in trial starts.
At December 31, 2023, Pandora had approximately 6,008 subscribers, a decrease of 207, or 3%, from the approximately 6,215 subscribers as of December 31, 2022. For the years ended December 31, 2023 and 2022, net subscriber additions were (207) and (178), respectively, a decrease of 16%, or 29.
Pandora and Off-platform Pandora operates a music and podcast streaming discovery platform, offering a personalized experience for each listener wherever and whenever they want to listen, whether through computers, tablets, mobile devices, vehicle speakers or connected devices.
Sirius XM Canada's subscribers are not included in our subscriber count or subscriber-based operating metrics. Pandora and Off-platform Our Pandora and Off-platform business operates a music, comedy and podcast streaming discovery platform, offering a personalized experience for each listener wherever and whenever they want to listen, whether through mobile devices, vehicle speakers or connected devices.
For the years ended December 31, 2022 and 2021, customer service and billing expenses were $82 and $86, respectively, a decrease of 5%, or $4, and decreased as a percentage of total Pandora revenue. The decrease was primarily driven by lower transaction fees.
For the years ended December 31, 2023 and 2022, customer service and billing expenses were $83 and $82, respectively, an increase of 1%, or $1, and increased as a percentage of total Pandora revenue. The increase was primarily driven by higher bad debt expense, partially offset by lower transaction fees.
Other income for the year ended December 31, 2021, was primarily driven by interest earned on our loan to Sirius XM Canada. Income Taxes Income Tax Expense includes the change in our deferred tax assets, current federal and state tax expenses, and foreign withholding taxes.
Other expense for the year ended December 31, 2022, was primarily driven by losses associated with the investments held for our Deferred Compensation Plan. Income Taxes Income Tax Expense includes the change in our deferred tax assets, current federal and state tax expenses, and foreign withholding taxes.
As of December 31, 2022 vs 2021 Change (subscribers in thousands) 2022 2021 Amount % Sirius XM Self-pay subscribers 32,387 32,039 348 1 % Paid promotional subscribers 1,918 1,994 (76) (4) % Ending subscribers 34,305 34,033 272 1 % Sirius XM Canada subscribers 2,567 2,517 50 2 % Pandora and Off-platform Monthly active users - all services 47,638 52,275 (4,637) (9) % Self-pay subscribers 6,215 6,324 (109) (2) % Paid promotional subscribers — 69 (69) (100) % Ending subscribers 6,215 6,393 (178) (3) % The following table contains our Non-GAAP financial and operating performance measures which are based on our adjusted results of operations for the years ended December 31, 2022 and 2021.
As of December 31, 2023 vs 2022 Change (subscribers in thousands) 2023 2022 Amount % Sirius XM Self-pay subscribers 31,942 32,387 (445) (1) % Paid promotional subscribers 1,933 1,918 15 1 % Ending subscribers 33,875 34,305 (430) (1) % Sirius XM Canada subscribers 2,629 2,567 62 2 % Pandora and Off-platform Monthly active users - all services 46,026 47,638 (1,612) (3) % Self-pay subscribers 6,008 6,215 (207) (3) % Paid promotional subscribers — — — nm Ending subscribers 6,008 6,215 (207) (3) % nm - not meaningful The following table contains our Non-GAAP financial and operating performance measures which are based on our adjusted results of operations for the years ended December 31, 2023 and 2022.
(See accompanying Glossary for more details.) For the years ended December 31, 2022 and 2021, our average self-pay monthly churn rate was 1.5% and 1.6%, respectively. The decrease was driven by lower voluntary and vehicle related churn.
Average Self-pay Monthly Churn is derived by dividing the monthly average of self-pay deactivations for the period by the average number of self-pay subscribers for the period. (See accompanying Glossary for more details.) For the years ended December 31, 2023 and 2022, our average self-pay monthly churn rate was 1.6% and 1.5%, respectively.
For the years ended December 31, 2022 and 2021, transmission expenses were $158 and $159, respectively, a decrease of 1%, or $1, and decreased as a percentage of total Sirius XM revenue. The decrease was primarily driven by lower wireless costs, partially offset by costs associated with consumers using our 360L platform.
