Taxation of prediction market winnings differs substantially across jurisdictions and hinges on variables such as trading volume, whether it constitutes your primary source of revenue, and the way your country treats USDC-denominated transactions. This overview covers the principal regulatory positions — always engage a qualified tax adviser in your region for personalised guidance.
United States
- The majority of prediction market platforms restrict access from US-based users (Polymarket implements geographic restrictions) — though blockchain-based transactions remain technically available
- The IRS classifies crypto holdings as property; every USDC transaction may trigger a taxable event
- Gains from prediction markets are typically subject to short-term capital gains taxation (taxed at ordinary income rates for positions held under 12 months)
- Kalshi (operating under CFTC oversight) generates 1099 documentation; decentralised platforms do not — traders must file independently
- Active traders may qualify for trader status (allowing mark-to-market election)
United Kingdom
- Possible gambling exemption: returns may be exempt from tax if the activity qualifies as gambling
- Investment classification results in capital gains taxation: £3,000 CGT allowance applies in 2026
- Income classification for professional operators — Class 4 National Insurance contributions may be due
- HMRC has not issued conclusive guidance regarding prediction market status
Germany
- §23 EStG: private asset disposals yielding under €600 annually are exempt
- USDC held beyond 12 months: gains may be exempt under German crypto tax rules
- Regular trading activity typically falls under income tax classification
- Glücksspielgewinne (gaming proceeds) are ordinarily non-taxable — though prediction market categorisation remains ambiguous
Australia
- The ATO regards crypto as a capital asset: capital gains arise upon realisation
- Assets retained for 12 months or longer qualify for a 50% CGT reduction
- Gaming proceeds are ordinarily non-taxable unless the participant is classified as a professional gambler
Best Practices Globally
- Export your full transaction ledger from PolyGram for compliance purposes
- Leverage specialised crypto accounting platforms (Koinly, CoinTracking) to compute profit and loss
- Maintain comprehensive documentation of all USDC movements, including entry and exit transactions
- Retain a tax professional with expertise in digital asset treatment for your location
FAQ
- Does PolyGram report my earnings to tax authorities?
- PolyGram presently does not furnish tax documentation to account holders. You bear sole responsibility for declaring prediction market returns according to your local requirements.
- Is USDC treated differently from volatile crypto for tax?
- Across most jurisdictions, USDC remains a digital asset subject to identical taxation as BTC or ETH. The relative stability of its price streamlines gain computation but does not alter the underlying tax regime.
- What records should I keep?
- Retain all transaction receipts containing timestamps, quantities, entry and exit prices, and settlement outcomes. PolyGram allows you to retrieve your transaction record — save it on a regular schedule.