Short Answer

A secondary standard employment position is automatically pushed into Tax Class 6, subjecting your extra hours to the highest possible tax rate. Only specialized "Minijobs" capped at 603 € per month escape this aggressive payroll deduction scheme.

What Most Expats Don't Realize

You signed a regular employment contract for a weekend gig to supplement your primary office income. You expected to receive the full agreed hourly rate but did not realize your secondary employer was legally forced to run your payroll under Tax Class 6. Your first monthly remittance was cut down by nearly 50%, leaving you with a measly 280 € take-home payment for a whole month of exhausting weekend labor.

What To Do

  • Open a separate savings account specifically designated for future government tax reconciliations.
  • Transfer 35% of all secondary freelance or supplemental earnings into that holding account immediately upon receipt.
  • "Wird dieser Nebenjob als Minijob oder nach Steuerklasse Sechs abgerechnet?" (Is this side job billed as a Minijob or under tax class six?) — ask your secondary employer's payroll clerk this question before signing the contract.

The Truth

Germany hates untracked income. They make the second-job tax intentionally painful to discourage people from working multiple jobs without full social contributions.