If you’re self-employed and want to understand how much Income Tax and National Insurance you must pay, our self-employed tax calculator can help. Designed for the 2024/25 and 2025/26 tax years, this simple tool gives you an instant estimate of your take-home pay, breaking down your self-employment income, Income Tax, and both Class 2 and Class 4 National Insurance contributions.
Whether you’re filing a Self Assessment tax return, planning your monthly budget, or simply checking how your earnings affect your tax and National Insurance bill, this calculator provides the clarity you need.
Just enter your self-employment profit, choose the relevant tax year, and see how much Income Tax and National Insurance you’ll likely need to pay and what you’ll take home.
The calculator is ideal for sole traders, freelancers, or anyone registered for self-employment. For more details on calculating these figures, see our guides: Understanding UK Income Tax and Self-Employed National Insurance: A Complete Guide.
Whether you’re new to self-employment or looking to make informed financial decisions, our calculator helps you get a quick, clear calculation before speaking to an accountant or submitting your tax return to HMRC.