The exact taxes that you need to pay when dealing with cryptocurrencies will depend on the type of transaction, your personal financial situation, the country in which you reside, and the tax policies of that country. Generally speaking, any gains from the sale or exchange of cryptocurrencies are subject to capital gains tax, and similar taxes may also be applicable for crypto mining activities. Additionally, income and/or sales taxes may be required for certain types of transactions or earnings from cryptocurrencies. It is always recommended to consult with a tax professional familiar with cryptocurrency transactions.