Taxcount counts up your gains and losses for US tax purposes. It runs on an airgapped network and helps Bitcoiners (both holders with wallet activity and bitcoin traders) fill out US IRS tax worksheet for 8949, 'Sales and other Dispositions of Capital Assets', for 1040 Schedule D, 'Capital Gains and Losses'. In general, when using Taxcount, your accounting job is to collect and offer the exports from your wallets and exchanges, then label any on-chain transactions that were spends or regular income (including mining). If, in the tax year of interest, you spent a UTXO that was not earned or purchased in that year, then Taxcount also has facilities for declaring its original basis. Providing comprehensive transaction tracking, Taxcount's basis tracking allows you to follow the purchase price of your bitcoin through any number of wallet transfers and exchange round-trips. There is no cloud dependency, so you are free to connect to local bitcoind or Esplora. We are extremely persnickety about where divides occur in the codebase, applying precision decimal arithmetic to ensure accuracy. Taxcount uses FIFO binning on the exchanges, as required by the IRS, and UTXO-level binning for on-chain transactions to ensure maximum accuracy.