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BittyTax — Open-source cryptocurrency tax calculator for UK HMRC rules with capital gains computation (Same-Day, Bed & Breakfast, Section 104 Pool), 25+ transaction types, Excel/CSV import, wallet balance audit, PDF report generation, and Tkinter GUI interface
Updated
Mar 13, 2026
Python
The only complete TypeScript crypto tax engine on npm — 23 exchange parsers, FIFO/LIFO/HIFO/Specific ID, Form 8949, wash sale detection, DeFi support
Updated
May 4, 2026
TypeScript
Takes a format given by GDAX (Global Digital Asset eXchange), now known as Coinbase Pro, and converts it to the format that bitcoin.tax was expecting
Updated
Apr 18, 2018
Python
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