Convert a contractor day rate to an equivalent annual salary and compare outside/inside IR35 take-home.
Enter your day rate
The daily rate you charge clients, before any VAT. This is typically what is stated in your contract.
Adjust working days
The default is 227 billable days (260 working days minus 8 bank holidays minus 25 holiday days). Adjust if your contract has different terms.
Review equivalent figures
See the annual revenue equivalent, hourly rate, and take-home comparisons for outside IR35, inside IR35, and a comparable permanent salary.
What happens after you submit your Self Assessment return — refunds, balancing payments, amendments, HMRC enquiries, the SA302 for mortgages, and the 5-year record-keeping rule
Making Tax Digital for Income Tax (MTD ITSA) starts April 2026 for £50k+ self-employed and landlords. Here's what it means, when it applies to you, the software requirements and how it changes Self Assessment forever.
How HMRC's payments-on-account system works, why your first January bill is bigger than expected, when to reduce them, and the trap of treating January and July as separate
Disclaimer: All results are estimates for guidance only and do not constitute financial, tax or legal advice. Always consult a qualified professional.