CAC payback period
Also called: customer acquisition payback, payback
ELI5
How long it takes to earn back the cost of winning a customer.
Used in conversation
“CAC payback is fourteen months on the new plan.”
Definition
The time required for gross profit from a customer to recover acquisition cost.
Here “CAC payback period” means: The time required for gross profit from a customer to recover acquisition cost.
Pitch context
You will see “CAC payback period” in fundraising decks, data rooms, term sheets and investor conversations when the discussion reaches startup traction, burn & capital efficiency.
Why it matters: In startup traction, burn & capital efficiency, different calculation boundaries, periods or accounting treatments can change the number and the decision.
Caution
Calculation, recognition and disclosure can vary by accounting framework, company policy and reporting context.
Sources & evidence · 9
Direct term-level sources and supporting source families.
- U.S. Small Business Administration — Break-even pointDirect source · primary · checked 2026-08-16
- IFRS Foundation — IFRS GlossaryDirect source · primary · checked 2026-08-16
- U.S. Securities and Exchange Commission — Small Business Capital Formation GlossarySupporting source family · primary · checked 2026-08-16
- U.S. Securities and Exchange Commission — Exempt OfferingsSupporting source family · primary · checked 2026-08-16
- National Venture Capital Association — Model Legal DocumentsSupporting source family · institutional · checked 2026-08-16
- Y Combinator — Safe financing documentsSupporting source family · practitioner · checked 2026-08-16
- Y Combinator — Series A Term Sheet TemplateSupporting source family · practitioner · checked 2026-08-16
- Financial Accounting Standards Board — FASB Accounting Standards CodificationSupporting source family · primary · checked 2026-08-16
- U.S. Securities and Exchange Commission — Non-GAAP Financial Measures — Compliance and Disclosure InterpretationsSupporting source family · primary · checked 2026-08-16