How to read the result
This calculator separates the headline gross increase from the estimated take-home increase. It also shows whether your net hourly rate improves if the raise comes with more hours or new unavoidable costs.
Methodology and assumptions
The calculator reuses the WorthMyTime 2026/27 England, Wales and Northern Ireland employment tax estimator. It compares an annualised current-pay estimate with an annualised proposed-pay estimate. It does not model Scottish Income Tax, individual tax codes, taxable benefits, changing pension scheme rules, or every payroll edge case.
This first version assumes the same employee pension percentage and student loan status before and after the pay rise. If the raise changes your pension percentage, run the calculator twice with different assumptions.
For the wider approach, read the WorthMyTime methodology. For important decisions, read the disclaimer.
FAQ
Why is my take-home increase lower than the gross raise?
Income Tax, National Insurance, student loan repayments and pension contributions can all reduce the amount that reaches take-home pay.
Should I include extra hours?
Yes, if the pay rise comes with regular extra hours or responsibilities. A raise can improve annual pay but leave hourly value flatter than expected.
Do student loans affect a pay rise?
They can. If your income is above the relevant plan threshold, part of the pay rise may increase student loan deductions.
Is this personalised financial advice?
No. It is a general estimator to help you understand trade-offs. It does not tell you whether to accept, reject or negotiate a pay rise.