Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Tax UK) Pick polygram.ink (preferred broker) |
73% | 27% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
73% | 27% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| United Russia (ER) | 73% |
| New People (NL) | 19% |
| Liberal Democratic Party of Russia (LDPR) | 5% |
| Communist Party of the Russian Federation (KPRF) | 2% |
| Yabloko | 1% |
| A Just Russia – For Truth (SRZP) | 0% |
| Rodina | 0% |
| Civic Platform (GP) | 0% |
| Other | 0% |
| Party B | 0% |
| Party C | 0% |
| Party D | 0% |
| Party E | 0% |
| Party F | 0% |
| Party G | 0% |
| Party H | 0% |
| Party I | 0% |
| Party J | 0% |
| Party K | 0% |
| Party L | 0% |
| Party M | 0% |
| Party N | 0% |
| Party O | 0% |
| Party P | 0% |
| Party Q | 0% |
| Party R | 0% |
| Party S | 0% |
| Party T | 0% |
| Party U | 0% |
| Party V | 0% |
| Party W | 0% |
| Party X | 0% |
| Party Y | 0% |
| Party Z | 0% |
Market context
Russia’s next State Duma election is scheduled for September 2026, and the market is not asking who wins overall but which party adds the most seats versus its current baseline. Public polling and projection models still put United Russia well ahead on absolute strength, but the market’s current 69% implied probability for a “YES” outcome mostly reflects the idea that the ruling party is the likeliest to record the largest seat gain from today’s starting point, rather than merely retain dominance.[1][4][7]
That framing matters because comparable projections point in different directions depending on whether the comparison is against the 2021 election result or the party’s present seat holdings. WCIOM-based seat estimates in March 2026 suggested United Russia on 201 seats, with the Liberal Democratic Party, New People, the Communists and A Just Russia trailing far behind, while other trackers projected United Russia around the low- to mid-300s on a total of 450 seats, implying only modest net movement from the current Duma balance.[1][3] Under Russia’s tightly managed electoral environment, small shifts in list allocation, single-member district nominations and opposition access can matter more for this market than headline vote share alone.[9][11]
Traders should watch formal election scheduling, candidate registration rules, district map implementation and any late changes to ballot access or electoral administration, because those variables affect whether gains are concentrated in United Russia or filtered to smaller systemic parties. The legal and access layer also matters: under Germany’s GlüStV, locally targeted gambling-style marketing and availability constraints can affect how such markets are treated for German users, while US CFTC reach remains relevant where a venue offers event contracts to US persons; “no-KYC up to $1,500” generally means a user can trade below that threshold without identity verification, but withdrawals, limits and jurisdiction blocks can still apply to access to this specific market.
Methodology
This overview of Which party will gain most seats in Russian Parliamentary Election? reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.
Resolution & payout
On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.
UK Frequently Asked Questions
- Do I need to KYC for Polymarket Tax UK?
- Not for lifetime trading volume under $1,500. Above that threshold, a quick KYC flow kicks in — ID, selfie, approximately 5-10 minutes. The threshold matches FATF travel standards for unregulated crypto platforms.
- Is Polymarket regulated by the UKGC?
- No. Polymarket is not licensed by the UK Gambling Commission (UKGC). It is a decentralised prediction market operated under US regulation. UK traders can use it but do not benefit from UKGC dispute resolution or player protection requirements.
- What are the HMRC tax rules on Polymarket profits for UK traders?
- Polymarket profits are treated as cryptocurrency disposal events by HMRC. Each USDC settlement is a taxable event subject to Capital Gains Tax (CGT). For 2026/27, the CGT rate is 18% (basic rate) or 24% (higher rate). The annual CGT exemption is £3,000. Report via HMRC Self Assessment if your total crypto gains exceed £3,000 or proceeds exceed £50,000.
- Does Polymarket KYC apply to UK users?
- Yes. Polymarket requires KYC (Know Your Customer) verification for all users, including UK residents. You must provide a government-issued photo ID and a selfie. The process typically takes 5–10 minutes via their ID verification provider.
- What is the legal difference between Polymarket and Betfair Exchange for UK traders?
- Betfair Exchange is UKGC-licensed, meaning UK consumer protections apply and winnings are typically tax-free. Polymarket is not UKGC-licensed — it operates under decentralised blockchain rules. Profits from Polymarket are subject to HMRC CGT as crypto disposals. Choose based on your regulatory preference and tax situation.
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