Tax and NI on a pay rise calculator UK
Measure deductions and retained pay on a specified increase in annual salary. Check the formula, worked example and limits before using your own figures.
Enter your figures
Tax and NI on the entered rise
Inputs changed. Select Calculate result to update your estimate.
Use your actual figures. Any prefilled price, fee, rate or return is an editable illustration, not a current product quote. Annualised 2026/27 category A model only. This is an average over the entered increase, not necessarily the infinitesimal marginal rate. Benefits, loans and pensions are excluded.
How the tax and ni on a pay rise calculator uk works
Compare total annual Income Tax and NI before and after the increase; divide extra deductions by the increase.
UK data and rules
2026/27 data · Checked 16 October 2026. Rules are a dated snapshot, not a live feed.
- HMRC — Income Tax rates and allowances
- HMRC — Scottish Income Tax
- HMRC — 2026/27 employer rates and thresholds
Read about data coverage and updates
Worked example: tax and ni on a pay rise
This illustration uses the calculator’s example inputs. It is not a quote or a recommended financial decision.
- Current annual salary (£)
- 50,000
- Annual gross pay rise (£)
- 3,000
- Country for tax purposes
- England
Tax and NI on the entered rise: 40.74%
Compare total annual Income Tax and NI before and after the increase; divide extra deductions by the increase.
Tax and NI on a pay rise: questions answered
What does the tax and ni on a pay rise calculation include?
Compare total annual Income Tax and NI before and after the increase; divide extra deductions by the increase. Use your actual figures. Any prefilled price, fee, rate or return is an editable illustration, not a current product quote. Annualised 2026/27 category A model only. This is an average over the entered increase, not necessarily the infinitesimal marginal rate. Benefits, loans and pensions are excluded.
Using your result
Example inputs are a starting point. Replace them with your figures and select Calculate result. Results are rounded for display; calculations use unrounded values.
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