Idea PlannerTest a business idea before you spend money
Worksheets for start-up cost, monthly profit and loan instalments, an idea check and ten idea pages that list what to find out. No made-up earnings.
Start here
- Idea checkTen questions to answer
- Start-up cost worksheetHow much to find
- Monthly profit worksheetProfit and break-even
- Loan instalment calculatorMonthly instalment
- Business ideasWhat to find out for ten ideas
- GuidesTest, costs, cash, records
Common questions
Is the planner free?
Yes, with no account. Everything is worked out in your browser.
Does it tell me what a business earns?
No. It helps you work out your own numbers and find out what you do not yet know.
Are loan schemes described here?
No. They change; ask a bank or the official page of the scheme.
This site states no profit figure, start-up cost, licence requirement or loan scheme: you type your own numbers, and the idea pages list questions to ask and things to measure. Interest rates in the worksheets are typed by you. It is not financial, tax or legal advice. Checked 14 November 2026.