Three people start doing UGC in the same month. One works full time at an agency, one is studying and has a side job, the third has a marginal job in retail. All three ask the same question, and all three get a different answer, because three separate sets of rules apply and they do not mix.
What is the same for all three
Before the differences, the shared part, because it is the piece most often overlooked.
UGC income is self-employed income. It arises alongside what somebody does as an employee or a student, and it is treated separately from that. Concretely: the activity is registered, an invoice is issued, and the profit is declared in the income tax return, however small it is.
There is no allowance below which nothing has to be registered. There are limits on individual side effects, and it is precisely those limits that separate the three cases.
Why the mixing happens so often
Because the familiar figures come from employment law and are the first thing that turns up when you look. But they refer to pay from employment, and self-employed income is not pay. Measuring it against the same limit measures the wrong thing.
The objection almost everybody has
"At two hundred euros nobody is going to look." That may be true and changes nothing, because the duty does not hang on whether somebody looks. It arises with the activity, and it surfaces as soon as the income appears in a tax return or a platform reports payments.
The effort of registering is modest. The effort of sorting it out afterwards with three years in the rear-view mirror is not.
The case: employed
This is not about tax, it is about the employment contract. A side activity is permissible in principle, but many contracts require it to be notified or approved.
An employer may not object at will, only where legitimate interests are touched: competition in the same market, use of company resources, or a load that impairs the actual work performance.
What you do in practice. Look at the contract before the first commission arrives, and give the notice in writing. A short email naming the nature and rough scope is the evidence you have later.
What the UGC income does not change. It changes nothing about the social security of the employment relationship, as long as the self-employment stays a side activity. Health and pension cover continue through the job.
The case: studying
Here lies the real trap, and it has nothing to do with the tax office but with health insurance.
Students are covered cheaply under certain conditions. That advantage hangs on studying remaining the main thing. If the self-employed activity becomes the principal occupation, it is lost, and contributions change noticeably.
What the working-student rule does not cover
The familiar rule on insurance exemption attaches to employment against pay, that is, to a job. Self-employed UGC income does not fall under it, neither favourably nor unfavourably.
In practice: somebody with a side job and UGC has to look at two things separately. The job is measured against one rule, the self-employment against the question of whether it overshadows the studies.
The criteria for "principal occupation" are not turnover alone but above all time spent and economic significance. Anyone filming more hours than they study during term should clarify it with their health insurer before the insurer does so unprompted.
The case: marginal employment
A marginal job is employment, and a pay limit applies to it. That limit is not a fixed figure but a formula: it derives from the minimum wage and moves when the minimum wage does.
What matters for UGC is the direction in which that limit does not work. It measures pay from employment. Self-employed UGC income does not count towards it and cannot burst the marginal job.
| Situation | What UGC changes | What has to be reported |
|---|---|---|
| Employed | Nothing about the job's social security | Side activity to the employer, activity to the tax office |
| Studying | Health insurance status, if UGC predominates | Activity to the tax office, scope to the insurer |
| Marginal job | Nothing about the job's pay limit | Activity to the tax office |
The third row is reassuring and still misleads if read on its own. The marginal job is untouched, but the self-employment brings its own duties, and those arise regardless of how small the first invoice was.
What stays the same in all three cases
Registering the activity, recording the income and declaring the profit in the tax return. Those three steps do not depend on what you do alongside.
When it grows beyond the plan
The three cases are snapshots, and the most common course is that the side activity grows without anybody marking a date.
For the employee nothing formal changes at first, but at some point the notice given back then no longer describes what actually happens. Anyone significantly widening the scope updates it, rather than relying on an email from two years ago.
For students it runs unnoticed by contrast, and with the biggest consequences, because the insurance status can change without anybody sending a notice. Here only asking the question yourself helps.
For the marginal job the pay limit stays untouched, but time gets short. That is not a legal boundary but a practical one, and it usually arrives sooner than the others.
The moment to recalculate
When self-employed income exceeds what the job brings in for three consecutive months, the side activity is no longer a sideline. That is when a stocktake pays, before an insurer or an employer prompts one.
Sources
- Section 8 SGB IV, marginal employment
- Section 6 SGB V, exemption from compulsory insurance
- Minijob-Zentrale
- Federal start-up portal
Checked on 8 September 2026. This guide is not legal or tax advice. Where this guide and the official source disagree, the source prevails.
