Tax treatment of prediction market profits varies significantly by country and depends on factors including trading frequency, whether it's your primary income, and how your jurisdiction classifies USDC-based transactions. This guide summarises the key rules — always consult a local tax professional for your specific situation.
United States
- Most prediction market platforms are inaccessible to US users (Polymarket geo-blocks) — but on-chain activity is technically accessible
- IRS treats crypto assets as property; each USDC trade may be a taxable event
- Prediction market profits likely treated as short-term capital gains (ordinary income rates if held under 1 year)
- Kalshi (CFTC-regulated) reports 1099s; on-chain platforms do not — self-reporting required
- Professional traders may qualify for trader tax status (mark-to-market accounting)
United Kingdom
- Potential gambling exemption: profits may be tax-free if activity is classified as gambling
- Capital gains treatment if classified as investment: £3,000 annual CGT exemption in 2026
- Professional trading classified as income — National Insurance may apply
- HMRC has not provided definitive guidance on prediction market classification
Germany
- §23 EStG: private sales gains under €600/year are tax-free
- Holding USDC over 1 year: gains potentially tax-free under German Krypto-Steuerrecht
- Frequent trading likely triggers income tax treatment
- Glücksspielgewinne (gambling winnings) are generally tax-free — but classification is unclear
Australia
- ATO treats crypto as property: capital gains apply on disposal
- 50% CGT discount for assets held over 12 months
- Gambling winnings typically tax-free if not a professional gambler
Best Practices Globally
- Download your complete trade history from PolyGram for tax reporting
- Use crypto tax software (Koinly, CoinTracking) to calculate gains/losses
- Keep records of all USDC transactions including on-ramp/off-ramp
- Consult a crypto-specialised accountant in your jurisdiction
FAQ
- Does PolyGram report my earnings to tax authorities?
- PolyGram does not currently issue tax forms to users. You are responsible for self-reporting prediction market gains in your jurisdiction.
- Is USDC treated differently from volatile crypto for tax?
- In most countries, USDC is still a crypto asset subject to the same rules as BTC or ETH. Its stable value simplifies gain calculations but doesn't change the tax treatment.
- What records should I keep?
- Keep all trade confirmations with date, amount, buy/sell price, and outcome. PolyGram provides exportable trade history — download it regularly.