--- title: Customer Acquisition Cost (CAC): Formula, Calculator and Benchmarks description: CAC formula: total sales and marketing spend divided by new customers acquired. Use the free calculator, see what to include and compare SaaS benchmarks. canonical: https://www.scalexp.com/saas-metrics-library/customer-acquisition-costs-or-cac/ --- # Customer Acquisition Cost (CAC): Formula, Calculator and Benchmarks Customer acquisition cost (CAC) is what it costs to win one new customer: total sales and marketing spend divided by new customers acquired. Calculate yours, see how the CAC ratio benchmarks against other SaaS companies, and get practical tips to improve it. CUSTOMER ACQUISITION COST No benchmark exists for CAC in dollars. CAC in dollars scales with your price point, so a median would describe neither a self-serve nor an enterprise business. The ratio is the comparable form. 2026 benchmark · 342 B2B SaaS companies This article will provide - Calculation - Benchmarks - Improvement **CAC in marketing is what it costs to win one new customer.** Add up everything you spend on sales and marketing over a period, then divide by the number of new customers you signed in that same period. The customer acquisition cost formula is: **CAC = total sales & marketing spend ÷ new customers acquired** Spend $50,000 in a quarter and sign 25 customers, and your CAC is $2,000. That is the average price you paid for each new logo. Whether you call it CAC, customer acquisition cost, or cost of customer acquisition (CCA), the calculation is the same. The number matters because it sets the price of growth. Every business can buy customers. The question is whether it can buy them for less than they are worth, and keep doing so as it scales. ## On this page 1. CAC calculator 2. What counts as sales and marketing spend? 3. Getting the measurement period right 4. Blended vs paid vs fully-loaded CAC 5. How is CAC used by SaaS companies? 6. CAC benchmarks: LTV:CAC and payback 7. Reducing CAC over the long term 8. CAC Visualization Example 9. Frequently asked questions ## CAC calculator Enter your spend and new customers for the CAC. Add the three optional fields and you also get lifetime value, the LTV:CAC ratio and payback in months. ## What counts as sales and marketing spend? This is where most CAC numbers go wrong. Two companies with identical performance can report very different figures, purely because they drew the line in different places. **Include:** - Paid advertising and campaign spend - Salaries for the sales and marketing teams, including commission and bonuses - Agency, contractor and freelancer fees - Sales and marketing software - Events, content production and design **Exclude:** - Spend aimed at existing customers, such as renewals, upsell and account management - Customer success and support, unless that team genuinely closes new business - Product and engineering costs That first exclusion matters most. Money spent on existing customers belongs to customer retention, not acquisition. Mixing the two inflates CAC and hides which marketing strategies are actually working. ## Getting the measurement period right Match the costs to the customers. If you count customers won in Q1, use Q1 spend. In practice there is a lag. Money spent in January often closes in March, and enterprise deals take longer still. Two common fixes: - **Lag the spend.** Compare this quarter’s new customers against last quarter’s spend, where your sales cycle runs about a quarter. - **Use a rolling twelve months.** Longer windows smooth out timing noise, at the cost of responsiveness. Whichever you choose, apply it consistently. A CAC that moves because you changed the method tells you nothing. ## Blended vs paid vs fully-loaded CAC ![Formula for calculating customer acquisition costs with marketing costs and sales commission.](https://www.scalexp.com/wp-content/uploads/2023/02/Customer-acquisition-costs-CAC-formula--1024x357.png) ![Formula for calculating Customer Acquisition Cost (CAC) with components listed.](https://www.scalexp.com/wp-content/uploads/2023/02/Customer-acquisition-costs-CAC-formula-2-1024x352.png) A single company-wide figure is called blended CAC. It answers one question well: what does growth cost us overall? It also hides a lot. Organic signups cost almost nothing to acquire and drag the average down, which can make paid channels look cheaper than they are. So most teams track two numbers side by side: - **Blended CAC.** All spend, all new customers. The board-level figure. - **Paid CAC.