The calculator
How the startup costs calculator works
Build a one-page picture of how much funding you need to launch. List your one-off setup costs and your monthly running costs, and the calculator helps you estimate the cash required to get to launch and through the early months before the business is self-sustaining.
Getting this right — and choosing the correct business structure from day one — avoids expensive mistakes. Our business start-up service guides you through it.
The costs first-timers underestimate
The forecast is usually wrong in three predictable places. Tax is not a cost people plan for in year one, and it arrives with payments on account attached. Your own drawings are not in most first forecasts at all. And the gap between invoicing and being paid is consistently modelled as shorter than it turns out to be.
Money spent before you started still counts
Expenditure in the seven years before trading begins can generally be relieved as though it were incurred on the first day — equipment, software, professional fees, market research, incorporation. People throw the receipts away because the business did not exist yet. Keep them. VAT paid before registration can also be recovered within limits once you register.
Break-even is a range, not a point
Run the forecast twice: once with revenue arriving a third slower than you expect, and once with costs a third higher. If the business survives both, the plan is robust. If it only works on the optimistic version, the plan is a hope with a spreadsheet attached.
Frequently asked
How much cash do I need to start a business?+
Enough to cover one-off setup costs plus several months of running costs before the business breaks even. The calculator helps you size it; we can pressure-test the plan.
What do people forget in a first forecast?+
Tax — including payments on account in the second year — their own drawings, and how long customers actually take to pay. Those three between them account for most first-year cash surprises.
Can I claim costs from before I started trading?+
Generally yes. Spend in the seven years before trading begins is treated as incurred on day one, covering equipment, software, professional fees and incorporation, and pre-registration VAT can be recovered within limits. Keep the receipts even though the business did not formally exist.
Beyond the tools
An estimate is a starting point, not a plan.
Bring us the number you just worked out and we will tell you what it means for your position — and what to do about it.
Or call 07480 281548





