The tax implications of prediction market earnings differ substantially across jurisdictions and hinge on variables such as trading volume, whether this constitutes your primary source of income, and how your country's tax authority treats blockchain-based transactions. This overview covers the essential regulatory landscape — you should always seek advice from a qualified tax advisor familiar with your local rules.
United States
- Most prediction market venues restrict access for US-based participants (Polymarket applies geographic restrictions) — though blockchain-based transactions remain technically available
- The IRS classifies digital assets as tangible property; each USDC transaction may trigger a taxable event
- Earnings from prediction markets are ordinarily classified as short-term capital gains (taxed at standard income rates if positions closed within 12 months)
- Kalshi, which operates under CFTC oversight, generates 1099 documentation; decentralised platforms do not — taxpayers must report independently
- Active traders may be eligible for trader classification status (enabling mark-to-market election)
United Kingdom
- A gambling exemption may apply: winnings could be non-taxable if the activity qualifies as gambling under UK law
- If treated as an investment activity: the annual capital gains exemption stands at £3,000 for the 2026 tax year
- Regular trading activity classified as a business generates income tax liability — National Insurance contributions may also be due
- HMRC guidance on prediction markets remains inconclusive and has not been formally clarified
Germany
- Under §23 EStG: private transaction gains below €600 annually are exempt from taxation
- Holding USDC for longer than one year: profits may qualify for exemption under German cryptocurrency tax rules
- Regular trading activity typically results in ordinary income tax classification
- Glücksspielgewinne (gambling-related winnings) ordinarily escape taxation — though the regulatory classification remains ambiguous
Australia
- The ATO classifies digital assets as property; capital gains tax applies upon realisation
- A 50% discount on capital gains applies to assets retained for 12 months or longer
- Gambling-related winnings are typically non-taxable unless you operate as a professional gambling business
Best Practices Globally
- Export your full transaction record from PolyGram to support tax filing
- Employ dedicated crypto accounting tools (Koinly, CoinTracking) to compute gains and losses
- Maintain comprehensive documentation of every USDC movement, including entry and exit transactions
- Engage a tax professional with expertise in cryptocurrency matters for your specific jurisdiction
FAQ
- Does PolyGram report my earnings to tax authorities?
- PolyGram does not presently furnish tax documentation to participants. You bear sole responsibility for declaring prediction market income according to your jurisdiction's requirements.
- Is USDC treated differently from volatile crypto for tax?
- Across most tax systems, USDC remains classified as a digital asset subject to identical rules as BTC or ETH. Although its price stability makes gain/loss computation more straightforward, the underlying tax framework remains unchanged.
- What records should I keep?
- Retain all transaction records including timestamps, quantities, entry and exit prices, and settlement details. PolyGram allows you to download transaction data — ensure you save copies on a regular basis.