UK Salary Calculator

This calculator starts with gross annual salary, applies the standard UK personal allowance, then taxes the remaining taxable income through the 2026/27 England, Wales and Northern Ireland income tax bands. It also estimates employee Class 1 National Insurance for a typical category A employee using the primary threshold and upper earnings limit.

The method is: gross salary minus personal allowance equals taxable income; taxable income is split across the basic, higher and additional rate bands; employee NI is charged at 8% between the annualised primary threshold and upper earnings limit, then 2% above that. The personal allowance is tapered by GBP1 for every GBP2 of income above GBP100,000, which is why high earners can see a sharp change in take-home pay.

Use the result as a practical planning estimate for annual salary input, monthly salary input, tax estimation, national insurance estimation, monthly take-home pay, annual take-home pay. The calculator is designed to make the main moving parts visible immediately, so it is most useful when you want to compare scenarios, sense-check a decision, or understand why one input changes the final result.

Before relying on the number, check whether your situation includes anything outside the calculator scope. Common examples are local rules, provider fees, payroll timing, special reliefs, bank holidays, tariff changes, exchange-rate markups, unusual tax codes, or personal circumstances that need official guidance or professional advice.

To make the estimate more accurate, use figures from the most recent bill, payslip, lender quote, receipt, official notice or provider screen you have. Rounded inputs are fine for quick comparisons, but precise inputs are better when you are deciding whether something is affordable or comparing two similar options.

Re-run the calculator whenever a key assumption changes, such as a new rate, different term, changed salary, updated threshold, extra fee, altered usage pattern or different date range. Keeping those assumptions fresh is often more useful than trying to make one calculation perfect.

If you are using the result for a formal decision, keep a note of the inputs you used and the date of the calculation. That makes it easier to compare the estimate with a later quote, bill, payslip or official calculation.