Taxation of gains from prediction market activity differs substantially across jurisdictions and hinges on variables such as trading volume, whether trading constitutes your primary occupation, and how your tax authority treats stablecoin-denominated transactions. This overview covers the principal regulatory positions — always seek advice from a qualified tax adviser in your own region before making decisions.
United States
- Most prediction market platforms restrict access for US-based participants (Polymarket implements geographic restrictions) — though on-chain participation remains technically possible
- The IRS classifies crypto holdings as property; every USDC transaction may trigger a taxable event
- Winnings from prediction markets are typically taxed as short-term capital gains (at ordinary income rates for positions closed within 12 months)
- Kalshi, which operates under CFTC regulatory oversight, issues 1099 forms; decentralised platforms do not — participants must self-declare
- Active traders may qualify for trader status under Section 475 (allowing mark-to-market election)
United Kingdom
- Potential gambling exemption: returns may escape taxation if the activity qualifies as gambling under UK law
- Investment classification triggers capital gains tax: the £3,000 annual exemption applies in 2026
- If classified as professional trading, income tax and National Insurance contributions become due
- HMRC has not issued comprehensive guidance on how prediction markets should be classified
Germany
- §23 EStG provides relief: gains under €600 annually from private asset sales incur no tax
- USDC held beyond 12 months: gains may be exempt under German cryptocurrency tax law
- Regular or systematic trading typically results in income tax liability
- Glücksspielgewinne (gambling winnings) ordinarily carry no tax burden — though whether prediction markets qualify remains unsettled under the GlüStV framework
Australia
- The ATO classifies crypto as a capital asset: gains on realisation are subject to capital gains tax
- Assets retained for more than 12 months qualify for a 50% CGT discount
- Gambling winnings typically avoid taxation unless the participant operates as a professional gambler
Best Practices Globally
- Export your full transaction log from PolyGram to support tax filings
- Leverage crypto-focused accounting tools (Koinly, CoinTracking) to determine taxable gains and losses
- Maintain comprehensive documentation of all USDC movements, including deposit and withdrawal records
- Engage a tax specialist with expertise in cryptocurrency and KYC compliance requirements in your location
FAQ
- Does PolyGram report my earnings to tax authorities?
- PolyGram does not currently furnish tax reporting forms to participants. You bear sole responsibility for declaring prediction market gains according to your local tax code.
- Is USDC treated differently from volatile crypto for tax?
- Across most jurisdictions, USDC remains classified as a cryptographic asset and faces identical tax treatment as Bitcoin or Ethereum. Its price stability reduces complexity in gain computation but does not alter the underlying tax regime.
- 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.