UK PAYE Tax Code Calculator 2026/27

2026/27

Check PAYE Income Tax for one weekly or monthly pay period using a supported tax code, cumulative totals and HMRC tax-table rounding.

Rates reviewed 14 August 2026. Methodology

Published and source-checked by Mehmood Rajoka, founder and publisher. Review our editorial policy.

Scope: PAYE Income Tax for one weekly or monthly payroll period. National Insurance, pensions, student loans, benefits and payroll corrections are not included.

Planning a whole-year salary rather than checking payroll?

Use the annual salary calculator

Example result

PAYE Income Tax this month

£623.60

Pay after PAYE tax only

£3,543.07

National Insurance, pension, student loans and other payslip deductions are not included in the pay-after-PAYE figure.

Current-period calculation

1257L · cumulative · month 1

PAYE Income Tax only

Tax code used: 1257L
Jurisdiction: England or Northern Ireland
Tax basis: Cumulative
Total pay to date: £4,166.67
Pay adjustment to date: £1,048.26
Taxable pay before whole-pound rule: £3,118.41
Taxable pay used for tax: £3,118.00
Calculated tax due to date: £623.60
Tax already due before this period: £0.00
Tax due this period before limit: £623.60
50% regulatory limit: £2,083.33

HMRC PAYE tables round taxable pay down to whole pounds before tax is calculated. The pay-adjustment figure can therefore differ slightly from simply dividing the annual Personal Allowance.

Separate full-year code projection

If the current month pay repeated for a full year, the underlying 1257L code would project:

Annualised pay: £50,000.04
Full-year PAYE projection: £7,484.00

This projection applies the code across a complete year. It is not the current deduction multiplied by 12, and it does not replace an end-of-year tax calculation.

Why this may differ from a payslip

A payslip can include National Insurance, pension, student-loan deductions, benefits, earlier corrections or a newer HMRC coding notice. Check that the entered code, pay period and previous cumulative figures match the payroll record before investigating a difference.

Official sources

Rates and thresholds are checked against the following primary sources. Review dates are shown on the relevant guide or methodology page.

Scope: Independent PAYE Income Tax estimate. Unsupported specialist codes are rejected and the calculation does not submit payroll information to HMRC.

Last reviewed: 14 August 2026

Disclaimer: This calculator provides estimates only and does not constitute tax, financial, or legal advice. Always consult a qualified professional for your specific circumstances. View methodology