Biggest changeSPS COMMERCE, INC. 33 Form 10-K for the Annual Period ended December 31, 2024 Table of Contents Contractual and Commercial Commitment Summary Our contractual obligations and commercial commitments as of December 31, 2024 are summarized below: Payments Due by Period (in thousands) Less Than 1 Year 1-3 Years 3-5 Years More Than 5 Years Total Operating lease obligations, including imputed interest $ 5,952 $ 6,916 $ 225 $ 48 $ 13,141 Purchase commitments 14,187 4,160 — — 18,347 Total $ 20,139 $ 11,076 $ 225 $ 48 $ 31,488 Future Capital Requirements Our future capital requirements may vary significantly from those now planned and will depend on many factors, including: • costs to develop and implement new products and applications, if any; • sales and marketing resources needed to further penetrate our market and gain acceptance of new products and applications that we may develop; • expansion of our operations in the U.S. and internationally; • response of competitors to our products and applications; and • use of capital for acquisitions.
Biggest changeFuture Capital Requirements Our future capital requirements may vary significantly from those now planned and will depend on many factors, including: • costs to develop and implement new products and applications, if any; • sales and marketing resources needed to further penetrate our market and gain acceptance of new products and applications that we may develop; • expansion of our operations in the U.S. and internationally; • response of competitors to our products and applications; and • use of capital for acquisitions.
Amortization of Intangibles Assets - Amortization expense consists of the expense recognition of acquired intangible assets over their estimated useful lives. Other Income (Expense), net Other income (expense), net consists primarily of investment income, in addition to realized gain (loss) from investments held and realized gain (loss) from foreign currency impacts on cash and investments.
Amortization of Intangibles Assets - Amortization expense consists of the expense recognition of acquired intangible assets over their estimated useful lives. Other Income, net Other income, net consists primarily of investment income, in addition to realized gain (loss) from investments held and realized gain (loss) from foreign currency impacts on cash and investments.
Net income per share, the comparable GAAP measure of financial performance, consists of net income divided by the weighted average number of shares of common and diluted stock outstanding during each period. To quantify the tax effects, we recalculated income tax expense excluding the direct book and tax effects of the specific items constituting the non-GAAP adjustments.
Net income per share, the most directly comparable GAAP measure of financial performance, consists of net income divided by the weighted average number of shares of common and diluted stock outstanding during each period. To quantify the tax effects, we recalculated income tax expense excluding the direct book and tax effects of the specific items constituting the non-GAAP adjustments.
Year Ended December 31, 2023 Compared to Year Ended December 31, 2022 The discussion of our liquidity and capital resources for the year ended December 31, 2023 compared to the year ended December 31, 2022 can be found in Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023.
Year Ended December 31, 2024 Compared to Year Ended December 31, 2023 The discussion of our liquidity and capital resources for the year ended December 31, 2024 compared to the year ended December 31, 2023 can be found in Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024.
SPS COMMERCE, INC. 29 Form 10-K for the Annual Period ended December 31, 2024 Table of Contents Significant estimates in valuing certain intangible assets may include, but are not limited to, utilizing variants of the income approach, such as the relief-from-royalty and multi-period excess earnings methods, which estimate future expected cash flows from acquired customers and developed technology from a market participant perspective, useful lives, and discount rates.
SPS COMMERCE, INC. 28 Form 10-K for the Annual Period ended December 31, 2025 Table of Contents Significant estimates in valuing certain intangible assets may include, but are not limited to, utilizing variants of the income approach, such as the relief-from-royalty and multi-period excess earnings methods, which estimate future expected cash flows from acquired customers and developed technology from a market participant perspective, useful lives, and discount rates.
SPS COMMERCE, INC. 27 Form 10-K for the Annual Period ended December 31, 2024 Table of Contents Cost of Revenues and Operating Expenses Cost of Revenues - Cost of revenues consist primarily of personnel costs, stock-based compensation expense, and technology costs for our customer success and implementation teams, customer support personnel, and application support personnel, as well as amortization related to internally developed software.
SPS COMMERCE, INC. 26 Form 10-K for the Annual Period ended December 31, 2025 Table of Contents Cost of Revenues and Operating Expenses Cost of Revenues - Cost of revenues consist primarily of personnel costs, stock-based compensation expense, and technology costs for our customer success and implementation teams, customer support personnel, and application support personnel, as well as amortization related to internally developed software.
