Metrics•Reviewed by Deliverability Engineering•4 min read

CAC

Customer Acquisition Cost

Definition:Customer Acquisition Cost is the total sales and marketing expenditure required to win a single new paying customer.

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Deliverability Impact
Foundational
Implementation Time
Monthly Review
Key Industry & Algorithm Benchmarks
Healthy SaaS LTV:CAC
≥ 3.0x
Standard investor benchmark for venture-backed SaaS
Target CAC Payback Period
< 12 Months
Time required to recoup sales and marketing costs
Interactive Technical Utility

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Calculate projected meetings, pipeline revenue, and ROI metrics for this benchmark.

Replies88
Meetings31
Est. Revenue$24,800
Pro Tip from the Trenches

Isolate outbound CAC from blended company CAC: Outbound CAC should be calculated specifically against outbound-sourced pipeline to verify whether cold prospecting is operating profitably compared to paid ads.

Outbound CAC & Payback Formula
Outbound CAC = (SDR Salaries + Commissions + Software Tooling + Infrastructure + Lead Data) / (Customers Acquired from Outbound)

CAC Payback Period (Months) = Outbound CAC / (Average Monthly Gross Margin Per Customer)
Target Payback: < 12 Months

Frequently Asked Questions about CAC

Under 12 months is considered healthy for SMB and mid-market SaaS; under 18 months is acceptable for enterprise contracts with high net retention.

Definition Customer Acquisition Cost (CAC) is the total aggregate cost required to acquire a new paying customer. It includes everything spent on sales and marketing over a specific period, divided by the number of customers acquired in that same period.

The CAC Formula CAC = (Total Sales & Marketing Costs) / Number of New Customers Acquired

What Belongs in the Calculation? A common mistake is calculating CAC based only on direct ad spend or software costs. A true, fully-loaded CAC must include:

  • Salaries and commissions for the sales and marketing teams.
  • Advertising spend (Google, LinkedIn, sponsorships).
  • Software and infrastructure costs (CRM, data enrichment tools, sending infrastructure).
  • Creative and agency fees.

Example: If a company spends $30,000 in Q1 on sales salaries, $10,000 on LinkedIn ads, and $5,000 on software tools, the total cost is $45,000. If they acquired 30 customers in Q1, their CAC is $1,500.

Blended CAC vs. Channel CAC

  • Blended CAC divides total spend by all new customers, including those who came in through organic search or referrals (which have no direct acquisition cost). Blended CAC gives a high-level view of business efficiency.
  • Channel CAC isolates the cost and customers of a specific channel (e.g., outbound cold email vs. paid search). Blended CAC can easily hide a highly unprofitable channel if organic growth is subsidizing it. You must track both.

CAC Payback Period CAC is only meaningful when compared to the revenue a customer generates. The Payback Period measures how many months it takes to recover the CAC. Payback Period = CAC / (Monthly Recurring Revenue × Gross Margin) If your CAC is $1,500, and the customer pays you $200/month (with a 90% margin), you recover the cost in 8.3 months.