Luxembourg · 2025
Luxembourg Income tax calculator
Estimate the income tax a single resident pays on a Luxembourg salary in 2025. Enter your annual gross pay and the calculator converts it to taxable income the way the tax office does, then runs it through the 23-band class 1 scale and adds the employment fund surcharge. The result is the year of income tax on its own. Social insurance is a separate cost; the salary calculator shows the two side by side if you want the full payslip picture.
| Deductible contributions (pension and health) | 5.525,00 € |
| Standard allowances | 1.020,00 € |
| Taxable income | 43.455,00 € |
| Tax from the class 1 scale | 5.210,10 € |
| Employment fund surcharge | 364,71 € |
| Income after tax | 44.425,19 € |
How it works
- Gross pay is not what Luxembourg taxes. Pension (8%) and health (3.05%) contributions are deductible, so the calculator strips them out first, capping the base at EUR 13,518.68 a month, the ceiling at which both contributions stop.
- It then removes the two standard allowances every employee receives automatically: EUR 540 for employment expenses and EUR 480 for special expenses.
- What remains is taxable income. The class 1 scale charges nothing on the first EUR 13,230, then climbs through narrow bands (8% up to 42%) until the top rate starts at EUR 234,870.
- The scale result is topped up for the employment fund: 7% of the tax bill, and 9% on the part of the bill that belongs to taxable income above EUR 150,000.
- The figure shown is the annual tax before payroll credits such as the CIS, which the tax office pays out through withholding rather than through the scale.
income tax = scale(taxable) + surcharge, taxable = gross - pension - health - 1,020
Deductible contributions of 8% pension and 3.05% health are removed from gross pay, on at most EUR 162,224.16 a year of pay, followed by the EUR 1,020 of standard allowances. The 23-band class 1 scale is applied to the remainder, charging each band at its own marginal rate. The employment fund then adds 7% of the resulting tax, switching to 9% for the portion of tax attributable to taxable income beyond EUR 150,000.
- scale
- class 1 tarif de base 2025, marginal rates from 0% to 42% across 23 bands
- surcharge
- employment fund top-up of 7%, or 9% above EUR 150,000 of taxable income
- 8% / 3.05%
- deductible pension and health contributions, capped at EUR 13,518.68 a month of pay
- 1,020
- EUR 540 employment expense plus EUR 480 special expense standard allowances
Income tax with surcharge at key taxable incomes, class 1
| EUR 13,230 taxable | EUR 0 | top of the tax-free band |
| EUR 54,090 taxable | EUR 9,479.77 | where the long 39% band starts |
| EUR 117,450 taxable | EUR 35,919.90 | where the 40% band starts |
| EUR 150,000 taxable | EUR 49,851.30 | surcharge rises from 7% to 9% beyond this point |
| EUR 234,870 taxable | EUR 87,494.56 | where the 42% top rate starts |
Worked example
A single resident earning EUR 50,000 gross in 2025 has EUR 4,000 of pension and EUR 1,525 of health contributions plus EUR 1,020 of allowances taken off, leaving EUR 43,455 taxable. The class 1 scale charges EUR 5,210.10 on that, and the 7% employment fund surcharge of EUR 364.71 lifts the total to EUR 5,574.81.
Key facts
- A gross salary of roughly EUR 16,000 attracts no income tax at all, because the deductible contributions and allowances pull taxable income under the EUR 13,230 tax-free band.
- The scale has 23 bands, most of them only EUR 2,205 to EUR 2,295 wide, so marginal rates rise fast at modest incomes.
- One band breaks the pattern: 39% applies across the long stretch from EUR 54,090 to EUR 117,450 of taxable income.
- With the surcharge, every headline rate is 7% higher in effect: the 39% band really costs 41.73%, and the 42% top rate becomes 45.78%.
- Because pension and health contributions are deductible, each euro of gross pay below the ceiling adds only about 89 cents to the taxed base.
Tips
- A personal pension contract under article 111bis lets you deduct up to EUR 3,200 a year, saving tax at your highest marginal rate.
- The EUR 540 employment expense allowance is a floor, not a cap. Filing a return with evidence of higher real costs replaces it with the actual amount.
- The same goes for special expenses: insurance premiums and loan interest above the EUR 480 minimum are deductible through a return.
- Marrying or registering a partnership usually moves you to class 2, where joint taxation can cut the bill sharply when incomes are unequal.
Frequently asked questions
Why does the calculator ask for gross salary instead of taxable income?+
Because most people know their gross pay, not their taxable income. In Luxembourg the two differ by the deductible pension and health contributions and the EUR 1,020 of standard allowances, so the calculator performs that conversion before applying the scale. The taxable figure it derived is shown in the breakdown.
Which tax class do the figures assume?+
Class 1, the scale for a single resident without dependent children. Class 1a (single parents and taxpayers over 64) and class 2 (jointly taxed couples) are charged less on the same income because their scales spread the burden differently. A planned reform would merge the classes, but not before 2028 at the earliest.
What is the employment fund surcharge?+
A levy that finances unemployment policy, charged as a percentage of the income tax itself rather than of income. For class 1 it is 7% of the bill, rising to 9% on the slice of tax that corresponds to taxable income above EUR 150,000. It is the reason the headline 42% top rate works out at 45.78% in practice.
Are social insurance contributions included in the result?+
No. The primary figure is income tax alone. Pension and health contributions only appear because they reduce taxable income before the scale applies; the contributions themselves, and the 1.4% dependency contribution, are separate deductions that the salary calculator covers.
My payslip withholding is lower than this. Why?+
Probably the payroll tax credits. The employee credit (CIS, worth up to EUR 600 a year) and the CO2 credit (up to EUR 192) are paid out through monthly withholding and taper away between EUR 40,000 and EUR 80,000 of gross pay. A commuting allowance on your tax card would lower withholding further. None of these change the scale tax shown here; they sit on top of it.
Things to watch
- This is an estimate for orientation, not tax advice. Confirm your own liability with the Administration des contributions directes or a qualified adviser before acting on it.
- Payroll credits are excluded, so actual withholding below EUR 80,000 of gross pay is typically up to EUR 792 a year lower than the tax shown.
- The figures assume salary is your only income. Rental, investment or foreign income is added to the same scale and raises the bill.
- Cross-border commuters are withheld on the same basis, but the country of residence may claim a top-up under the applicable treaty.
Sources
- Tarif de base applicable aux personnes physiques · Administration des contributions directes
- Fonds pour l’emploi (majoration de l’impôt) · Administration des contributions directes
- Paramètres sociaux valables au 1er mai 2025 · IGSS
- Paramètres sociaux · CCSS
- CIS et CI-CO2 salarié pour l’année d’imposition 2025 · Administration des contributions directes
Last updated: 2025-05-01 · Applies to 2025
This is an estimate for general guidance, not financial, tax, legal or medical advice. Figures can change and individual circumstances vary. Always confirm with the official sources listed before making decisions.
- Class 1 only: a single resident whose only income is the salary entered. Other classes and other income types change the result.
- Taxable income is derived using the social parameters in force from 1 May 2025 (index 968.04) for the whole year.
- The dependency contribution is ignored in the derivation because it is not deductible from taxable income.
- Tax is computed with a continuous formula. The official withholding tables work in income steps, so a payslip can sit a few euros either side.
- The CIS, CI-CO2 and minimum wage credits are excluded; they reduce withholding, not the scale tax shown here.
Reviewed by Vikas Dulgunde.