US crypto/tax people: with brokers/exchanges having to report crypto transactions in 2025, how do you transfer your cost basis to the exchange, so that they report the right gain/loss? Will there be an option to specify that? Anyone know?

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Idk it's always so confusing 😂 GL to us degens surviving tax season. Pretty sure this year I need an actual tax professional to help me so I don't fuck it up... I remember there being some way to manually adjust cost basis but I don't remember if that was on the CB side or the tax software side after importing.