For the years ended December 31, 2023 and 2022, transmission expenses were $171 and $158, respectively, an increase of 8%, or $13, and increased as a percentage of total Sirius XM revenue. The increase was primarily driven by higher costs associated with our 360L platform and streaming.
(See the accompanying Glossary for more details.) For the years ended December 31, 2022 and 2021, SAC, per installation, was $14.32 and $12.58, respectively. The increase was driven by higher OEM hardware subsidy rates combined with a change in the mix of OEMs and higher chipset costs due to the semiconductor supply shortages. Pandora and Off-platform Monthly Active Users.
(See the accompanying Glossary for more details.) For the years ended December 31, 2023 and 2022, SAC, per installation, was $13.18 and $14.32, respectively. The decrease was driven by a change in the mix of OEMs. Pandora and Off-platform Monthly Active Users.
For the years ended December 31, 2022 and 2021, transmission expenses were $56 and $59, respectively, a decrease of 5%, or $3, and decreased as a percentage of total Pandora revenue. The decrease was primarily driven by lower personnel-related costs. We expect our Pandora and Off-platform transmission costs to decrease as a result of lower listener hours.
For the years ended December 31, 2023 and 2022, transmission expenses were $35 and $56, respectively, a decrease of 38%, or $21, and decreased as a percentage of total Pandora revenue. The decrease was primarily driven by lower colocation and personnel-related costs as well as lower streaming costs resulting from a decline in listener hours.
We expect Pandora and Off-platform advertising revenue to remain relatively flat given macroeconomic trends as growth in our Off-platform and podcast businesses is offset by a decline in on-platform revenue. 39 Table of Contents Total Consolidated Revenue Total Consolidated Revenue for the years ended December 31, 2022 and 2021, was $9,003 and $8,696, respectively, an increase of 4%, or $307.
We expect Pandora and Off-platform advertising revenue to increase driven by growth in our Off-platform and podcast businesses. 42 Table of Contents Total Consolidated Revenue Total Consolidated Revenue for the years ended December 31, 2023 and 2022, was $8,953 and $9,003, respectively, a decrease of 1%, or $50.
For the years ended December 31, 2022 and 2021, depreciation and amortization expense was $536 and $533, respectively, an increase of 1%, or $3, and decreased as a percentage of total revenue. The increase was driven by the addition of software that was developed and placed in service.
For the years ended December 31, 2023 and 2022, depreciation and amortization expense was $554 and $536, respectively, an increase of 3%, or $18, and increased as a percentage of total revenue.
For the Years Ended December 31, 2022 vs 2021 Change (subscribers in thousands) 2022 2021 Amount % Sirius XM Self-pay subscribers 348 1,152 (804) (70) % Paid promotional subscribers (76) (1,833) 1,757 96 % Net additions 272 (681) 953 140 % Weighted average number of subscribers 34,039 34,345 (306) (1) % Average self-pay monthly churn 1.5 % 1.6 % (0.1) % (6) % ARPU (1) $ 15.63 $ 14.76 $ 0.87 6 % SAC, per installation $ 14.32 $ 12.58 $ 1.74 14 % Pandora and Off-platform Self-pay subscribers (109) 45 (154) (342) % Paid promotional subscribers (69) 7 (76) nm Net additions (178) 52 (230) (442) % Weighted average number of subscribers 6,308 6,487 (179) (3) % Ad supported listener hours (in billions) 10.88 11.55 (0.67) (6) % Advertising revenue per thousand listener hours (RPM) $ 101.19 $ 102.74 $ (1.55) (2) % Total Company Adjusted EBITDA $ 2,833 $ 2,770 $ 63 2 % Free cash flow $ 1,551 $ 1,831 $ (280) (15) % nm - not meaningful (1) ARPU for Sirius XM excludes subscriber revenue from our connected vehicle services of $182 and $190 for the years ended December 31, 2022 and 2021, respectively. 45 Table of Contents Sirius XM Subscribers.
