How many months until each cohort breaks even?

MetricMonths until a cohort's cumulative contribution profit covers its acquisition cost

Unitmonths to break even on CAC

Bar chart showing months-to-payback for each acquisition cohort. Rising bars mean unit economics deteriorating. Build by tracking cumulative gross profit until it crosses CAC per cohort. Watch trend, not just absolute number. Example: Jan 24 cohort 5 months; Jun 25 cohort 11 months (deterioration).

CAC

Customer acquisition cost. Fully loaded sales and marketing spend in a period divided by new customers won in that period.

Non-subscription DTC brands, blended verticals, 2025 to 2026. Definition used: cohort gross profit or contribution profit, not revenue, divided against fully loaded new-customer acquisition cost, measured until cumulative contribution equals CAC. · Two definitional traps drive most disagreement between published numbers. First, revenue payback and contribution payback differ by roughly the inverse of gross margin, so a brand quoting 3 months on revenue is at 6 to 7 months on contribution at 50% margin. Second, blended CAC and new-customer CAC give very different answers for brands with high repeat rates. Business model matters more than vertical: marketplaces clear in 1 to 3 months, subscription in 3 to 9, pure DTC in 6 to 12. Investor convention is consistent across sources at under 12 months healthy and under 6 months strong. Payback in DTC is lumpy rather than smooth, because the first order's contribution lands on day one and reorders arrive months apart, so a smoothed curve misstates front-loaded and back-loaded brands in opposite directions.

Each successive cohort line crosses the CAC line later than the one before it, so the fan of curves is opening downward and to the right rather than tightening, and the most recent cohorts have not crossed at all.

Jan cohort crosses at month 5, Apr at month 7, Jul at month 9, and Oct has not crossed by month 6 with cumulative contribution at 61% of CAC. MER has held at 4.0 across the whole period, so the aggregate dashboard shows nothing wrong.

• Measure payback on cohort contribution profit and fully loaded new-customer CAC, not revenue and blended CAC. Revenue payback flatters the number by roughly the inverse of gross margin, and blended CAC hides acquisition cost behind repeat orders.
• Attack the reorder interval rather than CAC when payback is long. Payback equals orders-to-break-even multiplied by months between purchases, so compressing a 60-day repeat cycle to 40 days cuts payback by a third without touching acquisition cost.
• Run payback per channel and cap spend in channels that do not clear the cash constraint, rather than managing to a blended target. Channels differ enough that a blended 7-month figure regularly contains a 4-month channel and an 11-month one.
• Read payback next to MER rather than instead of it. A brand can hold MER at 4.0 for six months while payback drifts from 8 to 14 months, because AOV is holding while repeat rate collapses, and only the cohort view catches it.

1. EightxAverage ecommerce CAC payback by business model 2026 · 2026 · FY2025 SEC 10-K data from 10 public ecommerce companies plus third-party benchmark ranges Marketplaces clear CAC in 1 to 3 months, subscription brands in 3 to 9, pure DTC in 6 to 12; retention investment typically moves payback by 1 to 3 months over two quarters eightx.co ↗
2. EightxAverage CAC Payback by DTC Vertical 2026 · 2026 · 2025 to 2026 industry data cross-referenced against 35+ DTC and CPG client engagements; cites Optifai payback benchmarks n=939 Food and beverage 1 to 3 months, beauty 2 to 4, pet 2 to 4, supplements 3 to 6, fashion 3 to 6, electronics 6 to 12+ eightx.co ↗
3. Saras AnalyticsCAC Payback Period Explained · 2026 · Benchmark synthesis citing Lenny's Newsletter survey data Under 12 months is the common benchmark with under 6 months ideal for ecommerce and DTC; companies under 6 months are twice as likely to be judged efficient-growth by investors sarasanalytics.com ↗
4. 9AMCAC Payback Period: Modeling It for DTC · 2026 · Agency benchmark set across DTC categories Under 6 months is strong for most DTC categories and above 12 months creates cash-flow pressure requiring outside capital; cohort-level modelling is required because DTC has no clean subscription-style curve nine.am ↗
5. The DTC PlaybookEcommerce Unit Economics: CAC, LTV, MER and Margin · 2026 · Operator playbook, methodology reference DTC payback is lumpy not smooth; front-loaded brands pay back faster than a smoothed approximation shows and back-loaded brands slower, because the first order's contribution lands on day one thedtcplaybook.com ↗
6. DigitalAppliedCustomer Acquisition Cost Benchmarks 2026 · 2026 · Aggregated 2025 and early 2026 published datasets Post-ZIRP expectations tightened; ecommerce DTC brands need to recover CAC inside first order plus second-order LTV, typically 3 to 4 months, to scale paid acquisition without bridge financing digitalapplied.com ↗
7. MHI Growth EngineDTC CAC Payback Period: What It Is and How to Optimize It · 2026 · Operator guidance with investor criteria Investors look for payback under 12 months with under 6 excellent, and read consistently declining payback across successive cohorts as a strong signal mhigrowthengine.com ↗
8. AdLibrary (citing McKinsey and Bain)CAC Payback Period: Benchmarks, Levers, and the Metric That Tells You If the Business Works · 2026 · Methodology reference citing McKinsey CLV research and Bain DTC profitability research Company-level LTV estimates run 2x to 3x off realised cohort performance in the first 24 months, which is why payback (a closed, auditable system) is preferred to LTV for capital decisions adlibrary.com ↗