The tax implications of prediction market earnings differ substantially across jurisdictions and hinge on variables such as trading volume, whether trading constitutes your primary occupation, and the way your country treats USDC-denominated transactions. This overview covers the principal requirements — always engage a qualified tax adviser in your region for personalised guidance.
United States
- Most prediction market platforms restrict access for US residents (Polymarket implements geographic blocking) — though blockchain-based activity remains technically available
- The IRS classifies crypto holdings as property; every USDC transaction may trigger a taxable event
- Earnings from prediction markets are ordinarily treated as short-term capital gains (taxed at standard income rates if held under 1 year)
- Kalshi (overseen by the CFTC) generates 1099 forms; decentralised platforms do not — you must report independently
- Active traders may qualify for trader tax status (permitting mark-to-market accounting)
United Kingdom
- Possible gambling exemption: returns may escape taxation if the activity qualifies as gambling
- Capital gains treatment if classified as investment: £3,000 annual CGT allowance applies in 2026
- Trading pursued professionally is treated as income — National Insurance obligations may arise
- HMRC has yet to issue authoritative guidance on how prediction markets should be classified
Germany
- §23 EStG: private sale proceeds below €600 annually incur no tax
- Holding USDC for more than 1 year: profits may escape taxation under German Krypto-Steuerrecht
- Regular trading activity is likely subject to income tax
- Glücksspielgewinne (gambling prize money) are ordinarily exempt from tax — though the status of prediction markets remains unsettled
Australia
- The ATO regards crypto as property: capital gains obligations apply when you dispose of holdings
- 50% CGT reduction available for assets retained beyond 12 months
- Gambling prize money is ordinarily untaxed provided you are not a professional gambler
Best Practices Globally
- Retrieve your full transaction log from PolyGram to support tax filings
- Employ crypto tax tools (Koinly, CoinTracking) to determine your gains and losses
- Maintain comprehensive documentation of all USDC activity including deposits and withdrawals
- Retain a crypto-experienced tax specialist familiar with your country's rules
FAQ
- Does PolyGram submit my earnings information to tax authorities?
- PolyGram presently does not furnish tax documentation to members. You bear sole responsibility for declaring prediction market returns according to your local tax law.
- Is USDC subject to different tax rules compared to other cryptocurrencies?
- Across most jurisdictions, USDC remains a cryptocurrency and falls under identical tax rules as BTC or ETH. Although its fixed price reduces complexity in calculating gains, the underlying tax framework remains unchanged.
- What documentation must I preserve?
- Retain all transaction receipts showing date, quantity, entry and exit prices, and settlement details. PolyGram offers downloadable transaction records — save these on a regular basis.