Taxation of prediction market earnings differs substantially across jurisdictions and hinges on variables such as trading volume, whether this constitutes your primary occupation, and your region's stance on USDC-denominated activity. This overview covers the essentials — always seek guidance from a qualified tax adviser in your locality before filing.
United States
- Most prediction market platforms restrict access for US-based participants (Polymarket implements geographic restrictions) — though blockchain-based participation remains technically possible
- The IRS classifies crypto holdings as property; every USDC transaction may trigger a taxable event
- Earnings from prediction markets are likely categorised as short-term capital gains (taxed at ordinary income rates if positions closed within 12 months)
- Kalshi (operating under CFTC oversight) generates 1099 documentation; decentralised platforms do not — participants must declare independently
- Active market participants may qualify for trader status (allowing mark-to-market election)
United Kingdom
- Possible gambling exemption: returns might be non-taxable if classified as gambling activity
- Investment classification triggers capital gains tax: £3,000 CGT allowance applies in 2026
- Commercial trading activity counts as income — National Insurance contributions may be due
- HMRC has issued no conclusive ruling on how prediction markets should be categorised
Germany
- §23 EStG: private transaction gains below €600 annually remain untaxed
- Holding USDC for 12+ months: gains may qualify for exemption under German cryptocurrency tax law
- Regular trading activity typically results in income tax classification
- Glücksspielgewinne (gambling-related winnings) ordinarily escape taxation — though regulatory status remains ambiguous
Australia
- The ATO regards crypto as property: capital gains tax applies upon realisation
- 50% CGT reduction available for holdings exceeding 12 months
- Gambling-derived income normally escapes taxation unless the participant qualifies as a professional gambler
Best Practices Globally
- Export your full transaction log from PolyGram to support tax filings
- Employ dedicated crypto accounting tools (Koinly, CoinTracking) to compute profit and loss
- Maintain documentation for every USDC movement, including fiat conversions
- Engage a tax specialist with crypto expertise appropriate to your country
FAQ
- Does PolyGram report my earnings to tax authorities?
- PolyGram presently does not furnish tax documentation to participants. You bear sole responsibility for declaring prediction market returns according to your jurisdiction's requirements.
- Is USDC treated differently from volatile crypto for tax?
- Across most jurisdictions, USDC remains classified as a digital asset governed by identical tax rules as Bitcoin or Ethereum. Its price stability eases gain computation but does not alter the underlying tax framework.
- What records should I keep?
- Retain all transaction details: timestamp, quantity, entry and exit prices, and settlement outcome. PolyGram supplies downloadable transaction records — retrieve these on a regular schedule.