If you're asking "what is a good CAC?" you need to specify your business model first. The average SaaS CAC is $205, but that number blends self-serve PLG at $85 with B2B sales-led at $341. Comparing your business to the average without context is meaningless.
The CAC Formula
CAC = Total Acquisition Cost ÷ New Customers Acquired.
The key is "total acquisition cost" — include ad spend, marketing tools, content creation, and sales team compensation. Ad-only CAC will always look 40–60% lower than fully-loaded CAC, making benchmark comparisons misleading.
CAC Benchmarks by Industry (2025)
| Segment | Average CAC | Source | Notes |
|---|---|---|---|
| All SaaS (Average) | $205 | ProfitWell 2025 | 1,200 companies, blended |
| B2B SaaS (Sales-led) | $341 | ProfitWell 2025 | ACV > $5,000 |
| Self-serve SaaS (PLG) | $85 | ProfitWell 2025 | No sales team |
| E-commerce | $65 | HubSpot 2025 | DTC, Facebook/Google ads |
| B2B Services | $225 | HubSpot 2025 | Consulting/agencies |
Compare to your segment, not the average. A PLG company at $150 CAC is 76% above its peer median of $85. An enterprise company at $300 CAC is below its peer median of $341. Same number, completely different interpretation.
CAC Payback Period Benchmarks
| Payback | Status | Action |
|---|---|---|
| < 12 months | Healthy | Grow with confidence |
| 12–18 months | Warning | Optimize channels and pricing |
| > 18 months | Danger | Cut low-ROI channels, raise prices |
CAC payback = CAC ÷ (Monthly ARPU × Gross Margin %). Use gross margin, not revenue — using revenue inflates payback speed by 20–40%.
The LTV:CAC Check
A good CAC means nothing without LTV context. Aim for 3:1 or higher. A $500 CAC with $5,000 LTV (10:1) is healthier than a $100 CAC with $150 LTV (1.5:1). Use the LTV:CAC Ratio Calculator to check your ratio.
How to Reduce CAC
- Improve conversion rates — a 20% lift in landing page conversion lowers CAC by 20%
- Shift budget from high-CAC channels (LinkedIn, outbound) to lower-CAC channels (SEO, content, referrals)
- Increase pricing — higher ARPU makes the same CAC more efficient
- Improve retention — longer LTV means you can afford higher CAC
FAQ
What's a good CAC for bootstrapped SaaS? Under $150 for self-serve, under $400 for B2B sales-led. More importantly, target under 12-month payback — bootstrapped companies can't float 18+ months of customer cost.
Is my data safe with online calculators? The CAC Calculator runs entirely in your browser — your financial numbers are never sent to any server.
Calculate your fully-loaded CAC and compare it to your segment benchmark with the free CAC Calculator. It also estimates your payback period and monthly gross profit per customer.
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