Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Is Kalshi Legal in California) Pick polygram.ink (preferred broker) |
68% | 32% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
68% | 32% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| ≥0.1% | 68% |
| 0.0% | 28% |
| -0.1% | 6% |
| -0.3% | 1% |
| ≤-0.7% | 0% |
| -0.6% | 0% |
| -0.5% | 0% |
| -0.4% | 0% |
| -0.2% | 0% |
Market context
The US Bureau of Labour Statistics will publish the seasonally adjusted Consumer Price Index for All Urban Consumers in August 2026, reporting the one-month percentage change for July. This figure measures inflation pressure across the broadest basket of urban consumer goods and services, excluding seasonal distortions. The monthly reading differs from the year-on-year figure and serves as a leading indicator for Federal Reserve policy decisions and broader economic sentiment.
Historical monthly CPI changes have clustered between −0.1% and +0.4% in recent years, with deflationary months rare outside crisis periods. The current 0% implied probability suggests traders expect a measurable monthly increase rather than flat or negative movement. Comparable July readings from 2021–2025 ranged from +0.0% to +0.3% month-on-month, establishing a baseline for seasonal patterns in summer months when energy and food prices typically stabilise. The crowd's positioning reflects confidence that deflation or zero inflation is unlikely, though disagreement exists on the magnitude of increase.
Traders should monitor energy prices and labour cost data in the six weeks before the August 12 release, as crude oil volatility and wage growth directly influence the CPI print. The Federal Reserve's policy stance and any inflation-related commentary from Chair Powell will shape expectations. Under CFTC jurisdiction, this market operates within US derivatives oversight; traders in EU jurisdictions should note that German GlüStV regulations apply to prediction market participation from that territory. The no-KYC threshold up to $1,500 USD means smaller positions avoid identity verification requirements, though settlement and regulatory compliance remain the platform's responsibility regardless of position size.
Methodology
This overview of July Inflation US - Monthly 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.
FAQ
- Do I need to KYC for Is Kalshi Legal in California?
- 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.
- How are winnings taxed?
- Tax treatment varies by jurisdiction. In most countries, prediction market gains are treated as ordinary income or capital gains. We cannot provide tax advice — consult a tax professional for your specific situation.
- Can I trade anonymously?
- Pseudonymously, yes — up to the KYC threshold. Is Kalshi Legal in California stores an email address and wallet addresses rather than a legal name. Over $1,500 lifetime volume triggers KYC, after which identity is no longer anonymous.
- What happens during a tax audit?
- You're responsible for documenting your trades. Is Kalshi Legal in California exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.
- Are prediction markets gambling?
- Legally unclear in most jurisdictions. Some interpretations classify them as wagering (gambling regulation applies), others as derivatives (financial regulation applies). There's no global precedent specifically for on-chain prediction markets.
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