About us & methodology
What this site is for
UK Calculators is a set of 27 free calculators covering UK salary, tax, pensions and take-home pay for the 2026/27 tax year. Each one is built around a single, specific question people actually ask about their pay, such as “how much would salary sacrifice cost me?” or “what’s my take-home pay if I’m paid weekly?”, rather than trying to be one do-everything tax tool. See the full list on the calculators page.
Who runs this site
UK Calculators is built and maintained independently, by one person, outside of any employer or client work. It is not a bank, a pension provider, an accountancy firm, or a government service, and it is not affiliated with, endorsed by, or in any way connected to HMRC, gov.scot, or the UK Government. It exists because working out UK take-home pay by hand is tedious and easy to get wrong, and the calculators here are the tool the site’s builder wanted to exist.
How the calculations work
Every calculator on this site shares the same underlying tax engine: a small set of pure, independently tested functions that apply the correct Income Tax bands for your region (including Scotland’s separate six-band system), the Personal Allowance taper above £100,000, employee and employer National Insurance thresholds, and student loan repayment thresholds where relevant. Calculators that compare a “before” and “after”, such as salary sacrifice, run this engine twice and show the difference. See the methodology notes at the bottom of each calculator page for its specific assumptions.
Estimates, not advice
Every figure produced by these calculators is an estimate for general guidance. They don’t know about your other income, employer-specific scheme rules, or personal circumstances that can change the numbers. Nothing on this site is financial, tax or legal advice. For advice on your own situation, speak to your employer’s payroll team, a regulated financial adviser, or HMRC directly. See the full disclaimer for more detail.
Sources for 2026/27
Every rate and threshold used for the current tax year:
- Income Tax rates and Personal Allowances (GOV.UK)
- Income Tax in Scotland (GOV.UK)
- Scottish Income Tax: rates and bands 2026 to 2027 (gov.scot)
- Rates and thresholds for employers 2026 to 2027 (GOV.UK)
- National Insurance rates and categories (GOV.UK)
- Salary sacrifice and the effects on PAYE (GOV.UK)
- Tax on your private pension contributions: Annual Allowance (GOV.UK)
- Tapered annual allowance explained 2026/27 (MoneyHelper)
- Money purchase annual allowance (MPAA) (MoneyHelper)
- National Minimum Wage and National Living Wage rates (GOV.UK)
- Maximum weekly working hours (GOV.UK)
- Personal Allowances: adjusted net income (GOV.UK)
- Child Benefit tax charge (GOV.UK)
- Child Benefit rates (GOV.UK)
- Company car benefit: the appropriate percentage, 480 Appendix 2 (GOV.UK)
General guidance referenced across the site:
- Salary sacrifice and the effects on PAYE (GOV.UK)
- Income Tax rates and Personal Allowances (GOV.UK)
- Income Tax in Scotland (GOV.UK)
- National Insurance rates and categories (GOV.UK)
- Rates and thresholds for employers 2026 to 2027 (GOV.UK)
- Repaying your student loan (GOV.UK)
- National Minimum Wage and National Living Wage rates (GOV.UK)
- National Insurance Contributions (Employer Pensions Contributions) Bill briefing (House of Commons Library)
Last reviewed
Tax figures were last checked against the sources above on 16 August 2026, for the 2026/27 tax year (06/04/2026 to 05/04/2027).