Tax Estimator
Estimate your Luxembourg income tax, effective and marginal rate.
Estimated tax
Effective rate
Marginal rate
Net after tax
Employment-fund surtax
Salary tax credit (CIS)
Estimate only — a simplified Luxembourg model, not tax advice.
Your rate across income
Effective vs marginalQuick insights
3 newComputed from your inputs · no account dataYour marginal rate is 39%
Each extra euro is taxed at 39%, while your average (effective) rate is 20%.
A €1,000 deduction saves ~€390
At your 39% marginal rate, every deductible euro cuts your tax by that share.
Salary tax credit applied
A CIS of €490 is included — it lowers the tax an employee owes.
How this works
We apply the Luxembourg progressive scale for your tax class (with the splitting method for class 2), then add the employment-fund surtax and subtract the salary tax credit.
The effective rate is your total tax over income; the marginal rate is what the next euro is taxed at. The curve shows both across income.