SPS COMMERCE, INC. 28 Form 10-K for the Annual Period ended December 31, 2024 Table of Contents Our management uses these non-GAAP financial measures to compare our performance to that of prior periods for trend analyses and planning purposes. Adjusted EBITDA is also used for purposes of determining executive and senior management incentive compensation.
SPS COMMERCE, INC. 27 Form 10-K for the Annual Period ended December 31, 2025 Table of Contents Our management uses these non-GAAP financial measures to compare our performance to that of prior periods for trend analyses and planning purposes. Adjusted EBITDA is also used for purposes of determining executive and senior management incentive compensation.
A s mall portion of our recurring revenue customers consist of separate units within a larger organization and are separately invoiced. We treat each of these units, which may include divisions, departments, affiliates and franchises, as distinct recurring revenue customers.
A small portion of our recurring revenue customers consist of separate units within a larger organization and are separately invoiced. We treat each of these units, which may include divisions, departments, affiliates and franchises, as distinct recurring revenue customers.
Income Tax Expense Income tax expense consists primarily of income taxes for U.S. federal jurisdiction in addition to income taxes for various state and international jurisdictions. Metrics and Non-GAAP Financial Measures Recurring Revenue - We define recurring revenue as active contracts during the reporting period to regularly pay us fees for subscription-based and reoccurring services.
Income Tax Expense Income tax expense consists primarily of income taxes for U.S. federal jurisdiction in addition to income taxes for various state and international jurisdictions. Metrics and Non-GAAP Financial Measures Recurring Revenue - We define recurring revenue as active contracts during the reporting period under which the customer regularly pays us fees for subscription-based and reoccurring services.
New recurring revenue customers do not have a meaningful contribution to revenue at the beginning of their tenure as our recurring revenue customer, and therefore a majority of the increased revenue was generated from existing recurring revenue customers.
New recurring revenue customers do not have a meaningful contribution to revenue at the beginning of their tenure, and therefore, a majority of the increased revenue was generated from existing recurring revenue customers.
Margin, the comparable GAAP measure of financial performance, consists of net income divided by revenue.
Margin, the most directly comparable GAAP measure of financial performance, consists of net income divided by revenue.
The following are our recurring revenue streams: Fulfillment - Our Fulfillment product is a comprehensive solution designed to streamline supply chain operations. Our connections empower retailers, grocers, distributors, suppliers, manufacturers, and logistics firms to efficiently send and receive order data, ensuring accurate execution of required processes from order to invoicing and revenue recovery through fully automated operations.
The following are our recurring revenue streams: • Fulfillment - Our Fulfillment product offers a comprehensive solution designed to streamline supply chain operations. Our connections empower retailers, brands, distributors, manufacturers, and logistics providers to efficiently send and receive order data, ensuring accurate execution of required processes from order to invoicing and revenue recovery through fully automated operations.
Additionally, fluctuations in operating assets and liabilities resulted in a decrease of $3.1 million, driven by changes in the amount and timing of settlements and general growth of the business.
Additionally, fluctuations in operating assets and liabilities resulted in a decrease of $39.4 million, driven by changes in the amount and timing of settlements and general growth of the business.
The increase in revenue period-over-period resulted primarily from the increase in average recurring revenues per recurring revenue customer, which we also refer to as wallet share.
The increase in revenue period-over-period resulted from the increase in average recurring revenues per recurring revenue customer, which we also refer to as ARPU.
Financing Activities The increase in cash used in financing activities from the year ended December 31, 2024 to the year ended December 31, 2023 was primarily due to an increase in cash used for share repurchases of $37.6 million to continue to deliver shareholder value.
Financing Activities The increase in cash used in financing activities from the year ended December 31, 2024 to the year ended December 31, 2025 was primarily due to an increase in cash used for share repurchases of $76.7 million to continue to deliver shareholder value.
Statements of Cash Flows Summary The summary of activity within the consolidated statements of cash flows was as follows: Year Ended December 31, (in thousands) 2024 2023 Net cash provided by operating activities $ 157,398 $ 132,298 Net cash used in investing activities (110,454) (92,642) Net cash provided by (used in) financing activities (23,026) 15,970 Operating Activities The increase in cash provided by operating activities from the year ended December 31, 2024 to the year ended December 31, 2023 was primarily due to an increase in net income as adjusted for non-cash expenses, of $28.2 million, driven by continued growth in revenue, as partially offset by cash paid for expenses to operate the growing business.
