German law treats two internships that look identical from the outside completely differently. Whether yours is pflicht (mandatory) or freiwillig (voluntary) changes what you must be paid and, if you are a non-EU student, how it interacts with your residence permit.
Students routinely find this out after signing.
Pflichtpraktikum: required by your programme
A Pflichtpraktikum is an internship your study regulations require. The test is documentary: your Studien- oder Prüfungsordnung mandates it, and your university will confirm this in writing.
Minimum wage: a mandatory internship is exempt from the statutory minimum wage. Legally it can be unpaid. In practice many companies pay something, and in engineering and IT the amounts can be reasonable, but they are not obliged to.
Residence permit (non-EU students): because it is formally part of your studies, a mandatory internship generally does not count against the annual work-day allowance on your student permit. This is a significant advantage and the reason mandatory internships are attractive for non-EU students specifically.
Proof you will need: a written confirmation from your university that the internship is required. Employers ask for it, and so may the Ausländerbehörde.
Freiwilliges Praktikum: your own initiative
A voluntary internship is one you arrange because you want to, with no programme requirement behind it.
Minimum wage: the rules turn on duration and purpose.
- Longer than three months: statutory minimum wage generally applies for the whole period.
- Up to three months, for orientation before or alongside training or study: generally exempt.
- Short taster internships: typically exempt.
The three-month line is the one to watch. An internship structured at exactly three months, or one that quietly extends past it, has real consequences either way.
Residence permit (non-EU students): a voluntary internship is ordinary work. It counts against your annual work-day allowance, whether or not it is paid. An unpaid voluntary internship still uses up your days, which surprises a lot of students.
The comparison
| | Pflichtpraktikum | Freiwilliges Praktikum | | --- | --- | --- | | Required by your programme | Yes | No | | Minimum wage applies | No | Yes if over 3 months | | Counts against work-day allowance (non-EU) | Generally no | Yes | | University confirmation needed | Yes | No | | Typical length | Set by your programme | Your choice |
The trap
The one that catches people: a non-EU student taking a long unpaid voluntary internship. You get no pay, and you burn a large part of your annual work-day allowance, which then constrains your paid work for the rest of the year.
If you are non-EU and considering a voluntary internship, do the arithmetic on days before you agree to anything. And if your programme has a mandatory internship requirement, use it — that is the version that does not cost you days.
Which is worth taking?
The legal category matters less than what you actually do during it.
A well-structured internship where you own a piece of real work and finish it gives you a project to talk about, a reference, and often an offer. A badly-structured one gives you three months of low-value tasks and a certificate saying you attended.
Questions worth asking before you accept:
- What would I work on specifically, and would I own something end to end?
- Who supervises me, and how often?
- What did the last intern go on to do?
- Will I get a qualified Arbeitszeugnis at the end?
That last one matters more than international students realise. A German Arbeitszeugnis is a formal reference document with its own conventions, and a good one is a real asset in later applications. Ask for a qualifiziertes Zeugnis, not a simple one.
If you cannot get an internship yet
Internships are competitive, and the first one is the hardest, because employers want to see evidence you can do the work before they will let you do the work.
That circle is breakable. Instead of waiting for a company to grant you experience, do a real, company-style project in the skill your target internships ask for, get it evaluated, and put a verifiable certificate on the application. It is not the same as having interned. It is a great deal better than an empty page, and it directly answers the question the employer is actually asking, which is whether you can do the work.
Before you sign
- Get the internship contract in writing, including hours, duration, pay and whether it is classified as mandatory or voluntary.
- If it is mandatory, have your university's written confirmation ready.
- If you are non-EU, confirm with your international office how it will be counted against your permit.
- If it is voluntary and longer than three months, check that the pay meets the current statutory minimum wage.
This article explains the general framework and is not legal advice. Your university's international office and, for pay questions, the relevant advisory services or a works council are the right places to confirm a specific arrangement.