Across jurisdictions, the tax implications of prediction market earnings differ substantially based on trading volume, whether trading constitutes your primary occupation, and how your country's tax authority views USDC-denominated transactions. This overview outlines the principal considerations — you should always engage a qualified tax adviser in your own region to address your circumstances.
United States
- Most prediction market platforms restrict access from the US (Polymarket implements geographic blocking) — though blockchain-based trading remains technically available
- The IRS classifies crypto holdings as tangible property; each USDC transaction may trigger a taxable event
- Earnings from prediction markets are ordinarily subject to short-term capital gains taxation (taxed at ordinary income rates where positions remain open under twelve months)
- Kalshi (regulated by the CFTC) generates 1099 documentation; decentralised platforms do not — traders must report independently
- Active market participants may potentially qualify for trader tax status (permitting mark-to-market election)
United Kingdom
- Possible gambling exemption: gains could be exempt from tax where the activity qualifies as gambling
- Investment classification triggers capital gains tax: the £3,000 annual exemption applies in 2026
- Trading undertaken as a profession constitutes income — Class 2 and Class 4 National Insurance contributions may be due
- HMRC has not issued authoritative rulings on how prediction markets should be classified
Germany
- §23 EStG: private transaction gains below €600 annually are exempt
- USDC retained for longer than twelve months: gains may be exempt under German cryptocurrency tax law
- Active trading patterns typically result in ordinary income tax assessment
- Glücksspielgewinne (gaming winnings) ordinarily escape taxation — though the categorisation of prediction markets remains ambiguous
Australia
- The ATO characterises crypto as property: capital gains tax applies upon realisation
- Assets held beyond twelve months qualify for a 50% CGT concession
- Gaming winnings are ordinarily non-taxable unless the participant is classified as a professional gambler
Best Practices Globally
- Export your full transaction record from PolyGram for use in tax preparation
- Employ dedicated crypto accounting tools (Koinly, CoinTracking) to determine taxable gains and losses
- Maintain comprehensive documentation of every USDC movement, encompassing deposits and withdrawals
- Engage a tax specialist with expertise in cryptocurrency matters within your country
FAQ
- Does PolyGram report my earnings to tax authorities?
- PolyGram does not presently furnish tax reporting forms to users. The responsibility for disclosing prediction market profits rests with the individual trader in accordance with local law.
- Is USDC treated differently from volatile crypto for tax?
- Across most jurisdictions, USDC remains classified as a digital asset and falls under identical tax rules as Bitcoin or Ethereum. Though its price stability eases profit-and-loss computation, the underlying tax framework remains unchanged.
- What records should I keep?
- Retain documentation for each transaction: timestamp, quantity, entry and exit prices, and final outcome. PolyGram enables you to download your transaction ledger — save copies on a regular schedule.