Polymarket and the United States have a tangled history that runs from an early period of open US access, through a CFTC settlement that forced a hard geofence, into the current state where US residents are blocked at the wallet level and the workarounds people reach for carry meaningful operational and personal risk. This guide walks the access paths, what KYC actually checks, what the public reporting on the CFTC settlement said, and what an honest US-based reader should weigh before doing anything. This is general reading of public reporting, not legal advice.
Disclaimer. Nothing here is legal advice. The descriptions below summarise publicly reported information about Polymarket, the CFTC settlement, KYC vendors, and jurisdictional restrictions. Rules change, enforcement priorities change, and the consequences for any individual depend on facts this page does not know. If you live in the United States and are weighing what to do, talk to a lawyer in your state.
A short history of Polymarket and the United States
Polymarket launched in 2020 as a blockchain-based prediction market on Polygon, settling in USDC and using a hybrid order book where matching happens off-chain and settlement happens on-chain. In its first two years the venue operated without geographic restrictions and accumulated a large US user base. The 2020 election cycle in particular drew US-resident traders, and by 2021 Polymarket was carrying tens of millions of dollars of monthly notional volume on US political contracts.
That open-access period ended in January 2022, when the Commodity Futures Trading Commission announced a settlement with Polymarket. According to the public CFTC release, the agency found that Polymarket had been offering off-exchange binary options contracts to US persons without being registered as a Designated Contract Market or a Swap Execution Facility. The settlement included a 1.4 million dollar civil penalty and required Polymarket to wind down all non-compliant markets and block US persons from accessing the platform going forward. The CFTC press release describing the action is the canonical public reference and is worth reading directly if you want the regulator wording rather than secondhand summaries.
From early 2022 onward, Polymarket has operated with a geofence intended to keep US residents off the platform. The fence has become more elaborate over time, the workarounds have evolved in parallel, and the political-market boom around the 2024 US election made the access question more visible than at any point since the original settlement. For background on whether the venue itself is operationally sound, the is Polymarket legit writeup covers the non-jurisdictional dimensions.
The current geofence and how it works
Polymarket blocks US access through three layers, and a US-resident user typically encounters all three in sequence when trying to deposit or trade.
The first layer is IP geolocation. The web app checks the visitor IP against a commercial geolocation database and blocks the trading interface if the IP resolves to the United States. This is the layer most people hear about first, and it is the one VPNs are designed to defeat. On its own it is a weak fence, because a residential VPN exit node in another country trivially flips the geolocation result.
The second layer is wallet-level access control. To trade on Polymarket you connect an Ethereum wallet and the platform issues a session keyed to that wallet address. Polymarket maintains internal records of which wallets have completed which onboarding steps, and a wallet that signed up from a US IP, or that has historical ties to US-flagged identity data, can be flagged regardless of where the current session is coming from. This is the layer that breaks the simple VPN-only approach: the IP looks foreign, but the wallet is already known.
The third layer is KYC at the point where size grows or where withdrawals are attempted. Polymarket has historically used third-party identity verification vendors to confirm jurisdiction. The level of friction depends on volume and on whether the account triggers internal risk checks, but the pattern reported across user accounts is consistent: at small size, sometimes nothing is asked; at meaningful size, identity documents are requested and US documents are rejected.
For traders thinking about which wallet to use for any prediction-market activity, the wallet selection guide covers the operational tradeoffs separately from the jurisdiction question.
What happens when a US wallet tries to access Polymarket
What KYC actually checks
The KYC step is the layer that creates the largest gap between what casual users assume and what actually happens. The popular assumption is that KYC asks for a name and an ID number and runs a basic sanctions screen. The reality is more thorough, especially at the meaningful-size tier.
Identity vendors used by crypto platforms typically check four things. The first is document authenticity: the ID image is run through forgery detection that looks for tampered fonts, mismatched holograms, and reused stock images. The second is a liveness selfie compared against the document photo, which defeats simple ID-photo reuse. The third is a sanctions and politically-exposed-person screen against published lists. The fourth, and the one that matters most for the US question, is jurisdiction inference: the document type itself indicates the issuing country, and any US driver license or US passport flags the account as US-resident regardless of what address was typed in.
