Definition
Innovation accounting tracks learning progress (not just revenue) for early ventures, while the core uses efficiency and profit metrics—enabling ambidexterity.

Introduction
If you judge a sapling by fruit yield, you’ll cut it down. Early ventures need evidence KPIs until PMF.

Explanation

Pre-PMF metrics: problem validation rate, activation, retention curve shape, unit economics at small scale, time-to-insight.

Post-PMF metrics: NRR, CAC payback, contribution margin, burn multiple.

Milestone ledger: explicit evidence thresholds to graduate stages.

Dashboards: separate views for explore vs. exploit; roll-up at portfolio level.

Compensation: link team rewards to learning milestones pre-PMF.

Key Takeaways

Use stage-appropriate KPIs.

Publish PMF criteria upfront.

Prevent “success theatre” with auditable evidence.

Real-World Case
Basecamp-style (and many product-led firms) adopt activation/retention cohort metrics before scaling paid acquisition—a practical form of innovation accounting.