Every year during tax season, I want to flip the table: on-chain and off-chain, CEX/DEX hopping back and forth, and finally reconciling accounts feels like piecing together shredded paper. Later, I forced myself to keep "restorable" records from the very beginning: the time of each transaction, the amount and type of tokens, the counterpart (address/platform), fees, the valuation currency at the time (I use stablecoins as a ruler), as well as screenshots/exported raw CSV files—don't touch them—and also make a separate organized spreadsheet. Basically: don’t rely on memory to fill in the gaps at the end of the year.

Recently, the social mining and fan token schemes have been quite noisy, and I don’t know if that can really be considered "mining," but from a tax perspective, they usually only recognize whether you have generated taxable income or disposal actions... So the more flashy these activities are, the more complete your records need to be. Anyway, I treat complexity as an enemy: if it can be automatically exported, don’t copy it manually; if it can be archived monthly, don’t wait until the end of the year.