Statements of Cash Flows Summary The summary of activity within the consolidated statements of cash flows was as follows: Year Ended December 31, (in thousands) 2025 2024 Net cash provided by operating activities $ 178,790 $ 157,398 Net cash used in investing activities (169,152) (110,454) Net cash used in financing activities (100,832) (23,026) Operating Activities The increase in cash provided by operating activities from the year ended December 31, 2024 to the year ended December 31, 2025 was primarily due to an increase in net income as adjusted for non-cash expenses, of $60.7 million, driven by continued growth in revenue, as partially offset by cash paid for expenses to operate the growing business.
Additionally, the revenue growth was attributable to an increase in recurring revenue customers, which is driven primarily by continued business growth and by business acquisitions. • Wallet share increased 15% to approximately $13,300 for the year ended December 31, 2024 from approximately $11,550 for the year ended December 31, 2023.
Additionally, the revenue growth was attributable to an increase in recurring revenue customers, which is driven primarily by continued business growth and business acquisitions. • ARPU increased 8% to approximately $14,350 for the year ended December 31, 2025 from approximately $13,300 for the year ended December 31, 2024 .
SPS COMMERCE, INC. 31 Form 10-K for the Annual Period ended December 31, 2024 Table of Contents The following table provides a comparison of Margin to Adjusted EBITDA Margin: Year Ended December 31, (in thousands, except Margin and Adjusted EBITDA Margin) 2024 2023 Revenue $ 637,765 $ 536,910 Net income 77,054 65,824 Margin 12% 12% Adjusted EBITDA 186,631 157,630 Adjusted EBITDA Margin 29% 29% Non-GAAP Income per Share - Non-GAAP income per share consists of net income adjusted for stock-based compensation expense, amortization expense related to intangible assets, realized gain or loss from investments held and foreign currency impact on cash and investments, other adjustments as necessary for a fair presentation, including for the year ended December 31, 2024 the expense impacts from disposals of certain capitalized internally developed software and one-time acquisition-related insurance costs , and for the year ended December 31, 2023 the expense impacts from disposals of certain capitalized internally developed software and acquisition-related employee severance costs, and the corresponding tax impacts of the adjustments to net income, divided by the weighted average number of shares of common and diluted stock outstanding during each period.
The following table provides a comparison of Margin to Adjusted EBITDA Margin: Year Ended December 31, (in thousands, except Margin and Adjusted EBITDA Margin) 2025 2024 Revenue $ 751,505 $ 637,765 Net income 93,339 77,054 Margin 12% 12% Adjusted EBITDA 231,367 186,631 Adjusted EBITDA Margin 31% 29% Non-GAAP Income per Share - Non-GAAP income per share consists of net income adjusted for stock-based compensation expense, amortization expense related to intangible assets, realized gain from investments held and foreign currency impact on cash and investments, other adjustments as necessary for a fair presentation, including for the year ended December 31, 2025 the expense impacts from disposals of certain capitalized internally developed software, disposals of other equipment, remeasurement of acquired earn-out payments, and one-time acquisition-related insurance costs , and for the year ended December 31, 2024 the expense impacts from disposals of certain capitalized internally developed software and one-time acquisition-related insurance costs, and the corresponding tax impacts of the adjustments to net income, divided by the weighted average number of shares of common and diluted stock outstanding during each period.
Recurring revenues increased 20% to $600,089 for the year ended December 31, 2024, as compared to the same period in 2023, and accounted for 94% of our total revenues in 2024 and 2023.
Recurring revenues increased 20% to $718.0 million for the year ended December 31, 2025, as compared to the same period in 2024, and accounted for 96% and 94% of our total revenues in 2025 and 2024, respectively.
