Pay Rise Calculator UK: Take-Home Change

Divide the increase by your old salary and multiply by 100. A rise from £30,000 to £31,500 is £1,500, which is 5%.

A basic rate taxpayer keeps about 72% of a rise, a higher rate taxpayer about 58%, and between £100,000 and £125,140 as little as 38%.

Compare the percentage with CPI inflation from the Office for National Statistics. If the rise is lower, your real pay is falling.

Usually not. Your tax code reflects your allowances, not your salary, so it stays the same unless your benefits or other income change.

Only the part above £50,270 is taxed at 40%. You never lose money overall from moving into a higher band.

It can affect Universal Credit, which falls by 55p for every extra pound earned after tax, and Child Benefit if income goes over £60,000.

Yes. You repay 9% of income above your plan threshold, so a pay rise increases repayments.

Gather evidence of your achievements and the market rate for your role, then ask for a meeting with your manager. A specific figure helps.

Usually from the date your employer confirms. Backdated rises are often paid in a lump sum in the next payroll.

If your pension contributions are a percentage of salary, they will go up with your pay, increasing both your and your employer's contributions.

An increase given to help pay keep pace with rising prices, rather than a reward for performance.

No. It uses the bands for England, Wales and Northern Ireland. Scottish rates differ for income tax but NI is the same.