Progressive Tax Bracket Calculator
Under a progressive tax system you don’t pay the same rate on your entire income: only the part above a threshold falls into the higher bracket. Enter your income and the current bracket thresholds — found at your tax authority — for a calculation.
Result
£30,137.59
Total tax
- Average rate
- 37.67%
- Marginal rate
- 49.5%
How this was calculated
- 1Tax over first bracket£75,518.00 × 36.97% = £27,919.00
- 2Tax over second bracket£4,482.00 × 49.5% = £2,218.59
Formula
Tax = (min(income,threshold) × rate 1) + (max(0,income−threshold) × rate 2)
The part of your income up to the bracket threshold is taxed at the first rate; only the part above it at the second, higher rate. That is why your "marginal rate" (the rate on your last euro earned) can be higher than your "average rate" (total tax divided by total income).
Worked examples
€ 80,000 income, threshold € 75,518, rates 36.97% / 49.5%
→ Tax ≈ € 30,225, average rate ≈ 37.8%.
Common mistakes
- Assuming your entire income is taxed at the top rate the moment you cross the threshold.
Important to know
- The default values are an example, not current tax brackets. Always check current rates and thresholds with your tax authority.
When to use it
- Estimating the effect of a pay rise on your tax burden.
Frequently asked questions
Why aren’t the default values current?
Tax brackets change every year. This calculator teaches the calculation method; enter the current figures yourself for a correct result.
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