Great question… would be interesting to see other countries.

Spain:
If you sell your Crypto in Spain than these are the levels:
€0 to €6.000, you must pay a 19% tax, €6.001 to €50.000, 21% tax, €50.001 onwards, 23% tax will be charged.
Every level is counted each here… the same like our income tax… that ranches from 19% up to 47% this year…. So when you sold 10.000 you pay 19% over the first 6.000 and 21% over the next 3.999 and so on.