Why it matters in B2B GTM
CAC is half of the most-watched ratio in SaaS: LTV:CAC. A healthy B2B SaaS business runs LTV:CAC at 3:1 or better and recovers CAC within 12 to 18 months. Sub-1:1 means you're burning cash to grow with no payback in sight.
Reported CAC varies wildly depending on what you include. "Paid CAC" (just ad spend / new customers) is misleadingly low. Blended CAC that includes sales team cost, content team cost, and tooling is the one to plan against.
CAC differs by channel. Inbound CAC is usually a fraction of outbound CAC for the same product. The right move is rarely to pick one — it's to know each channel's CAC and payback and mix them deliberately.
How ICPGTM uses it
ICPGTM GTM plans recommend channel mixes with rough cost guidance per channel, so you can model CAC expectations per ICP before you spend, not after.
Related terms
- Sales Cycle
A sales cycle is the average elapsed time and the sequence of stages a deal goes through from first contact to closed-won — the heartbeat that determines hiring plans, pipeline coverage, and cash-flow forecasting.
- 30/60/90 Plan
A 30/60/90 plan is a phased GTM rollout broken into three 30-day windows — learn and ship the first wedge, expand channels and measure, then double down on what works and cut what doesn't.
- Go-to-Market Plan(GTM Plan)
A go-to-market (GTM) plan is the playbook for how a company will reach, win, and retain customers — covering target segments, positioning, channels, pricing, messaging, sales motion, and the milestones for the first 30, 60, and 90 days.
- Product-Market Fit
Product-market fit is the state where a product satisfies a strong market demand — customers buy without heroic selling, retain without heroic support, and refer others unprompted.
- TAM, SAM, SOM
TAM (Total Addressable Market) is everyone who could theoretically buy; SAM (Serviceable Addressable Market) is the slice you can actually reach with your product and model; SOM (Serviceable Obtainable Market) is the realistic share you can win in a defined window.
Apply this to your own product
Generate three ranked ICPs, a buyer committee, outreach drafts, and a 30/60/90 GTM plan in about 90 seconds — your first playbook is free.