Luxembourg salary calculator 2025: take-home pay after tax and social security
This free Luxembourg salary calculator turns your gross salary into your real take-home pay (salaire net) for 2025. It shows your pay after social security and income tax, including the solidarity surcharge and the automatic CIS and CI-CO2 employee tax credits, down to the monthly figure. Every rate comes from official sources, the Administration des contributions directes (ACD) for the tax scale and the CCSS for social security, and you can see exactly how each number is worked out.
How your Luxembourg take-home pay is calculated
First, social security (pension 8%, health 3.05%, dependency 1.40%) is deducted. Income tax is then charged on your salary after the deductible social security and the 540 euro frais d'obtention, on the progressive 0% to 42% scale (which depends on your tax class), plus a 7% surcharge. The CIS and CI-CO2 credits are then added back.
| 2025 deduction (employee) | Rate | Notes |
|---|---|---|
| Social security | ~12.45% | pension + health + dependency |
| Income tax | 0% to 42% | Class 1 or Class 2 (splitting) |
| Solidarity surcharge | 7% / 9% | on the income tax |
| CIS + CI-CO2 credits | up to €792 | added back to pay |
€45,000 after tax in Luxembourg (Class 1, 2025)
A single person (Class 1) on 45,000 euros takes home about 35,815 euros a year: about 5,492 of social security and 4,386 of income tax and surcharge, less 693 of employee tax credits. In Class 2 (married, joint) the same salary keeps noticeably more thanks to income splitting. Enter your own salary and tax class above, or switch to Net to Gross to work back from a take-home figure.
Frequently asked questions
- Is this Luxembourg salary calculator free?
- Yes. It's completely free, with no sign-up. Enter your gross salary and it shows your take-home pay for 2025 after social security and income tax (with the solidarity surcharge and the automatic employee tax credits), using official ACD and CCSS figures, for tax Class 1 and Class 2.
- How is take-home pay calculated in Luxembourg?
- Social security (pension 8%, health 3.05% and dependency 1.40%) is deducted first. Income tax is then charged on your salary after the deductible social security and the 540 euro frais d'obtention, on the progressive 0%-42% scale, plus a 7% solidarity surcharge. Finally, the automatic employee tax credits (CIS and CI-CO2) are added back, since they are credited through payroll. Take-home = gross minus social security minus income tax (with the surcharge, less the credits).
- How much is €45,000 after tax in Luxembourg (Class 1)?
- For 2025, a single person (Class 1) on 45,000 euros takes home about 35,815 euros a year (roughly 2,985 euros a month): about 5,492 of social security and 4,386 of income tax and surcharge, less 693 of employee tax credits (CIS 525 + CI-CO2 168). Some calculators show around 35,117 because they leave out those automatic credits; we include them, so our figure is higher and more accurate.
- What is the difference between Class 1 and Class 2?
- Your tax class is the biggest factor in Luxembourg. Class 1 is for single people, with the scale applied directly. Class 2 is for married couples and registered partners taxed jointly: it uses income splitting (the tax is worked out on half the income and doubled), which usually lowers the tax considerably on a single income. Class 1a (single parents and over-64s) is a separate, partial-splitting class that we do not yet model.
- What are the CIS and CI-CO2 tax credits?
- The CIS (crédit d'impôt salarié) is an automatic employee tax credit of up to 600 euros a year, tapering to nil at 80,000 euros of salary. The CI-CO2 is a further credit of up to 192 euros. Both are credited through your monthly payroll, so they increase your real take-home pay. They are also refundable, so at low salaries they can exceed the tax due.
- How much is social security in Luxembourg?
- For an employee, social security is pension 8% and health 3.05% (both deductible and capped at five times the social minimum wage), plus dependency insurance of 1.40% (not deductible, with no ceiling, charged after a roughly 7,913 euro abatement). That is about 12.45% of salary in total for most incomes.
- What is and isn't included?
- Included: pension, health and dependency social security; the 540 euro frais d'obtention; the 2025 income tax scale; the 7% (or 9%) solidarity surcharge; and the automatic CIS and CI-CO2 credits, for Class 1 and Class 2. Not included: Class 1a, the extra-professional abatement for two-earner couples, commuting expenses and other personal deductions. Estimates only, not tax advice.