Germany's income tax system works fundamentally differently from bracket-based systems like the US or UK — instead of fixed brackets, the rate rises smoothly along a continuous mathematical formula, with no sudden jumps at threshold points.
The Grundfreibetrag (basic tax-free allowance)
The Grundfreibetrag for 2026 is €12,348 — income up to this amount is entirely tax-free, similar in concept to a personal allowance or standard deduction elsewhere, though structured as a genuine zero-rate zone rather than a deduction from taxable income.
How the smooth formula works
Between the Grundfreibetrag and €68,429, the marginal rate rises continuously from 14% to 42% using a quadratic formula defined in §32a of the German income tax law (EStG) — rather than jumping between fixed rates at fixed thresholds the way many other countries' systems work. Above €68,429, the rate holds flat at 42% up to €277,826, then rises to 45% above that (the "wealth tax" rate, or Reichensteuer).
The solidarity surcharge (Soli)
A 5.5% surcharge applies on top of income tax, but only once your income tax bill itself exceeds €20,350 — a threshold that, since 2021 reforms, excludes roughly 90% of German taxpayers from paying Soli at all. Originally introduced to help fund reunification-related costs, it now functions as a surcharge primarily on higher earners.
What this doesn't include
Social security contributions (pension, health, unemployment, and long-term care insurance combined) run roughly 20% of gross income and are calculated separately from income tax and Soli. Church tax (Kirchensteuer), an additional 8-9% of your income tax bill, applies only if you're a registered member of a church that levies it — deregistering removes this obligation. Married couples also benefit from income-splitting (Ehegattensplitting), which can meaningfully reduce combined tax for couples with significantly different individual incomes.
Get an approximate estimate of your income tax and Soli with the Germany Income Tax Calculator, and use the official BMF calculator for a filing-accurate figure.