Taxes & Social Security: What Comes Off Your Paycheck

Germany's tax and contribution system looks complex at first, but it follows a clear logic.

Tax ID vs. tax number

Your tax ID (Steuer-ID) is a lifelong personal number that everyone registered in Germany automatically receives. Your tax number (Steuernummer), by contrast, is issued by your local tax office and matters mainly for the self-employed and businesses — it can change if you move to a different tax office's district.

The four pillars of social insurance

Employees automatically pay into four social insurance schemes, each roughly split 50/50 between employer and employee:

• Health insurance — covers doctor visits, hospital stays, and medication
• Pension insurance — the basis for your future statutory pension
• Unemployment insurance — replaces part of your income if you lose your job
• Long-term care insurance — covers costs if you need long-term nursing care

Together these contributions make up a substantial, but clearly regulated, share of your gross salary — the exact percentages are adjusted periodically.

Tax return (Steuererklärung)

Filing an annual income tax return is mandatory under certain circumstances — for example if you're self-employed, have multiple income sources, or (for married couples) use certain tax-class combinations such as III/V. In many other cases it's voluntary, but often results in a refund. The regular deadline is usually 31 July of the following year — using a tax advisor extends that deadline significantly.

For more complex situations (multiple income sources, property, investment income), it's worth consulting a tax advisor (Steuerberater) or a wage tax assistance association (Lohnsteuerhilfeverein).