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PRACTICE / FINANCE
PR-011 · FINANCEINTERMEDIATE

Invoice-to-cashflow forecaster

THE PROBLEM

A small firm knows its invoices but not when it will run short of cash. Build a tool that reads a set of invoices (dates and amounts, in and out) and produces a rolling 60-day cash view that clearly flags the weeks that go negative.

WHO IT'S FOROwners and accountants at small businesses without finance software.
PLAN IT
  1. 01Model the data first: each invoice is a date, an amount, and a direction (in/out).
  2. 02The valuable output is the warning — which weeks go negative and by how much.
  3. 03Start with a spreadsheet of fake invoices to prove the logic before any parsing.
BUILD IT — FREE
  1. 01Use AI to extract date + amount + direction from messy invoice text into a clean table.
  2. 02Do the running-balance maths in a spreadsheet formula — no code required.
  3. 03Colour weeks red when the projected balance drops below zero.
A FREE STACK TO START WITH
Google Sheetsa free LLM for extractiona simple chart
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