NFT, unlike cryptocurrency, is intended to transfer rights to a specific intellectual property object. The rights themselves, in particular copyrights, are regulated by law, but the method of transferring them via NFT in the blockchain is not provided. This means that an NFT transaction will, in legal terms, be treated as a non-written transaction. In case of alienation of the exclusive right to an object of intellectual property, legislation requires the written registration of the transfer of copyright. In the absence of this document, the buyer will not be able to prove either the expenses for tax purposes, or his rights in the event of legal protection.