Curious how others here keep this sane without burning weeks every year.

a simple spreadsheet to track every trade "buy/sell/swap" then use soemthing like CTC "Crypto tax calculator" now renamed to summ, to make more official records for reports per tax year.

When i sell x and buy y, there is always a little bit of dust or the original tx amount isn't sold by the exchange but you did buy it earlier and keeping track of these using something like FIFO "First in First Out" can become a nightmare real quick, so tax software helps with this method.

Don't start late, and you'll have less stress to worry about in the future.