The following table provides a reconciliation of net income to non-GAAP income per share: Year Ended December 31, (in thousands, except per share amounts) 2024 2023 Net income $ 77,054 $ 65,824 Stock-based compensation expense 54,557 45,508 Amortization of intangible assets 23,510 16,116 Realized gain from investments held and foreign currency impact on cash and investments (115) (1,726) Other 1,064 1,198 Income tax effects of adjustments (24,505) (19,983) Non-GAAP income $ 131,565 $ 106,937 Shares used to compute net income and non-GAAP income per share Basic 37,306 36,646 Diluted 37,856 37,475 Net income per share, basic $ 2.07 $ 1.80 Non-GAAP adjustments to net income per share, basic 1.46 1.12 Non-GAAP income per share, basic $ 3.53 $ 2.92 Net income per share, diluted $ 2.04 $ 1.76 Non-GAAP adjustments to net income per share, diluted 1.44 1.09 Non-GAAP income per share, diluted $ 3.48 $ 2.85 SPS COMMERCE, INC. 32 Form 10-K for the Annual Period ended December 31, 2024 Table of Contents Year Ended December 31, 2023 Compared to Year Ended December 31, 2022 The discussion of our results from operations for the year ended December 31, 2023 compared to the year ended December 31, 2022 can be found in Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023.
The following table provides a reconciliation of net income to non-GAAP income per share: Year Ended December 31, (in thousands, except per share amounts) 2025 2024 Net income $ 93,339 $ 77,054 Stock-based compensation expense 53,728 54,557 Amortization of intangible assets 37,169 23,510 Realized gain from investments held and foreign currency impact on cash and investments (388) (115) Other 583 1,064 Income tax effects of adjustments (22,279) (24,505) Non-GAAP income $ 162,152 $ 131,565 Shares used to compute net income and non-GAAP income per share Basic 37,881 37,306 Diluted 37,992 37,856 Net income per share, basic $ 2.46 $ 2.07 Non-GAAP adjustments to net income per share, basic 1.82 1.46 Non-GAAP income per share, basic $ 4.28 $ 3.53 Net income per share, diluted $ 2.46 $ 2.04 Non-GAAP adjustments to net income per share, diluted 1.81 1.44 Non-GAAP income per share, diluted $ 4.27 $ 3.48 SPS COMMERCE, INC. 31 Form 10-K for the Annual Period ended December 31, 2025 Table of Contents Year Ended December 31, 2024 Compared to Year Ended December 31, 2023 The discussion of our results from operations for the year ended December 31, 2024 compared to the year ended December 31, 2023 can be found in Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024.
Other adjustments for the year ended December 31, 2024 included the expense impacts from disposals of certain capitalized internally developed software and one-time acquisition-related insurance costs. Other adjustments for the year ended December 31, 2023 included the expense impacts from disposals of certain capitalized internally developed software and acquisition-related employee severance costs.
Other adjustments for the year ended December 31, 2025 included the expense impacts from disposals of certain capitalized internally developed software, disposals of other equipment, remeasurement of acquired earn-out payments, and one-time acquisition-related insurance costs.
Liquidity and Capital Resources Sources of Liquidity As of December 31, 2024, our principal sources of liquidity were cash and cash equivalents of $241.0 million and net accounts receivable of $52.0 million.
Liquidity and Capital Resources Sources of Liquidity As of December 31, 2025, our principal sources of liquidity were cash and cash equivalents of $151.4 million and net accounts receivable of $68.2 million.
Other Products - We provide several complementary products, such as: ◦ Assortment - Our Assortment product simplifies the communication of robust, accurate item data by automatically translating item attributes and hierarchies through a single connection across all sales channels. ◦ Community - Our Community product allows organizations to accelerate digitization of their supply chain and improve collaboration with suppliers through proven change management, onboarding programs, and supplier score carding.
Our pre-built dashboards create custom reports, or integrate data with existing tools, to gain insights to enhance product performance, forecasting, pricing, and inventory management. • Other Products - We also have other complementary products, including: ◦ Assortment - Our Assortment product simplifies the communication of robust, accurate item data by automatically translating item attributes and hierarchies through a single connection across all sales channels. ◦ Relationship Management - Our Relationship Management product (formerly known as Community) allows organizations to accelerate digitization of their supply chain and improve collaboration with suppliers through proven change management, onboarding programs, and supplier score carding.
Wallet Share - We calculate the annualized average recurring revenues per recurring revenue customer, which we also refer to as wallet share, by dividing the annualized recurring revenues for the period by the average of the beginning and ending number of recurring revenue customers for the period.
Annual Revenue Per User ("ARPU") - We calculate the annualized average recurring revenues per recurring revenue customer, which was previously referred to as “wallet share”, by dividing the annualized recurring revenues for the period by the average of the beginning and ending number of recurring revenue customers for the period.
