And if you try to leave to another EU country they will hit you with a protective assessment on your net worth in Box 2 on your income tax. This assessment will have to be paid at some point at 27%.
If you try and flee the EU they will hit you directly with the 27% tax or you need to get a bank guarantee for the tax amount owed if you want it deferred.
In short this is a exit tax of 27% when you leave the Netherlands.