The tax authority is enforcing again.
The enforcement moratorium was lifted on 1 January 2025. Since then the Dutch tax authority actively checks for false self-employment and can impose back-assessments for an incorrect engagement — retroactively to that date at the earliest, no further. In 2025 a “soft landing” applied: no penalty for intent if you could show you were taking steps, an approach that partly continues into 2026.
The practical message: it is not about a paper approval up front, but about what the collaboration actually looks like. The tax authority no longer assesses or approves model agreements; the real-world execution is what counts.