In my country, a bill was passed in the first reading according to which cryptocurrency will be used as a means of payment. True, indeed, while I cannot say how taxes will be paid. The bill states that the amount of taxation is determined as the difference between the amount of the sold cryptocurrency and the cost of purchasing it, and it is assumed that the tax amount will be five percent.
But what will need to be done in the case of buying goods or services directly for cryptocurrency, I do not even know. Perhaps it will depend on the value of the product or service.