Check acquisition cost numerator and new-customer denominator before quoting CAC. The download provides a specific review process. It does not make decisions or act in an account.
Download the free skill
One complete Markdown file. No subscription, checkout or fabricated setup files.
Download SKILL.mdWhat to provide
Acquisition cost scope, spend period, new-customer definition, counts and attribution lag.
How it works
- Document included marketing and sales costs and the measurement period.
- Verify the denominator is new customers, not leads. Record attribution lag.
- Divide compatible acquisition cost by verified new customers; zero makes CAC undefined.
- Return scope gaps and comparison limits. Do not move budget or claim causal ROI.
The output
cost period/scope | acquired customer definition/count | lag | CAC | comparability gap
Worked fictional example
Fictional cost 1,000 and 20 new paying customers gives CAC 50 under the approved scope. Using 100 leads yields 10 but is not customer CAC. Zero acquired makes CAC undefined.
Checks and limits
Preserve source versions and original values. Unknowns stay unknown. Use a qualified reviewer for regulated, legal or hiring decisions. No send, share, account change, schedule, ledger update or payment is authorized. No live account test is claimed.
More founders workflows · How-to guides
Method: reviewed source. Demand lead: GSCinvestors19/reportgeneration11;Stripebusinessmethoddemand. These are site-query cluster impressions and method evidence, not exact new-topic monthly search volume or a traffic promise. Checked October 3, 2026.