Let’s face it — tax isn’t the most exciting topic. But if you’re an international student working in Germany, understanding how the system works can help you avoid surprises and even save money.
Here’s a breakdown of the German tax classes (Steuerklassen) and what they mean for international students working in Germany.
What Are Tax Classes?
These classes are assigned by the local Finanzamt (tax office) once you register your address in Germany. Employers use your tax class to calculate how much tax you owe each month.
For example, most single, childless employees — including international students — are placed in Tax Class I by default.
Understanding the Classification System
If your situation changes — for example, you get married or have children — your tax class may be adjusted accordingly. For students working part-time or preparing for full-time employment after graduation, understanding which class applies to you is key to managing your finances effectively.
What Are the Tax Classes in Germany?
Here is a clear explanation of the six German tax classes (Steuerklassen) and what they mean for different personal situations:
Tax class I applies to most international students. It includes individuals who are single, divorced, widowed, permanently separated from their spouse, unmarried pensioners, or married persons whose spouse does not reside in Germany and therefore has limited tax liability. The current basic tax-free allowance (Grundfreibetrag) is €12,096 per year, meaning if your income stays below this threshold, you are not required to pay income tax.
Tax class II is for employed single parents who live alone with at least one child and receive child benefits (Kindergeld). It provides additional tax relief compared to tax class I, but individuals must meet specific requirements and apply for this classification.
Tax class III is designed for married couples or registered partners where one spouse earns significantly more than the other. In such cases, the higher-earning partner is assigned to tax class III, while the lower-earning partner is placed in tax class V. This combination allows the couple to optimise their joint tax burden.
Tax class IV is typically assigned to married couples who have similar levels of income. It ensures that both partners are taxed fairly and evenly, and many couples choose this class for balanced tax treatment.
Tax class V is the counterpart to tax class III and is assigned to the lower-earning spouse when their partner is classified under tax class III. Although it results in higher tax deductions for the lower earner, the overall household tax burden can be reduced when the income gap between spouses is significant.
Tax class VI is assigned to individuals who have more than one job. The second (or additional) employer does not apply the basic tax-free allowance (Grundfreibetrag) to the additional income, resulting in higher tax deductions on that salary. This class is often temporary and relevant for people working multiple part-time or freelance roles.
How Tax Classes in Germany Affect Your Salary?
You might not think about it often, but your tax class shapes every single payslip. It decides how much Lohnsteuer comes out of your gross pay before it ever reaches your bank account, alongside the solidarity surcharge and, if it applies to you, church tax.
For couples, tax classes in Germany III and V work as a pair. The higher earner takes class III (meaning lower monthly deductions), while the lower earner takes class V (higher deductions). It looks lopsided month to month, but it’s designed to even out at tax return time. In contrast, class IV/IV splits things evenly from the start, which is helpful in cases where partners earn roughly the same.
For most international students, though, this is simpler. Sitting in tax class 1 means your monthly deductions are calculated on your own income alone, with the basic tax-free allowance built in. As long as you stay under that threshold, no Lohnsteuer gets withheld in the first place. Cross it, and your employer starts deducting tax automatically, leading to no extra paperwork on your end.
How Often do Tax Classes in Germany Change?
In Germany, employees are not permanently bound to their assigned tax class. Under certain conditions, they can switch to a different class to better align with their financial situation. Changing tax classes can benefit employees in various scenarios, such as a salary increase, job loss, or when aiming to optimise the overall tax burden within a household.
So, when can employees switch tax classes?
- Marriage: Newlyweds are initially assigned to tax class IV. However, they can switch to the III/V combination if one spouse earns significantly more than the other.
- Divorce: After a divorce, both partners must switch from class III/V or IV to tax class I. If one parent is living alone with a child and receiving child benefits, they may qualify for tax class II.
- Death of spouse: The surviving spouse remains in tax class III for the rest of the calendar year in which their partner passed away. In the following year, they are reassigned to tax class I or II (if they are a single parent).
- Change in income: Couples experiencing a significant change in income may choose to switch from class IV to III/V or vice versa in order to optimise their tax deductions based on the new income distribution.
- Unemployment or parental leave: If one partner stops working or has a considerable drop in income — for example, due to unemployment or parental leave — switching to the III/V combination may reduce the overall household tax burden.
How to Choose the Right Tax Category in Germany?
In most cases, the Finanzamt will automatically assign you a class based on your marital status. But choices do exist, usually if you’re married. So, it’s worth knowing what you’re picking between.
Newly married couples are automatically placed in class IV/IV. If a partner earns significantly more, switching to III/V could mean a greater monthly take-home for the higher earner, while the lower earner absorbs more deductions. It doesn’t change the total tax owed, but it changes when you pay it. Couples can also request “the factor method” (Faktorverfahren), which splits the tax burden more precisely based on each partner’s income.
As a general rule, if your household income is close to equal, IV/IV keeps things straightforward. If there’s a large gap, III/V usually makes more sense for monthly cash flow. But either way, switching classes means a conversation with your local Finanzamt.
Tax Classes in Germany for International Students
If you’re an international student working alongside your studies, there’s a good chance you’ve never had to think about any of this. Most students have no dependents and tend not to be married, which will place them straight into tax class 1 in Germany the moment they register their address (Anmeldung) and receive a tax ID.
This matters because class I comes with the basic tax-free allowance already factored in. Earn below that threshold across the year, and you won’t pay income tax on it at all. Go over it, and your employer starts withholding tax as normal.
One thing to watch: if you take on a second job at the same time, that additional income typically falls under tax class VI, which doesn’t get the tax-free allowance applied and is taxed more heavily from the first euro. Check with your local Finanzamt or a tax adviser before juggling multiple part-time roles, especially if you’re also managing visa-related working-hour limits.
Study in Germany Today!
Now that you’ve mastered the basics of the German tax system, it’s time to focus on your future and find a university that can help you reach your personal and professional goals.
The University of Europe for Applied Sciences (UE) offers a wide selection of state-recognised degree programmes and certificates across diverse industries — from business and sport to tech and software.
With campuses in Berlin, Potsdam, Hamburg and Iserlohn in Germany, as well as an international campus in Dubai, UE delivers high-quality, practice-oriented education to students from around the world.
Take the next step toward your personal and professional goals. Explore your options and find the right programme for you at UE today by finding your perfect programme here.