Unless you invoice more than ~120k€ it's generally more convenient, if possible, to cap your work/earnings at 65k€ and pay less taxes, less social security contribution, and no VAT
Yes, if you want to only pay around 50% (which is still insanely high) in taxes there is a 65k eur gross cap.
Once you make 1 cent more, you get hammered with 76+%.
Depending on your age and how much you can deduct, the switch over can come as "low" as 90k. At 100k you should always be ahead in any case. And that's without counting the social security contributions. Depending on how you value them, it might be more convenient even under <90k.