^ From a non-custodial wallet to the same wallet there is no problem, as they said, it can be used across borders without revealing your identity and completely hiding your identity. But if you meant, transfer from BTC to fiat it is something different, it could be you will experience overtax if it is legal in your country. That is the main goal of BTC, to make a global or international transfer currency that is the best alternative for the bank transfer which it takes a lot of time. However, you can simply google if BTC is legal in your place.