A US person submitting a US document fails the jurisdiction check immediately. A US person submitting someone else is document fails the liveness check the moment a selfie is asked for. A US person submitting a foreign document they obtained legitimately as a dual citizen passes the document check, but the account is then tied to that foreign identity for the life of the account, with all of the tax, banking, and reporting consequences that follow from operating a foreign-jurisdiction account from US soil.
The workarounds people reach for and the risk
The workarounds fall into three rough categories, and the risk profile of each is different in kind, not just in degree.
The VPN-only approach. Use a commercial VPN to mask the US IP, connect a wallet that has never touched a US session, and trade small enough not to trigger KYC. This defeats the first gate and sometimes the second. It does not defeat the third, and the third is where any user who scales runs into a wall. The personal risk is twofold: the trading position is in legal grey territory under US law as a US person, and the platform terms of service explicitly prohibit circumvention, which means the funds can be frozen at the platform level if discovered. The reporting and tax obligations under US law do not go away just because the platform did not catch the user.
The non-US passport KYC approach. A US person who also holds citizenship in a non-restricted jurisdiction submits the non-US passport, completes KYC under that identity, and operates the account from a US IP shielded by VPN. This passes more checks than the VPN-only approach because the identity is real. It does not eliminate the US-tax and US-reporting questions, because the US taxes citizens on worldwide income regardless of the citizenship used to hold an account. It also stresses the foreign-account reporting framework, which depending on balance and account type can trigger FBAR or similar filings. The complexity here is exactly why this guide is not legal advice and why anyone considering this path should talk to a lawyer and an accountant.
The off-chain US-native alternative. Use a CFTC-regulated US prediction market venue such as Kalshi instead of Polymarket. This removes the jurisdiction problem entirely because the venue is structured and registered for US participants. It has tradeoffs that are covered in the comparison section below. It is the path with the cleanest risk profile for a US-resident reader, which is why this guide spends a section on it rather than treating it as a footnote.
One additional category that comes up: traders who think they can use a wallet that someone else KYC-ed for them. This is account-sharing, which violates the platform terms of service everywhere, generates a tax and identity problem for the other party, and creates a recovery nightmare if the relationship between the two people sours. It is not a workaround. It is a future dispute waiting to happen, and the parallel concerns raised in the insider trading rules writeup about acting on information you should not be acting on apply to identity in the same way.
Access paths compared
| Access path | US legality (general read) | KYC outcome | Available markets | Risk level |
|---|---|---|---|---|
| Direct US access (no VPN, US IP) | Blocked by platform terms; US person status creates regulatory exposure | Fails at vendor jurisdiction check | None — UI is geofenced | Low operational, n/a |
| VPN with US-origin wallet | Violates platform terms; US person status unchanged | Fails when triggered at size | Small markets only until KYC fires | High — funds can be frozen, US reporting unresolved |
| VPN with fresh non-US-history wallet | Same US person concerns; cleaner platform-side | Fails the moment a US document is submitted | Limited until KYC; nothing after | High — same legal posture, slightly slower failure |
| Non-US passport KYC (dual citizen) | Document is real; US-resident tax and reporting still apply | Passes vendor checks under foreign identity | Full Polymarket market set | Medium — complex tax and reporting, talk to a professional |
| Off-chain Kalshi (US-native) | CFTC-regulated venue for US participants | Standard US KYC, passes with US ID | Kalshi event contract list, narrower than Polymarket | Low — the regulator-blessed path |
The row that catches most readers off guard is the third one. A new wallet with no US history sounds like it should work better than a wallet that signed up from a US IP, and at the geofence layer it does. But the document check at the end is identity-bound, not wallet-bound, and a fresh wallet does not give you a fresh passport. The fence catches the user later, not differently.
What the CFTC settlement actually said
The 2022 CFTC settlement is referenced more often than it is read. The public order is short and clear, and the parts that matter for a US reader thinking about access today are three.
