About Net Pay Calculator

Built by someone who was sick of guessing what a salary offer actually meant after tax.

It started with a job offer. A number on a piece of paper that was supposed to be exciting, but instead left me reaching for a spreadsheet and a headache. How much of that salary would I actually take home? After Income Tax, National Insurance, pension contributions, and the student loan that refuses to go away, what would actually land in my bank account each month?

That is the question this calculator was built to answer, quickly and clearly, without requiring an accountancy degree to understand the result.

Why UK Tax Is Surprisingly Complex

On the surface, UK tax seems straightforward: you earn money, the government takes a slice, and you keep the rest. In reality, the system is a labyrinth of overlapping rules and thresholds that interact in ways most people never fully appreciate.

  • Income Tax bands change depending on whether you live in England, Wales, Northern Ireland, or Scotland. Scottish taxpayers face seven different bands, each with its own rate.
  • National Insurance operates on an entirely separate set of thresholds from Income Tax, with different rules for employees, the self-employed, and company directors.
  • The Personal Allowance taper creates a hidden 60% effective tax rate for anyone earning between £100,000 and £125,140, a detail that catches many people off guard.
  • Student loan repayments come in five different plan types, each with its own threshold and repayment rate.
  • Pension contributions interact with tax and NI differently depending on whether they are made through salary sacrifice or relief at source.

Most people do not want to understand all of this. They just want a quick, reliable answer: what will I actually take home? That is exactly what we provide.

How We Calculate

We believe in transparency. Our calculator is not a black box. Here is how it works:

  • Income Tax: We apply the correct progressive tax bands for the current tax year, including the Personal Allowance taper above £100,000. The calculator handles all four UK tax band structures.
  • National Insurance: We calculate Class 1 NI for employees (8% between the Primary Threshold and Upper Earnings Limit, 2% above) and Class 2 plus Class 4 NI for the self-employed.
  • Pension contributions: Whether you enter a fixed amount or a percentage of gross salary, we deduct pension contributions before calculating tax and NI, reflecting how salary sacrifice works in practice.
  • Business expenses: For freelancers, contractors, and limited company directors, allowable expenses are deducted from gross income before tax is calculated on the remaining profit.
A note on accuracy: Our calculator provides estimates based on published HMRC rates and thresholds. It is designed to give you a clear picture of your take-home pay, but it does not replace professional tax advice. Individual circumstances, such as benefits in kind, multiple employments, or complex tax codes, may affect your actual deductions.

Keeping It Current

Tax rates and thresholds change. The government adjusts them in Budgets and Autumn Statements, and those changes take effect at the start of each new tax year in April. We update our calculator to reflect the latest rates as soon as they are confirmed.

The calculator currently uses 2025/26 tax year rates and thresholds, which apply from 6 April 2025 to 5 April 2026. This includes:

  • Personal Allowance: £12,570
  • Basic Rate threshold: £50,270
  • Higher Rate threshold: £125,140
  • Employee NI: 8% / 2%
  • Self-employed NI (Class 4): 6% / 2%

When the 2026/27 rates are announced, we will update the calculator promptly so you always have access to accurate figures.

What We Are Not

We are not accountants, tax advisors, or affiliated with HMRC. This tool is built for anyone who wants a quick, clear answer to the question "what will I actually take home?" If you need personalised tax advice, particularly around complex areas like IR35, dividend planning, or capital gains, please consult a qualified professional.

We do not store your salary data on our servers. All calculations happen in your browser. Your financial information stays on your device.