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Pay guide

How to estimate take-home pay in the UK

Take-home pay is the amount that actually lands in your bank account. The awkward bit is that it is not just your salary minus one tax number. It is a stack of deductions, payroll timing and personal settings.

Quick version: start with gross pay, choose the pay period, then allow for Income Tax, National Insurance, pension contributions, student loans, salary sacrifice, benefits and any one-off payments. Treat the result as an estimate until you compare it with your payslip.

Start with gross pay, not the amount you want to receive

Gross pay is the pay before deductions. For a salaried role, that is usually the annual salary in the contract. For hourly work, it is the hourly rate multiplied by paid hours, with overtime or Sunday rates added separately if they are paid differently.

The period matters. GBP 3,000 a month is not the same input as GBP 3,000 a year, and a weekly figure needs annualising before it can be compared with yearly tax bands. That is why a calculator asks both for the amount and how often it is paid.

The deductions that usually make the biggest difference

Income Tax

Tax depends on taxable income, allowances, tax bands and region. Scotland can use different Income Tax bands from the rest of the UK.

National Insurance

Employee National Insurance is usually worked from pay and NI category. It is separate from Income Tax and can change the shape of a payslip.

Pension

Pension deductions can be net pay, relief at source or salary sacrifice. The same percentage can produce different take-home pay depending on the method.

Why a payslip can differ from an online estimate

A calculator usually estimates from the information you give it. A payroll system may also know about cumulative tax, previous pay in the tax year, HMRC notices, taxable benefits, a changed tax code, student loan start and stop notices, statutory payments, and employer-specific pension rules.

Rounding is another quiet difference. Some deductions are calculated per pay period and then rounded. Others are easier to explain annually. If your estimate is close but not exact, the difference is often timing, rounding or information the calculator could not know.

A practical order for checking your pay

  1. Enter gross salary or hourly pay first, before deductions.
  2. Pick the right tax year, region and tax code if you know it.
  3. Add pension details in the same style your employer uses.
  4. Add student loan plans only if they apply to you.
  5. Compare the estimate with your payslip, especially if you have bonuses, benefits or a recent job change.

Useful tools

Estimate take-home pay Work out hourly pay Compare hourly and salary

Sources reviewed 13 June 2026: GOV.UK Income Tax rates, GOV.UK National Insurance rates and GOV.UK student loan repayments. This page is general information, not financial, tax or employment advice.