Product Market Fit

Product Market Fit

AI Agent Templates

Claude as Your CFO

The exact prompts a founder uses to run a finance function without hiring one

Guillermo Flor's avatar
Guillermo Flor
May 27, 2026
∙ Paid

The CFO function is 40 hours a month of mechanical work: pulling data, reconciling numbers, explaining variances, building scenarios, formatting reports. At earlier stages, none of it requires a seasoned finance executive.

Claude can run most of that layer. The setup takes less than an hour.

📚 This guide covers the context setup, the weekly finance check, month-end close, rolling forecast, scenario modeling, strategic decisions and investor updates with the exact prompts for each.

Inside you will find:

  1. How to Build Your CFO Context in 20 Minutes

  2. How to Run Your Weekly Finance Check

  3. How to Close the Month Without a Finance Team

  4. How to Build and Update a Rolling Forecast

  5. How to Model Scenarios

  6. The Strategic Decisions Prompts

  7. How to Write Investor Updates


👋 Just a quick note before you continue!

Building great AI systems and agents is quickly becoming one of the most important advantages a startup can have. So we’ve been building non-stop and this will become a much bigger part of PMF going forward.

From now on, as a premium subscriber, you’ll get access not just to the best resources on fundraising and growth (160+ Playbooks, 65+ Success Stories, 30+ Pitch Deck Collections, 25+ Investor Resources), but also:

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