For the Years Ended December 31, 2023 vs 2022 Change (subscribers in thousands) 2023 2022 Amount % Sirius XM Self-pay subscribers (445) 348 (793) nm Paid promotional subscribers 15 (76) 91 nm Net additions (430) 272 (702) nm Weighted average number of subscribers 33,993 34,039 (46) — % Average self-pay monthly churn 1.6 % 1.5 % 0.1 % 7 % ARPU (1) $ 15.56 $ 15.63 $ (0.07) — % SAC, per installation $ 13.18 $ 14.32 $ (1.14) (8) % Pandora and Off-platform Self-pay subscribers (207) (109) (98) (90) % Paid promotional subscribers — (69) 69 nm Net additions (207) (178) (29) (16) % Weighted average number of subscribers 6,169 6,308 (139) (2) % Ad supported listener hours (in billions) 10.48 10.88 (0.40) (4) % Advertising revenue per thousand listener hours (RPM) $ 99.39 $ 101.19 $ (1.80) (2) % Total Company Adjusted EBITDA $ 2,790 $ 2,833 $ (43) (2) % Free cash flow $ 1,203 $ 1,551 $ (348) (22) % nm - not meaningful (1) ARPU for Sirius XM excludes subscriber revenue from our connected vehicle services of $161 and $182 for the years ended December 31, 2023 and 2022, respectively. 48 Table of Contents Sirius XM Subscribers.
Capital Return Program As of December 31, 2022, our board of directors had authorized for repurchase an aggregate of $18,000 of our common stock. As of December 31, 2022, our cumulative repurchases since December 2012 under our stock repurchase program totaled 3,662 shares for $16,558, and $1,442 remained available for additional repurchases under our existing stock repurchase program authorization.
As of December 31, 2023, our cumulative repurchases since December 2012 under our stock repurchase program totaled 3,731 shares for $16,834, and $1,166 remained available for additional repurchases under our existing stock repurchase program authorization.
For both the years ended December 31, 2022 and 2021, customer service and billing expenses were $415 and decreased as a percentage of total Sirius XM revenue. Higher transaction costs and bad debt expense resulting from a higher self-pay subscriber base were offset by lower call center costs.
For the years ended December 31, 2023 and 2022, customer service and billing expenses were $393 and $415, respectively, a decrease of 5%, or $22, and decreased as a percentage of total Sirius XM revenue. The decrease was primarily driven by lower call center and personnel-related costs, partially offset by higher transaction costs.
Sirius XM Other Revenue includes service and advisory revenue from Sirius XM Canada, revenue from our connected vehicle services, and ancillary revenues. For the years ended December 31, 2022 and 2021, other revenue was $150 and $151, respectively, a decrease of 1%, or $1.
For the years ended December 31, 2023 and 2022, other revenue was $136 and $150, respectively, a decrease of 9%, or $14. The decrease was primarily driven by lower royalty revenue generated by Sirius XM Canada and our connected vehicle services.
The size and timing of any purchases will be based on a number of factors, including price and business and market conditions. 48 Table of Contents On January 25, 2023, our board of directors declared a quarterly dividend on our common stock in the amount of $0.0242 per share of common stock payable on February 24, 2023 to stockholders of record as of the close of business on February 9, 2023.
On January 24, 2024, our board of directors declared a quarterly dividend on our common stock in the amount of $0.0266 per share of common stock payable on February 23, 2024 to stockholders of record as of the close of business on February 9, 2024.
Liquidity and Capital Resources The following table presents a summary of our cash flow activity for the year ended December 31, 2022 compared with the year ended December 31, 2021.
The decrease was driven by higher capital expenditures driven by satellite construction and investments in our products and technology platform as well as higher cash taxes paid. Liquidity and Capital Resources The following table presents a summary of our cash flow activity for the year ended December 31, 2023 compared with the year ended December 31, 2022.
We expect our Sirius XM advertising revenue to grow as we improve monetization opportunities through SXM Media, our advertising sales group. Sirius XM Equipment Revenue includes revenue and royalties from the sale of satellite radios, components and accessories. For the years ended December 31, 2022 and 2021, equipment revenue was $189 and $201, respectively, a decrease of 6%, or $12.
