Tax
Estimate the incremental 2026/27 take-home effect of adding a bonus to salary.
Calculator currency
This rule-sensitive calculator is fixed to GBP (UK 2026/27) for England, Wales and Northern Ireland.
FinTrex result
UK Bonus Tax Impact
Estimated net increase from bonus
£2,938
Estimated bonus deductions
£2,062
Net share of gross bonus
58.8%
What changes this most?
Incremental bonus deductions can differ from your average tax rate because tax bands are progressive.
Sensitivity check
A roughly 10% move in gross annual salary before bonus changes the modeled headline result by up to £662 in this setup.
Educational 2026/27 estimate for standard England/Wales/Northern Ireland PAYE-style Income Tax and employee NI. Actual payroll timing and tax codes can change deductions.
Use the number fields, sliders, or a quick preset. You can fully clear a field while editing.
Formula
The bonus impact equals 2026/27 estimated take-home with salary + bonus minus estimated take-home on salary alone.
Rule context
Reviewed against: GOV.UK 2026/27 Income Tax and National Insurance rates (verified 21 Aug 2026)
Adjust one assumption at a time to understand which inputs have the greatest effect. Compare several realistic scenarios rather than relying on a single projection.
Default assumptions are maintained by FinTrex and may not reflect current products or rates available to you. Review every input before using the estimate.
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