5 Cap Table Mistakes That Cost Founders Millions

By Priya Sharma — Feb 10, 2026

Your cap table is the single most consequential document in your startup. Get it wrong early, and the compounding effects can cost you millions.

1. Uncapped SAFEs Without Modeling the Dilution

SAFEs are founder-friendly — until they're not. Always model the conversion scenarios before signing.

2. Ignoring the Option Pool Shuffle

Investors typically require a 10-20% option pool before their investment. This pool comes out of the pre-money valuation.

3. Missing Pro-Rata Rights Documentation

Keep a clean record from day one.

4. Vesting Schedule Gaps

Every founder should be on a four-year vesting schedule with a one-year cliff.

5. Not Using Software to Track Changes

Spreadsheet cap tables break. Use purpose-built cap table software.