What are all the FEES I pay for mining?

1. You buy a miner
2. Monthly you pay electricity (at home or in data center)
3. For mining in mining pool the pool automatically deducts mostly 0.5 to 1% (depends on the pool)

That’s all

You don’t pay anything more to anyone anywhere for anything.

Then, if you want to sell crypto for Euros (on the exchange) – fees are tiny (approx. 0.1%).