A complete, practical guide for newcomers: tax classes, income tax, social contributions, refunds, and deductions. German Tax System for Immigrants Why Taxes Can Make or Break Your Life in Germany Every year, thousands of immigrants in Germany lose money, face unexpected debts, or even legal trouble — not because they earn too little, but because they don’t understand how the German tax system works. A wrong tax class, a missed declaration, or ignoring a simple allowance can