Luxembourg tax and payroll guide
This guide explains how taxes and payroll deductions work in Luxembourg: income tax brackets, mandatory social contributions, employer-side costs, and how personal or regional settings affect your take-home pay.
Quick read
Latest supported year: 2026
Use the year selector in the calculator to model different tax periods - useful for checking a past payslip or planning ahead.
National rules
Where payroll rules vary by region, the model includes separate rule sets. Select your region in the calculator to apply local rates.
Designed for employment income
The calculator models salary, income tax, social contributions, and employer-side costs. Self-employment and freelance tax filing are outside the current scope.
Currency
EUR
The calculator and charts display amounts in the local currency.
Available Years
2024-2026
Supported years are visible before you open the interactive tool.
Subdivisions
National rules
Regional models appear where payroll rules differ below the national level.
Privacy Status
Browser-based
Salary inputs stay local while the calculator runs on the client.
- Progressive income tax - brackets, thresholds, and effective rate
- Mandatory social contributions - pension, health, unemployment, and similar
- Employer-side payroll costs and total cost of employment
- VAT and consumption tax analysis via the budget planner
- Tax Freedom Day - the date your income stops going to tax
- Self-employment and freelance income are not in scope - this tool is for employment salary
- Highly personal or rarely claimed tax credits are not fully modelled
- Wealth, inheritance, and gift taxes are not covered
- Complex fringe benefits such as company cars or equity grants are not modelled
- Frontalier (cross-border commuter) specific tax provisions and exemptions are not modelled.
- Dependent spouse credit (dégrèvement conjugal) is not in scope for class 1a splitting.
- Boni pour enfant (child benefit) is administered separately and is not included in the payroll calculation.
How to read the model
How NettoFlow breaks down pay in Luxembourg
NettoFlow models the main tax and payroll layers for Luxembourg: progressive income tax brackets, mandatory social contributions, employer-side costs, and regional rules where they apply. This section explains what each layer means in practice and which calculator inputs will change your result.
Income tax structure
Tax years, bracket thresholds, and filing logic decide how quickly gross salary turns into taxable income. Germany's 42% bracket begins at €68,480; Switzerland's combined cantonal and federal rates can exceed 30%. In the UK, the 40% higher rate starts at £50,270.
- €0.00 – €13,249.00: 0%
- €13,250.00 – €15,449.00: 8%
- €15,450.00 – €17,649.00: 9%
- €17,650.00 – €19,849.00: 10%
- €19,850.00 – €22,099.00: 11%
- €22,100.00 – €24,299.00: 12%
- €24,300.00 – €26,599.00: 14.0%
- €26,600.00 – €28,849.00: 16%
- €28,850.00 – €31,149.00: 18%
- €31,150.00 – €33,449.00: 20%
- €33,450.00 – €35,749.00: 22%
- €35,750.00 – €38,049.00: 24%
- €38,050.00 – €40,349.00: 26%
- €40,350.00 – €42,649.00: 28.0%
- €42,650.00 – €44,949.00: 30%
- €44,950.00 – €47,249.00: 32%
- €47,250.00 – €49,549.00: 34%
- €49,550.00 – €51,799.00: 36%
- €51,800.00 – €54,099.00: 38%
- €54,100.00 – €117,499.00: 39%
- €117,500.00 – €176,199.00: 40%
- €176,200.00 – €234,899.00: 41%
- €234,900.00+: 42%
Payroll contributions
Pension, health, unemployment, and employer-side payroll costs change both take-home pay and full employment cost. In France, total employee social contributions can exceed 22% of gross salary alone. In Switzerland, BVG pension contributions are age-banded - rates rise significantly in your 40s and 50s.
Local and personal settings
Regions, household status, children, or local surcharges can move the result materially even within the same country. A German married couple switching from Tax Class I to Tax Class III can gain several hundred euros per month. In the US, choosing Married Filing Jointly instead of Single shifts both bracket thresholds and the standard deduction.
Luxembourg Settings
Tax Class
Use this setting when tax or payroll rules depend on your personal situation. It can change thresholds, reliefs, contribution rates, or the way salary tax is assessed.
- Class 1: default single salary table
- Class 1a: reduced burden for eligible single-parent / senior households from €0.00
- Class 2: joint taxation with top salary band above €470,800.00
- Class 1 top salary band above: €235,900.00
Income Tax
Progressive tax rates based on official tax law
- CIS: €600.00
- CI-CO2: €216.00
- CIS full up to: €40,000.00
- CI-CO2 full up to: €40,000.00
- CISSM: €972.00
- CIS minimum income: €936.00
- CIS phase-out ends: €80,000.00
- CI-CO2 phase-out ends: €80,000.00
- Employment Fund Surcharge: 0.07%
- High-income surcharge above: €151,020.00 / 0.09%
Social Security Contributions
Employee social security contributions with rate limits
- Contribution Ceiling (Hoechstbeitragsgrundlage) (monthly): €13,518.68
- Contribution Ceiling (Hoechstbeitragsgrundlage) (annual): €162,224.16
- Dependency abatement (annual): €8,111.16
- Pension Insurance: 8.5%
- Health Insurance: 3.05%
- Employers' mutual insurance: 0.95%
- Occupational health: 0.14%
Salary-credit taper
Use this setting when tax or payroll rules depend on your personal situation. It can change thresholds, reliefs, contribution rates, or the way salary tax is assessed.
- CISSM monthly gross starts: €1,800.00
- CISSM plateau ends: €3,000.00
- CISSM phase-out ends: €3,600.00
- CIS phase-in base: €300.00
- CIS phase-in ends: €11,265.00
Tax year changes
What changed in 2026 - Luxembourg
Key updates to the Luxembourg tax and payroll model for 2026. These are the changes most likely to affect a standard employment salary calculation.
- Salary withholding scales (barème) carried forward from 2025 — no enacted 2026 updates to salary tables at time of writing.
- Social contribution ceiling raised to LU €13,518.68/month.
- Pension contribution rate unchanged at 8.5% employee / 8.5% employer.
Calculator glossary
What the inputs mean for Luxembourg
These are the main input fields you will encounter when configuring Luxembourg in the calculator. Payroll is not determined by gross salary alone - the guide explains each additional field and why it matters for an accurate result.
Gross Salary
Enter the gross pay before taxes and contributions. This is the starting point for net salary, employer cost, and comparison views.
Year
Select the tax year that matches the payslip or scenario you want to model. Thresholds, brackets, and contribution limits can change from year to year.
Tax Class
Use this setting when tax or payroll rules depend on your personal situation. It can change thresholds, reliefs, contribution rates, or the way salary tax is assessed.
Capital Gains
Use this field when you want to estimate salary and investment income in the same scenario. Capital-gains rules are often narrower than salary-tax rules.
Luxembourg tax class
Use the class shown on your Luxembourg tax card.