The following table provides a reconciliation of net income to Adjusted EBITDA: Year Ended December 31, (in thousands) 2024 2023 Net income $ 77,054 $ 65,824 Income tax expense 22,422 19,739 Depreciation and amortization of property and equipment 18,721 18,631 Amortization of intangible assets 23,510 16,116 Stock-based compensation expense 54,557 45,508 Realized gain from investments held and foreign currency impact on cash and investments (115) (1,726) Investment income (10,582) (7,660) Other 1,064 1,198 Adjusted EBITDA $ 186,631 $ 157,630 Adjusted EBITDA Margin - Adjusted EBITDA Margin consists of Adjusted EBITDA divided by revenue.
The following table provides a reconciliation of net income to Adjusted EBITDA: Year Ended December 31, (in thousands) 2025 2024 Net income $ 93,339 $ 77,054 Income tax expense 30,496 22,422 Depreciation and amortization of property and equipment 21,089 18,721 Amortization of intangible assets 37,169 23,510 Stock-based compensation expense 53,728 54,557 Realized gain from investments held and foreign currency impact on cash and investments (388) (115) Investment income (4,649) (10,582) Other 583 1,064 Adjusted EBITDA $ 231,367 $ 186,631 SPS COMMERCE, INC. 30 Form 10-K for the Annual Period ended December 31, 2025 Table of Contents Adjusted EBITDA Margin - Adjusted EBITDA Margin consists of Adjusted EBITDA divided by revenue.
Additionally, there was an increase in software subscriptions of $4.0 million due to general growth of our business. Sales and Marketing Expenses - The increase in sales and marketing expense was primarily due to increased headcount, which resulted in increases of $17.6 million in personnel-related costs and $2.8 million in stock-based compensation expense.
Cost of Revenues - The increase in cost of revenues was primarily due to increased headcount, which resulted in an increase of $12.4 million in personnel-related costs and an increase in software subscriptions of $5.2 million due to general growth of our business.
Additionally, there was an increase of $3.9 million in product management costs. Research and Development Expenses - The increase in research and development expense was primarily due to increased headcount, which resulted in an increase of $9.0 million in personnel-related costs.
Research and Development Expenses - The increase in research and development expense was primarily due to increased headcount and third-party personnel, which resulted in an increase of $9.5 million in personnel-related costs, partially offset by $5.2 million due to higher capitalization of software development costs.
SPS COMMERCE, INC. 30 Form 10-K for the Annual Period ended December 31, 2024 Table of Contents • Approximately 1,000 recurring revenue customers were added in September 2023 due to the acquisition of the existing customer base of TIE Kinetix.
SPS COMMERCE, INC. 29 Form 10-K for the Annual Period ended December 31, 2025 Table of Contents • Approximately 50 1P recurring revenue customers were added in May 2024 due to the acquisition of the existing customer base of Traverse Systems LLC ("Traverse Systems") a nd a pproximately 200 1P recurring revenue customers were added in July 2024 due to the acquisition of the existing customer base of SupplyPike Inc.
We anticipate that the number of recurring revenue customers and wallet share will continue to increase as we execute our growth strategy focused on further penetration of our market. Cost of Revenues - The increase in cost of revenues was primarily due to increased headcount, which resulted in an increase of $22.5 million in personnel-related costs.
We anticipate that the number of recurring revenue customers and ARPU will continue to increase as we execute our growth strategy focused on further penetration of our market.
Results of Operations Year Ended December 31, 2024 Compared to Year Ended December 31, 2023 The following table presents our results of operations for the periods indicated: Year Ended December 31, 2024 2023 Change ($ in thousands) $ % of revenue (1) $ % of revenue (1) $ % Revenues $ 637,765 100 % $ 536,910 100 % $ 100,855 19 % Cost of revenues 210,714 33 182,069 34 28,645 16 Gross profit 427,051 67 354,841 66 72,210 20 Operating expenses Sales and marketing 148,920 23 122,936 23 25,984 21 Research and development 62,809 10 53,654 10 9,155 17 General and administrative 102,929 16 84,887 16 18,042 21 Amortization of intangible assets 23,510 4 16,116 3 7,394 46 Total operating expenses 338,168 53 277,593 52 60,575 22 Income from operations 88,883 14 77,248 14 11,635 15 Other income, net 10,593 2 8,315 2 2,278 27 Income before income taxes 99,476 16 85,563 16 13,913 16 Income tax expense 22,422 4 19,739 4 2,683 14 Net income $ 77,054 12 % $ 65,824 12 % $ 11,230 17 % (1) Amounts in column may not foot due to rounding Revenues - Revenues increased for the 96th consecutive quarter.
