United Kingdom payroll calculators

Calculators

• UK paycheck calculator — gross to net, England, Wales, Northern Ireland and Scotland
• Scotland paycheck calculator — the Scottish bands branch
• UK employer cost calculator — what an employee really costs

Coverage

The UK engine computes an employee paycheque and an employer's total cost for every jurisdiction of the United Kingdom: England, Wales, Northern Ireland and Scotland. Income Tax runs on two branches that are never blended — the rest-of-UK bands (England, Wales and Northern Ireland) and the Scottish bands (Scotland) — each from its own data pack. Every parameter (bands, thresholds, the Personal Allowance and its taper, National Insurance thresholds and rates) was read line by line against the primary publications: status primary-verified, 28 October 2026. Wales sits on the rest-of-UK branch because the Welsh Rates of Income Tax are set at 10p in every band for 2026/27, which makes the combined Welsh rates identical to England's and Northern Ireland's — proven from the Welsh Government's own budget statement and written into the data pack, not assumed.

A market in development

The United Kingdom is the newest market on this site — opened for tax year 2026/27 and in development. It is built country by country, on the United Kingdom's own tax rules, pay periods (weekly and monthly), official sources and content; it is not an adaptation of the United States module and does not claim its depth. What exists today is the calculator set above. A UK article library, jurisdiction-by-jurisdiction guides and a UK salary layer do not exist yet; the site's guides and salary data cover the United States and say so where they appear.

What is not covered

• Free-form entry: the United Kingdom calculators run on declared precomputed matrices (jurisdiction × salary × pay frequency). Any other salary or frequency is not computed on these pages in this version.
• Tax codes other than 1257L (BR, D0, D1, NT, 0T, K codes and the Scottish and Welsh prefixed codes) and the Week 1 / Month 1 basis.
• The cumulative path of real PAYE inside the tax year: the engine annualises regular pay, so a mid-year start, an irregular bonus or a tax-code change lands differently on a real payslip even when the year-end total agrees.
• National Insurance categories other than A, and National Insurance for company directors (who are assessed on an annual earnings period).
• Employment Allowance: the employer calculator shows the gross National Insurance liability, before the allowance of up to £10,500 a year that an eligible employer can claim.
• Pension contributions (including auto-enrolment) and student-loan repayments: neither is deducted in the net figures.

Sources

HM Revenue & Customs — Rates and thresholds for employers 2026 to 2027 (the PAYE band tables for England and Northern Ireland, Wales and Scotland; Class 1 National Insurance thresholds and rates; the Employment Allowance) and the CWG2 Employer further guide, whose published worked examples of National Insurance the engine reproduces to the penny. GOV.UK — Income Tax rates and Personal Allowances (the Personal Allowance taper), Marriage Allowance, and the official Estimate your Income Tax service, against which the engine was cross-checked: agreement within £1.80 a year on a £50,000 England salary and £3.78 on the same salary in Scotland, the whole difference explained by the £9 of extra allowance the PAYE code tables apply — itemised on the calculators under Known limits. Scottish Government — Scottish Budget 2026-27 (Table 2.01) and the Scottish Income Tax technical factsheet, whose published table of Scotland's difference from the rest of the UK the engine matches at 17 incomes out of 17. Welsh Government — the Draft Budget 2026-27 statement on Welsh taxes (Welsh Rates of Income Tax held at 10p in every band).