Understand Contribution-Based Equity Before You Commit to an Agreement

Dynamic equity is the fairest way to allocate ownership in a startup, because it reflects what each founder actually contributes, not what they planned to contribute.
This free Dynamic Equity Split Tool (built on the Slicing Pie methodology by Mike Moyer) lets founders retrofit past contributions and forecast future ones, giving you a clear picture of what “fair” really looks like.

It’s the simplest way to test whether a dynamic equity model fits your team - before drafting a cofounder agreement.

Who This Tool Is For

Designed for founders who want:

• A transparent, contribution-based view of equity

• A quick way to see who is contributing what - and how much that translates to to value for the business

• A fairness check before equity negotiations

• A method to explore whether dynamic equity is right for their team

Perfect for:
founders, cofounding teams, early employees joining a founding team, accelerators, and advisors.

Benefits

The Dynamic Equity Split Tool helps you:

• Compare contributions across founders’ time, cash, risk, IP, and effort by translating all into common monetary denomination

• Calculate each founder’s share based on actual contributions

• Prevent resentment and misalignment caused by fixed splits that over time become unfair because situation changed

• Surface contribution imbalances early - and adjust the equity stake accordingly so it remains fair in the future

• Run “what if” scenarios to test contribution changes

• Prepare for the full Dynamic Equity Agreement later

Fairness becomes objective - not emotional.

What’s Inside

Your free tool includes:

• A retrofit calculator for past contributions

• A forecast model for future expected contributions

• Editable input fields for:

  • Hours worked

  • Cash invested

  • Expenses covered

  • Founder risk factors

  • IP contributions

• Automatic share allocation outputs

• A summary view showing % ownership for each founder

• A simple introduction to the Slicing Pie logic

• Ready-to-use charts for visualizing equity shifts