Results of Operations Year Ended December 31, 2025 Compared to Year Ended December 31, 2024 The following table presents our results of operations for the periods indicated: Year Ended December 31, 2025 2024 Change ($ in thousands) $ % of revenue (1) $ % of revenue (1) $ % Revenues $ 751,505 100 % $ 637,765 100 % $ 113,740 18 % Cost of revenues 231,629 31 210,714 33 20,915 10 Gross profit 519,876 69 427,051 67 92,825 22 Operating expenses Sales and marketing 169,130 22 148,920 23 20,210 14 Research and development 68,680 9 62,809 10 5,871 9 General and administrative 126,594 17 102,929 16 23,665 23 Amortization of intangible assets 37,169 5 23,510 4 13,659 58 Total operating expenses 401,573 53 338,168 53 63,405 19 Income from operations 118,303 15 88,883 14 29,420 33 Other income, net 5,532 1 10,593 2 (5,061) (48) Income before income taxes 123,835 16 99,476 16 24,359 24 Income tax expense 30,496 4 22,422 4 8,074 36 Net income $ 93,339 12 % $ 77,054 12 % $ 16,285 21 % (1) Amounts in column may not foot due to rounding Revenues - Revenues increased for the 100th consecutive quarter.
This was primarily attributable to increased usage of our products by our recurring revenue customers. • The number of recurring revenue customers increas ed 1% to approximately 45,350 at December 31, 2024 from approximately 44,800 at December 31, 2023 primarily due to sales and marketing efforts to acquire new customers and due to recent acquisitions.
This was primarily attributable to increased usage of our products by our recurring revenue customers, partially offset by the addition of 3P recurring revenue customers, which generally have lower ARPU. • The number of recurring revenue customers increas ed 20% to approximately 54,600 at December 31, 2025 from approximately 45,350 at December 31, 2024.
Investing Activities The increase in cash used in investing activities from the year ended December 31, 2024 to the year ended December 31, 2023 was primarily due to an increase in cash used to acquire businesses of $77.7 million to further grow our business, partially offset by an increase in cash provided by net maturities of investments of $60.2 million.
Investing Activities The increase in cash used in investing activities from the year ended December 31, 2024 to the year ended December 31, 2025 was primarily due to net cash inflow of $57.5 million from the maturities and purchases of investments during the year ended December 31, 2024.
Approximately 50 recurring revenue customers were added in May 2024 due to the acquisition of the existing customer base of Traverse Systems, and approximately 200 recurring revenue customers were added in July 2024 due to the acquisition of the existing customer base of SupplyPike.
("SupplyPike"). Additionally, approximately 8,500 recurring revenue customers were added in February 2025 due to the acquisition of the existing customer base of Carbon6, of which approximately 300 are 1P recurring revenue customers and the remainder are 3P recurring revenue customers.
General and Administrative Expenses - The increase in general and administrative expense was primarily due to increased headcount, which resulted in increases of $7.1 million in personnel-related costs and $3.5 million in stock-based compensation expense. Amortization of Intangible Assets - The increase in amortization of intangible assets was driven by increased intangible assets related to recent business acquisitions.
Sales and Marketing Expenses - The increase in sales and marketing expense was primarily due to increased headcount, which resulted in an increase of $14.9 million in personnel-related costs. Additionally, channel partner and referral fees increased by $3.9 million, primarily driven by the acquisition of Carbon6.
Other Income, Net - The increase was primarily due to increased investment income. Income Tax Expense - The increase in income tax expense was primarily driven by an increase in pre-tax income, partially offset by a decrease in nondeductible executive compensation and an increase in tax benefits from credits and foreign derived intangible income.
Income Tax Expense - The increase in income tax expense was primarily driven by the increase in pre-tax book income and reduction in tax benefits recognized from equity award exercise and settlement activity due to the fluctuations in share price. The increase was partially offset with increased benefit for Research & Development tax credits.