Working formulas, a solved example and a “Start here” sheet that explains every step. Works in Excel and Google Sheets, no sign-up.
Every workbook is in English, with a solved example and ready-made formulas.
Collections and retention tracker
30 certificates, days overdue, and a summary for each project.
Project cost and profitability
8 cost lines, the estimate at completion, and a performance verdict.
13-week cash flow
Lowest projected balance, the shortfall week, and a safe-minimum alert.
Document and renewal tracker
Licences, certificates and bank guarantees, before they expire.
Calculate in your browser, no download.
Two free calculators using the same formulas as our tools, with every figure explained.
- Payment certificate calculator — Retention, advance recovery, retention cap and net amount due.
- Project profitability calculator — Estimate at completion, expected profit and margin.