** Paid spend divided by customers from paid channels only. The number that tells you whether to spend more. Splitting further, by channel and by customer segment, is where the useful decisions come from. Enterprise customers almost always cost more to win than self-serve ones, and averaging them together tells you nothing about either. Two further variants matter once that split is settled, and they answer different questions again. **Fully-loaded CAC** adds everything acquisition actually costs: salaries and commissions for sales and marketing staff, tooling, agency fees and allocated overhead — not only media spend. It is almost always the largest of the four, and it is the figure investors and boards expect to see. **Marginal CAC** asks what the *next* customer would cost at today’s spend level, which is the only one of the four that answers “should we spend more?”. | Variant | What it includes | What it is good for | |---|---|---| | Blended CAC | All sales and marketing spend ÷ all new customers, paid and organic | What growth costs the business overall | | Paid CAC | Paid spend ÷ customers won through paid channels | Channel and budget decisions | | Fully-loaded CAC | Paid spend plus salaries, commissions, tools and overhead | Board and investor reporting | | Marginal CAC | The cost of the next customer at current spend | Whether to increase spend | The 2026 benchmarks show a blended [CAC ratio](https://www.scalexp.com/saas-metrics-library/cac-ratio/) of **$1.30** of sales and marketing spend per $1 of new ARR, against **$1.63** for new-name customers alone. That gap is the point: the blended figure is being held down by expansion and renewals from customers the business already had. Winning a genuinely new customer costs about **25% more** than the blended number suggests. Report the same variant every period. Most CAC that looks like it is falling is simply a different definition, and a company that quietly moves from fully-loaded to paid CAC can show an improvement that never happened. ### Worked example: fully-loaded CAC for a US SaaS company Take a US SaaS company that closes its books in QuickBooks Online and tags its sales and marketing costs with a class. For the third quarter, the relevant expense lines read as follows. The figures are illustrative, not a benchmark and not ScaleXP pricing. | Q3 sales and marketing cost | Amount | |---|---| | Paid advertising | $60,000 | | Sales and marketing salaries, commission and bonuses | $170,000 | | Sales and marketing software | $12,000 | | Agency fees and events | $18,000 | | **Fully-loaded acquisition spend** | $260,000 | Account management for existing customers cost another $40,000 in the quarter. It stays out, because it buys retention, not acquisition. The quarter brought in 80 new customers, 32 of them through paid channels. - **Fully-loaded blended CAC:** $260,000 ÷ 80 = **$3,250** - **Paid CAC:** $60,000 ÷ 32 = **$1,875** Both numbers are correct, and they answer different questions. Paid CAC is lower because salaries, software and agency costs sit outside it, so use it for channel budgets. Report the fully-loaded figure to the board, on the same basis every quarter. Keeping these costs in their own expense accounts, or under one class in QuickBooks Online, is what makes the split repeatable. ### Get the 2026 SaaS benchmark report Definitions, formulas, and this year’s median and top-quartile numbers for all 20 metrics in the library. One PDF you can take straight into your next board meeting. See our [privacy policy](https://www.scalexp.com/privacy-policy/). ## How is CAC used by SaaS companies? CAC tells you whether growth is being bought at a sensible price. In a subscription business, where revenue arrives monthly rather than upfront, that question decides how fast you can afford to grow. Finance and marketing teams use it in four ways: 1. **Setting budgets.** Once you know what a customer costs, next quarter’s sales and marketing number becomes a calculation rather than a guess. 2. **Comparing marketing strategies.** Split CAC by channel and campaign, and the cheap routes to market separate quickly from the expensive ones. 3. **Testing pricing.** Set against [customer lifetime value (LTV)](https://www.scalexp.com/saas-metrics-library/customer-lifetime-value/), CAC shows whether your price supports the cost of winning the customer. 4. **Forecasting.