Changing Tax Class as a Married Couple: Guide and Tips for 2026
February 10, 2026
Tax Classes in Germany: An Overview
Germany has six tax classes (I to VI) that determine how much income tax is deducted from gross salary each month. For married couples, choosing the right tax class is particularly important as it can significantly affect monthly net income.
The Six Tax Classes
| Tax Class | For Whom? | |-----------|----------| | I | Single, divorced, widowed | | II | Single parents | | III | Married (higher earner) | | IV | Married (equal income) | | IV with factor | Married (individual distribution) | | V | Married (lower earner, partner in III) | | VI | Second job |
After marriage, both partners are automatically assigned to Tax Class IV. A change to a different combination must be actively requested.
When Should Married Couples Change Tax Class?
1. After Marriage
Newly married couples should check whether the automatic IV/IV assignment is optimal, especially with different income levels.
2. Income Differences
If one partner earns significantly more, the III/V combination can increase monthly net income.
3. Before Having a Child
Parental allowance (Elterngeld) is calculated based on net salary. The partner taking parental leave should switch to Tax Class III at least 7 months before maternity protection begins.
4. Unemployment or Short-Time Work
Unemployment benefits and short-time work allowance are based on net salary.
Three Combinations for Married Couples
III/V Combination
IV/IV Combination
IV/IV with Factor
How to Change
Via ELSTER
1. Log in at elster.de 2. Navigate to "Forms & Services" → "Income Tax" 3. Select the tax class change application form 4. Both spouses must sign with their ELSTER certificate 5. Submit and wait for confirmation (2-4 weeks)
At the Tax Office
1. Download the form from formulare-bfinv.de 2. Both spouses fill in and sign the form 3. Submit by post or in person to the local tax office
FAQ
How long does the change take?
Typically 2-4 weeks. The change takes effect from the month after processing.
Can I change retroactively?
No, except in the year of marriage.
Which tax class for parental leave?
The partner taking parental leave should switch to Class III at least 7 months before maternity protection begins.
Learn more: Tax return with ELSTER | Buergergeld 2026