The decrease was due to a decline in the number of spots sold and aired, primarily on news and entertainment channels. We expect our Sirius XM advertising revenue to grow as we improve monetization opportunities through SiriusXM Media, our advertising sales group. Sirius XM Equipment Revenue includes revenue and royalties from the sale of satellite radios, components and accessories.
(See the accompanying Glossary for a reconciliation to GAAP and for more details.) For the years ended December 31, 2022 and 2021, free cash flow was $1,551 and $1,831, respectively, a decrease of $280, or 15%. The decrease was driven by satellite insurance recoveries in 2021 and higher income tax payments; partially offset by cash received from customers.
(See the accompanying Glossary for a reconciliation to GAAP and for more details.) For the years ended December 31, 2023 and 2022, free cash flow was $1,203 and $1,551, respectively, a decrease of $348, or 22%.
(See the accompanying Glossary for a reconciliation to GAAP and for more details.) For the years ended December 31, 2022 and 2021, adjusted EBITDA was $2,833 and $2,770, respectively, an increase of 2%, or $63. The increase was due to higher subscriber and advertising revenue, partially offset by higher revenue share and royalties, programming, and subscriber acquisition costs.
(See the accompanying Glossary for a reconciliation to GAAP and for more details.) For the years ended December 31, 2023 and 2022, adjusted EBITDA was $2,790 and $2,833, respectively, a decrease of 2%, or $43.
Cash flows used in financing activities in the year ended December 31, 2021 were primarily due to the redemptions of Sirius XM's 3.875% Senior Notes due 2022 for $1,019, 4.625% Senior Notes due 2024 for $1,541 and 5.375% Senior Notes due 2026 for $1,034, the purchase and retirement of shares of our common stock under our repurchase program for $1,523, the payment of cash dividends of $268, payment of $103 for taxes in lieu of shares issued for share-based compensation, and the repayment of borrowings under our Credit Facility of $653; partially offset by the issuance of $2,000 in aggregate principal amount of Sirius XM's 4.00% Senior Notes due 2028, $1,000 in aggregate principal amount of Sirius XM's 3.125% Senior Notes due 2026, and $1,500 in aggregate principal amount of Sirius XM's 3.875% Senior Notes due 2031.
Cash flows used in financing activities in the year ended December 31, 2023 were primarily due to repayments under our Credit Facility of $1,750, the payment of cash dividends of $383, the repurchase of $193 in principal amount of Pandora's 1.75% Convertible Senior Notes due 2023, the purchase and retirement of shares of our common stock under our repurchase program for $274 and payment of $63 for taxes in lieu of shares issued for share-based compensation, partially offset by borrowings under our Credit Facility of $1,670.
For the years ended December 31, 2022 and 2021, programming and content expenses were $546 and $511, respectively, an increase of 7%, or $35, and increased as a percentage of total Sirius XM revenue. The increase was driven by higher content licensing costs.
For the years ended December 31, 2023 and 2022, subscriber acquisition costs were $359 and $352, respectively, an increase of 2%, or $7, and increased as a percentage of total revenue.
For the years ended December 31, 2022 and 2021, revenue share and royalties were $1,250 and $1,140, respectively, an increase of 10%, or $110, and increased as a percentage of total Pandora revenue. The increase was primarily due to costs related to the acquisition of rights to sell advertising in certain podcasts.
For the years ended December 31, 2023 and 2022, revenue share and royalties were $1,292 and $1,250, respectively, an increase of 3%, or $42, and increased as a percentage of total Pandora and Off-platform revenue.
Ad RPM is calculated by dividing advertising revenue by the number of thousands of listener hours to our Pandora advertising-based service. 46 Table of Contents For the years ended December 31, 2022 and 2021, RPM was $101.19 and $102.74, respectively. The decrease was a result of a decline in sell-through. Total Company Adjusted EBITDA.
RPM is a key indicator of our ability to monetize advertising inventory created by our listener hours on the Pandora services. RPM is calculated by dividing advertising revenue by the number of thousands of listener hours to our Pandora advertising-based service. For the years ended December 31, 2023 and 2022, RPM was $99.39 and $101.19, respectively.