Pay Rise Calculator UK
This pay rise calculator helps you work out how much more you may actually keep after a salary increase. Instead of only showing the headline gross rise, it estimates the effect on your take-home pay after Income Tax, National Insurance, pension contributions and student loan deductions.
This is useful if you are reviewing a pay review, comparing a new salary offer, checking whether a percentage rise is worth it, or trying to understand why a pay rise does not fully translate into extra net pay.
What this pay rise calculator includes
The calculator compares your current package with your pay after a rise using the same 2026/27 UK tax rules. Depending on the information you enter, it can take account of:
- Current salary versus new salary after the rise
- A direct new salary, a fixed cash rise, or a percentage pay rise
- Annual, monthly and weekly take-home differences
- Tax code and tax region settings
- Pension contribution amount and treatment
- Student loan and postgraduate loan deductions
- Bonus, overtime, salary sacrifice and taxable benefits
- Other deductions that affect net pay
This gives a more realistic picture than just comparing gross salaries on paper.
How to use the pay rise calculator
Start by entering your current salary and then choose how you want to model the increase. You can enter a brand new salary directly, enter a known pound increase, or enter a percentage rise. The calculator then compares your current and new situation side by side.
You can also keep settings shared between both scenarios or adjust them separately if your pay rise comes with other changes, such as a new pension setup, a different bonus level, or changes to taxable benefits.
Why a pay rise does not fully increase take-home pay
A pay rise increases your gross salary, but not all of that increase reaches your bank account. Part of the extra amount may be reduced by higher Income Tax, National Insurance, student loan repayments or pension contributions.
This is why the net gain from a pay rise is usually lower than the headline rise. A calculator like this helps show the difference between the gross increase and the amount you may actually keep.
What can affect the value of a pay rise?
The same pay rise can have a different net effect depending on factors such as:
- Your tax band and tax code
- Student loan and postgraduate loan deductions
- Pension contribution level and treatment
- Salary sacrifice arrangements
- Taxable benefits
- Bonus and overtime income
- Tax region differences
This means a £2,000 or 5% pay rise will not create the same take-home increase for everyone.
Who this calculator is useful for
This tool may be helpful if you are:
- Reviewing a pay rise from your current employer
- Comparing a new salary offer against your current pay
- Checking whether a gross rise is worth it after deductions
- Comparing before and after pension or student loan effects
- Reviewing a package where bonus, benefits or deductions also change
Important note
This calculator provides general estimates only. Actual payslip results may vary depending on your payroll setup, exact tax code treatment, pension configuration, payroll timing, rounding and other employer-specific adjustments.
Use the UK Fin Lab pay rise calculator
Use the UK Fin Lab pay rise calculator above to estimate the real impact of a salary increase. It is a practical way to compare gross and net changes and understand how much extra income a pay rise may actually leave you with.