- 01.0Spreadsheet template (.xlsx) + PDF guide: log buys and sells (swaps as a sell plus a buy), get FIFO cost basis, realized gain/loss per year and holdings by token. 29 USDC one-time on Solana. Not tax advice.[key] FIFO cost basis and realized gain/loss per year in your own file; no wallet connection.[asset] Crypto·[function] Operations·added 9d ago·[via] desktop·[indie]