For the self-employed and contractors
Tools built around profit rather than payslips, using the published rates for 2025/26. Sole trader modelling only — estimates, not tax advice.
- Hourly rate calculatorConvert an annual salary into hourly, daily, weekly and monthly equivalents.
- Self-employed tax calculatorEstimate income tax and Class 2/4 National Insurance on trading profit.
- Contractor day rate calculatorEstimate the day rate needed to reach a target take-home as a sole trader.
- VAT calculatorAdd or remove VAT at the standard, reduced or zero rate.
Start from profit, not revenue
Tax is charged on profit: revenue less allowable expenses. Money you draw for yourself is not an expense, and payments on account can make the first year's cash flow feel heavier than the tax rate suggests.
Read: self-employed basicsTools people use next
Partner placementAccounting software partner slot
Reserved placement for an accounting software partner used by sole traders and contractors.
Placeholder — no partner is currently linked in this slot.
Business banking partner slot
Reserved placement for a business current account provider.
Placeholder — no partner is currently linked in this slot.
Some links on this site are commercial partnerships. If you use them we may be paid a fee, at no cost to you. Partnerships never change how a calculator works or what a result says, and we do not rank partners by how much they pay.