The rule change does not care that your old spreadsheet treated every wallet like one big soup. Starting with 2025 activity, U.S. crypto investors are pushed toward per-wallet cost basis tracking under IRS Rev. Proc. 2024-28. The comfortable universal-pool method a lot of people used for years is not the future. If you DIY this with vibes, you can allocate basis to the wrong venue and invent gains or erase losses. That is how a heater year becomes an overstated bill and a crash year becomes a missed opportunity. CoinLedger has been moving users through cost-basis reallocation and per-wallet logic so 2025-and-later activity can be calculated the way the procedure expects. The product still has to be pointed at complete data. Garbage in, legally interesting garbage out. This is exactly where a team earns its keep. We confirm wallets are connected, transfers are linked, and the reallocation snapshot is not fighting a pile of uncategorized deposits. You do not need to become an IRS proced...