What this calculator does

A pay rise can look different depending on whether it is quoted as a percentage, an annual amount or a monthly change. This calculator puts those views side by side.

Formula used

A percentage rise multiplies current salary by the rise percentage. A fixed rise adds the amount directly. The annual increase is then divided by 12 and 52 for monthly and weekly comparisons.

How to read the result

The result is gross pay, not take-home pay. Tax, pension contributions, student loans, benefits and payroll timing can change what arrives in your bank account.

Assumptions

  • Uses annual gross salary.
  • Treats the bonus as separate from the recurring pay rise.
  • Does not estimate tax or benefit changes.

Sources and checks

This calculator uses a standard public formula. Where rules or thresholds can change, source links are listed on the relevant page.

Frequently asked questions

Why is take-home pay different from the pay rise?

Payroll deductions are based on tax code, pension, National Insurance, student loans and other deductions. A gross rise is the starting point, not the final net amount.