TaxBet exists because its founder got the notice: a proposed tax computed from gross casino payouts, for a year that had not gone that way. Anyone who has played seriously online knows how detached those two numbers can be. The IRS's computers don't.
Under IRS guidance and case law (Chief Counsel Advice AM 2008-011; Notice 2015-21, a proposed safe harbor; Shollenberger v. Commissioner; Park v. Commissioner), a casual gambler's income may be measured by session rather than by adding up Forms W-2G. TaxBet documents that computation for you and your tax professional to review. Computing that across several platforms' export formats meant reconciling thousands of transactions, each book with its own file shape, its own labels, its own quirks. No tool did the work. So we built one, used it to document the session-based figures for the notice year, and kept building.
TaxBet doesn't replace a CPA — it arms one. Most preparers have never seen online-era gambling volume; TaxBet gives yours the substantiation they'd otherwise spend hours building.
Local-first. Your files are parsed and computed in your browser — the free check uploads nothing to any server. Tested against reality. The engine is tested against 480,000+ rows of real transaction history across four operators' export formats, with a ground-truth suite that must stay green on every change. Honest about limits. Where a tax constant hasn't been human-confirmed — a state rule, an indexed threshold — TaxBet says "pending verification" rather than inventing a number. A wrong figure is worse than no figure.