Money & taxes
Minijob-Zentrale
The Minijob-Zentrale is Germany's central registration office for all mini-jobs, run by the Knappschaft-Bahn-See. Employers report mini-jobbers there and pay the flat-rate contributions; for households it also handles the simplified registration of domestic help.
The Minijob-Zentrale administers marginal employment for the entire country: employer registrations, flat-rate social contributions, and the levy system that funds sick-pay reimbursement for small employers. It belongs to the Deutsche Rentenversicherung Knappschaft-Bahn-See and processes millions of mini-job relationships.
For commercial mini-jobs the employer handles all reporting; the employee mostly notices the Minijob-Zentrale through the pension opt-out form. Households employing cleaners or babysitters use the simplified Haushaltsscheck procedure, which legalizes domestic help with minimal paperwork and gives the helper accident insurance.
What it means for working students
As a student mini-jobber your main touchpoint is one decision: stay in pension insurance (3.6% employee share of the mini-job wage in 2026) or file the opt-out via your employer. Staying in earns pension months that count toward German pension eligibility and permanent residency, for a small price at mini-job wage levels. If you babysit or tutor for a private household, insist on Haushaltsscheck registration; unregistered work means no accident coverage if something happens on the job.