Estimate what should land in your account after CIS is deducted.
Turn the money you want to take home into a day rate that covers tax, business costs and time you cannot bill.
Estimate Income Tax and Class 4 National Insurance, then see what to set aside.
Three chasing letters plus a statutory interest and fixed-sum calculator for unpaid commercial invoices.
Written by Chris, founder of TradePilot. Last reviewed 10 September 2026. Figures use the 2026/27 tax year for England, Wales and Northern Ireland. This is general information, not tax advice.
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