What is Steuerklasse and why it matters
When you start working in Germany, your employer deducts income tax (Lohnsteuer) directly from your salary every month. The Steuerklasse (tax class) is the system Germany uses to determine how much tax to withhold in each payslip.
Getting this right matters from day one: the wrong tax class can mean you are systematically under- or over-paying tax every month. You will eventually reclaim over-payments through a tax return, but that takes a year — and if you are under-paying, you may face a bill.
Your Steuerklasse is assigned by the Finanzamt (tax office) based on your registered civil status. Your employer receives it electronically and uses it to calculate your monthly withholding. You do not need to do anything special to be assigned a class — it happens automatically after Anmeldung.
The six tax classes explained
Germany has six Steuerklassen, numbered I through VI:
Steuerklasse I — Standard for single employees For single people, divorced, widowed, or married people whose spouse lives abroad. This is the default class for most international newcomers arriving without a German spouse. The tax withholding is moderate — neither the highest nor lowest.
Steuerklasse II — Single parents For single parents (Alleinerziehende) who live alone with at least one dependent child. Provides a higher tax-free allowance (Entlastungsbetrag) than class I. You must apply for this — it is not assigned automatically.
Steuerklasse III — Higher-earning married partner For married or civil-partner couples where one partner earns significantly more. Class III has the lowest withholding rate and is paired with class V for the lower-earning partner. The combined effective rate is the same as two class IV payers, but the monthly cash flow is different.
Steuerklasse IV — Default for married couples The automatic class assigned to both partners when a married couple registers in Germany. Both partners pay withholding at roughly the same rate, which works well when incomes are similar.
Steuerklasse V — Lower-earning married partner Paired with class III. The lower-earning partner pays a higher withholding rate than in class IV, but the household overall pays about the same. Only beneficial if the income split is very unequal (roughly 60:40 or more).
Steuerklasse VI — Second job Applied automatically to any second or third employer. Has the highest withholding rate — no tax-free allowance applies. If you have only one employer, you will never be in class VI.
Which class will you get?
For most international newcomers:
- Single, not married: → Steuerklasse I automatically
- Married, spouse also working in Germany: → both get Steuerklasse IV automatically; you can request a switch to III/V if one earns significantly more
- Married, spouse works abroad or not at all: → usually I or III depending on whether you have registered the marriage at the German Standesamt
- Single parent: → I automatically; apply to Finanzamt to move to II
Practical note: Germany's tax system determines your Steuerklasse based on your civil status as registered in the German system. If you got married abroad, you should register your marriage at the local Standesamt — this changes your Steuerklasse from I to IV and is worth doing early.
How to change your Steuerklasse
You can change your Steuerklasse once per year (usually by 30 November for the change to take effect in the following calendar year). In exceptional circumstances (e.g. starting employment, spouse losing their job), changes can be made outside this window.
To request a change:
- Go to your local Finanzamt in person, or use the ELSTER online portal (Germany's digital tax platform)
- Complete the form Antrag auf Steuerklassenwechsel (Application for Tax Class Change)
- Both spouses must agree if the change affects both class III and V
The change takes effect from the beginning of the following month after processing. Your employer is notified electronically — you do not need to tell them separately.
Worth checking: If you are in class I but have a child from a previous relationship or you are a single parent, check whether class II applies to you — the Entlastungsbetrag reduces your monthly withholding noticeably.
Steuerklasse vs. Steuererklärung
These are related but different:
- Steuerklasse determines your monthly withholding — the tax deducted from each payslip
- Steuererklärung (tax return) is the annual settlement — where you declare actual income, deductions, and expenses, and either get a refund or pay additional tax
Most expats in class I who have only one employer and no complex financial situation are not required to file a tax return. But it is almost always worth filing anyway — the average refund in Germany is around €1,000, largely because the monthly withholding in class I is deliberately set conservatively.
If you are in class III/V, you are required to file a return every year, because the combined withholding often underestimates the actual tax owed.
Tax returns can be filed via ELSTER (Germany's free official portal), or through popular apps like Taxfix, Wundertax, or WISO Steuer — all of which have good English-language interfaces.
What to do when you start work
The most important actions around Steuerklasse when you begin a new job in Germany:
- Complete Anmeldung first — your Steuerklasse is assigned based on your registered civil status. Without address registration, there is no electronic record for the Finanzamt to work from.
- Give your employer your Steueridentifikationsnummer (tax ID) — they use this to look up your Steuerklasse electronically. Without it, they must apply the highest rate (class VI).
- Check your first payslip — verify that the Steuerklasse shown matches your actual situation. Errors are rare but easier to fix early.
- If married: decide on III/IV — if you and your spouse have noticeably different incomes, the III/V combination gives you better monthly cash flow. Run the numbers before accepting the default IV/IV.
- File a tax return in year one — even if not required, most newcomers overpay in their first German year due to partial-year income and can reclaim the excess.