** If you know what a customer costs and what one is worth, you can model growth instead of hoping for it. On its own, though, CAC is only half a story. A high figure is fine if customers stay for years. A low one is no help if they leave within three months. That is why it is read next to customer retention and lifetime value, never alone. The companion measure on the growth side is [sales efficiency](https://www.scalexp.com/saas-metrics-library/sales-efficiency/), which sets the same spend against the new revenue it produced rather than against the number of customers won. ## CAC benchmarks: LTV:CAC and payback There is no single right CAC. It depends on what you charge, how long customers stay, and how much margin they bring. What boards actually compare is the **ratio**: spend per dollar of new recurring revenue, and how long it takes to earn back. The two benchmarks are LTV:CAC and CAC payback. Each has its own guide: the [LTV:CAC ratio](https://www.scalexp.com/saas-metrics-library/ltv-and-cac/) and the [CAC payback period](https://www.scalexp.com/saas-metrics-library/cac-payback-period/), with 2026 figures by growth rate and contract size in [SaaS CAC payback benchmarks 2026](https://www.scalexp.com/blog/saas-benchmarks-cac-payback/). You can [track customer acquisition cost automatically from your CRM and Xero or QuickBooks](https://www.scalexp.com/saas-metrics/) with ScaleXP. Read the ratio, not the raw number A CAC of $9,000 means nothing on its own. The **CAC ratio** is what boards compare: sales and marketing spend per $1 of new ARR won. The market median is **$1.30 blended**. For new customers only it is **$1.63** — and that improved **19% in a year**, the sharpest efficiency gain in the dataset. ### How long until you get it back | Cohort | Median CAC payback | |---|---| | All companies | 16 months | | Top quartile | 10 months or less | | Bottom quartile | 24 months or more | | Sub-$5K contract value | 11 months | | Enterprise ($50K–$100K) | 22 months | Payback improved from 18 months the previous year. Enterprise takes twice as long as self-serve, which is expected rather than alarming — the contracts are larger and last longer. ### What you get back for it | Market | Lifetime value to CAC | |---|---| | Vertical SaaS | 5.6x | | Horizontal SaaS | 4.1x | Vertical SaaS costs more to acquire and takes four months longer to pay back, but returns substantially more over the customer’s life. A longer payback is defensible when lifetime value justifies it. Source: 2026 Aleph × Benchmarkit SaaS & AI Performance Benchmarks, published 1 June 2026, full-year 2025 actuals from 342 B2B SaaS and AI-native companies (198 reported CAC payback). Automate the calculation ## Stop rebuilding CAC every quarter. Connect Xero, QuickBooks or Zoho Books once. With Xero or QuickBooks Online, add your CRM too. ScaleXP keeps CAC, LTV:CAC, payback and 30+ SaaS metrics current – without another spreadsheet. Compare CAC, LTV:CAC and payback using consistent definitions and cohort-based analysis. Example connected view - **Accounting:** Xero, QuickBooks, Zoho Books - **CRM (with Xero or QuickBooks Online):** HubSpot, Salesforce, Pipedrive CAC $2,000 Calculated from sales and marketing spend plus new customers. Illustrative example figures, not your live data. ## Reducing CAC over the long term CAC is far easier to lower structurally than tactically. Cutting spend on marketing campaigns reduces cost and volume together, which usually leaves CAC roughly where it started. The changes that tend to hold are these: - **Alignment between marketers and sales.** Most wasted acquisition cost sits in leads generated to one definition and worked to another. - **Referral and loyalty programs.** Advocacy from the existing customer base is consistently the most cost effective channel, because it shortens the sales cycle rather than buying more attention. - **Retention.** A base that stays produces more expansion revenue per acquisition, which improves the economics even when CAC itself does not move. - **Channel mix.** Track CAC by channel rather than blended. A blended figure hides the fact that one campaign may be comfortably under target while another is several times over it. Judged over the long term, CAC responds far more to conversion quality and retention than to media budget. ## CAC Visualization Example ScaleXP automates the calculation. It connects to your accounting and CRM systems and builds a [full suite of SaaS metrics](https://www.scalexp.com/saas-metrics/) on industry-standard definitions, which you can then adjust to match how your business defines them. ![Chart displaying customer acquisition costs over a year with monthly data points and budget comparison.](https://www.scalexp.com/wp-content/uploads/2023/06/Customer-acquisition-costs-CAC-1024x795.png) The chart shows CAC for the current month alongside a year-to-date average, which makes trends, improvements and seasonality easy to read. A comparison to budget is included and can be automated from your budgets or forecasts. ## Frequently asked questions ### What is a good customer acquisition cost for a B2B SaaS company? A good customer acquisition cost (CAC) for a B2B SaaS company is most usefully judged as a ratio, and the 2026 median is $1.30 of sales and marketing spend per $1 of new ARR, or $1.63 for new-name customers. Raw CAC varies too much by contract size to compare directly, so investors also look at CAC payback, where the median is 16 months. ScaleXP calculates CAC automatically