Luxembourg Expat Finance: Your First 90 Days Checklist

Moving to Luxembourg is exciting — but the financial admin can feel overwhelming. Here's a clear 90-day checklist to get everything in order.

Week 1: Register Your Arrival

1. Commune registration — Visit your local commune within 8 days. You'll receive your matricule (national ID number), essential for everything.
2. Residence permit — EU citizens get a certificate of registration; non-EU citizens need a residence permit from the Immigration Directorate.

Weeks 2–4: Banking

• BGL BNP Paribas — English service, good online banking
• ING Luxembourg — Competitive fees, English app
• Spuerkeess — National savings bank, branches everywhere
• N26 / Revolut — Digital options for those who prefer app-only banking

Bring: passport, proof of Luxembourg address, employment contract.

Month 2: Tax & Social Security

1. Register with ACD — your employer handles payroll tax automatically via your matricule
2. CNS registration — Your employer registers you for health insurance
3. CNAP registration — Pension enrollment (automatic via employer)
4. Determine your tax class — Class 1 (single), 1A (single parent), or 2 (married)

Month 3: Optimise

1. Check your tax card — ensure correct class and any deductions
2. Open savings account — Luxembourg has favorable savings rates
3. Review supplementary pension — Consider a 3rd-pillar pension for tax-deductible contributions

Frequently Asked Questions (FAQ)

What are the key rules and thresholds for Luxembourg Expat Finance: Your First 90 Days Checklist in Luxembourg?

Luxembourg applies transparent statutory rules for 2026, incorporating progressive tax brackets (from 0% up to 40%), statutory social contributions (CNS 3.05%, CNAP 8.0%, dependency 1.4%), and official solidarity surcharges (7% or 9%).

How does this impact cross-border workers (frontaliers) and expats?

Cross-border commuters from France, Belgium, and Germany are covered by bilateral double-taxation treaties and agreed telework day limits (up to 34 days annually), while remaining covered under the Luxembourg CCSS social security system.

How can I calculate the exact financial impact for my specific situation?

FinWorldHQ provides free, verified interactive financial calculators tailored to Luxembourg statutory rates. You can test your exact salary, tax class, mortgage payments, or investment returns directly on our platform.