Withholding is the tax class
German payroll doesn’t estimate your annual tax and spread it out; the tax class itself defines how much Lohnsteuer is withheld each month. For a single employee with one job and no other income, that withholding is usually the final tax. Couples in III/V, people with side income, and anyone with large work expenses settle up through the annual income tax return (Einkommensteuererklärung), which can produce a refund or a bill.
Sixteen states, two differences
Income tax and social insurance are federal, so the state you live in changes only two things: the church tax rate (lower in Bavaria and Baden-Württemberg) and the care insurance split in Saxony, where employees pay 2.3% instead of 1.8% because Saxony kept a public holiday the other states gave up to fund care insurance.
Contribution ceilings
Above €5,812.50 a month, health and care contributions stop rising, and above €8,450 pension and unemployment contributions stop too. That is why the marginal deduction rate falls for higher salaries even though income tax keeps climbing. High earners above the compulsory insurance limit can choose private health insurance; enter the premiums under More options.
Thirteenth salary and bonuses
Christmas bonuses and a 13th month’s pay are taxed as “other payments” under a separate method in the PAP and are not modelled here. To see a year with a bonus, enter the annual total as an annual salary — the tax will be close but not identical to what your payroll withholds.