from accounting and CRM data, so finance teams can compare their own acquisition cost against those benchmarks month after month. ### Can ScaleXP calculate customer acquisition cost from Xero and HubSpot? Yes, ScaleXP calculates customer acquisition cost (CAC) automatically by taking sales and marketing spend from Xero or QuickBooks Online and new customer counts from HubSpot, Salesforce or Pipedrive. Finance chooses which accounts count as acquisition spend, and ScaleXP applies the same rule every period. Matan, Director of Finance, says: “The prebuilt KPIs are really valuable and save me a lot of time.” Finance teams stop rebuilding CAC every quarter and get a consistent number ready for every review. ### How does ScaleXP keep CAC consistent with the financial statements? ScaleXP keeps CAC consistent with the financial statements because acquisition spend is read directly from the ledger in Xero, QuickBooks or Zoho Books, the same source as the P&L. Salaries, commissions, campaigns and software sit in the accounts finance already closes each month, so customer acquisition cost reconciles to the management accounts. ScaleXP matches that spend to new customers from HubSpot, Salesforce or Pipedrive using finance-owned definitions. The board gets a CAC figure that ties back to the reported numbers rather than a marketing estimate. ### Can ScaleXP break down CAC by cohort and compare it to budget? Yes, ScaleXP breaks down CAC by period and customer cohort and compares it to budget in live dashboards and PowerPoint board packs. Finance teams see customer acquisition cost alongside CAC payback and LTV:CAC, so acquisition spend is read in context. In presentation mode, directors can drill down from the headline CAC to the underlying spend. The outcome is sharper decisions on where to invest the next dollar of sales and marketing budget, backed by numbers the board trusts. ### What is the CAC formula? CAC = total sales and marketing spend ÷ new customers acquired, with both measured over the same period. A company that spends $50,000 in a quarter and signs 25 new customers has a CAC of $2,000. Include acquisition salaries, commission, paid media, tools and agency fees; leave out spend on existing customers, such as account management and renewals. ### What is the difference between CAC and CAC payback? CAC is the cost of winning one customer, in dollars. CAC payback is how many months that customer’s gross margin takes to earn the cost back: CAC ÷ (monthly revenue per customer × gross margin). A $2,000 CAC on a customer paying $250 a month at an 80% gross margin pays back in 10 months. The 2026 median for B2B SaaS is 16 months (Aleph × Benchmarkit, published 1 June 2026). For Xero, QuickBooks and Zoho Books ## See how quickly your SaaS metrics can be fully automated. ScaleXP can calculate most core SaaS metrics directly from your Xero, QuickBooks or Zoho Books data. With Xero or QuickBooks Online, add CRM data when you want richer customer, segment or cohort analysis. Book a 15-minute call and we'll show you what can be automated from your current setup. From connected data to current metrics Connect Xero, QuickBooks or Zoho Books. ScaleXP reads and maps the relevant accounting data. Related metrics[CAC payback period](https://www.scalexp.com/saas-metrics-library/cac-payback-period/)[LTV:CAC ratio](https://www.scalexp.com/saas-metrics-library/ltv-and-cac/)[customer lifetime value](https://www.scalexp.com/saas-metrics-library/customer-lifetime-value/)[sales efficiency](https://www.scalexp.com/saas-metrics-library/sales-efficiency/) ## You may also be interested in ![User interface displaying CAC playback options and controls for data analysis.](https://www.scalexp.com/wp-content/uploads/2023/02/CAC-playback.png) ## CAC Payback Measures how long it takes for a company to recoup the costs of acquiring a new customer. [CAC Payback →](https://www.scalexp.com/saas-metrics-library/cac-payback-period/) ![Graph illustrating the relationship between LTV and CAC metrics in a business context.](https://www.scalexp.com/wp-content/uploads/2023/02/LTV-CAC.png) ## CAC / LTV ratio Lifetime value divided by acquisition costs, indicating the margin delivered by each new customer. [LTV:CAC →](https://www.scalexp.com/saas-metrics-library/ltv-and-cac/) ![Chart illustrating the SaaS magic number concept for business growth analysis.](https://www.scalexp.com/wp-content/uploads/2023/02/SaaS-magic-number-2.png) ## SaaS Magic Number A measure of growth or sales efficiency. Calculated as Revenue Growth divided by Customer Acquisition Costs. [SaaS Magic Number →](https://www.scalexp.com/saas-metrics-library/saas-magic-number/) ## SAAS METRICS LIBRARY Read about more SaaS metrics, from ARR to Rule of 40. [View all metrics →](https://www.scalexp.com/saas-metrics-library/)