First, the agency found that the binary-option contracts Polymarket had listed were event contracts that fall within CFTC jurisdiction, and that offering them to US persons without registering the venue as a Designated Contract Market or a Swap Execution Facility violated the Commodity Exchange Act. The mechanism here matters: it is not that prediction markets are illegal in the United States in the abstract. It is that an unregistered venue offering specific contract types to US persons crossed a registration line.
Second, the order required Polymarket to cease offering non-compliant markets and to block US-person access going forward. This is what produced the current geofence and the wallet-level access controls. The platform's compliance posture since 2022 has been built around demonstrating to the agency that US persons are being effectively excluded.
Third, the order did not address what individual US persons should or should not do if they had been trading. It addressed the venue. The question of whether and how an individual US trader might face exposure for accessing the platform after the settlement is not a question the CFTC order answered, and the answer in practice depends on facts about the individual that no published document covers. Public reporting suggests enforcement has focused on the platform and on large-volume cases rather than on individual small-size users, but absence of reported enforcement is not a guarantee, and the reader who wants certainty on this should ask a lawyer in their state, not a blog. The original CFTC press release is at cftc.gov and is worth reading directly.
One more wrinkle: the 2024 reporting indicated that the Department of Justice and the FBI conducted activity related to Polymarket in late 2024, which had additional follow-on coverage and prompted the platform to make further statements about US compliance. The exact contours of that activity continue to develop and the responsible thing for this guide to do is point at the existence of those events rather than speculate about their outcome.
Kalshi as a US-native alternative
For a US-resident reader who wants exposure to event contracts without any of the jurisdiction problem, Kalshi is the relevant venue. It is structured as a CFTC-regulated Designated Contract Market, which is exactly the registration status the CFTC settlement said Polymarket lacked. US residents can sign up, complete US-standard KYC with US documents, fund the account from US bank rails, and trade the markets the venue lists.
The tradeoffs against Polymarket are real and worth understanding before treating Kalshi as a drop-in replacement. The market set is narrower, because every contract Kalshi lists has been individually reviewed by the regulator. Some categories Polymarket carries freely, like specific political prediction markets, have had a contested approval history at Kalshi, with periods where election contracts were available and periods where they were not. Liquidity is lower on most contracts, because Kalshi's user base is smaller. The fee structure is different, with Kalshi charging trading fees on a per-contract basis where Polymarket has historically charged none. And the contracts settle in US dollars from a bank-rail account rather than USDC in a wallet, which is operationally simpler for a US trader but removes the on-chain composability of a Polygon-based market.
The honest summary is that Kalshi is what a US person should use if they want the regulatory clarity, and Polymarket is what offshore traders use if they want the broader market set and the deeper liquidity. Trying to be a US person trading on Polymarket is the configuration with the worst risk-reward profile of the three.
What an honest US-resident trader should consider
If this guide had one job, it would be to make the tradeoffs visible and let the reader make the choice. The decision factors that matter most are below, ordered by how often they are the deciding factor in conversations I have had with US-based readers.
Size you actually plan to trade. A reader who wants to put 200 dollars across three markets to learn how event contracts behave has a different decision than a reader who wants to put 20,000 dollars to work on US election cycles. The first reader's risk-reward on any of the workaround paths is bad in absolute terms even if it is small in dollar terms, because the legal and tax cost of a discovered position does not scale linearly with size. The second reader's cost of doing it wrong is large enough that the only sane path is the regulated venue or a professional setup with a lawyer and an accountant involved.
Whether you are a dual citizen. The non-US passport path is a real option for the small subset of readers who legitimately hold a non-US passport and have a real residence or tax connection to that jurisdiction. It is not an option for someone who acquired a foreign document specifically to circumvent the geofence. The vendor checks catch document acquisition patterns, the relationship between the document and the address can be checked downstream, and the tax filings that result from operating any foreign account from US soil are not trivial.
How much you care about the specific market set. Some readers want event-contract exposure in the abstract. Some want a specific Polymarket market that Kalshi does not list. The reader in the first group should default to Kalshi. The reader in the second group has a sharper tradeoff to make, and the right move is usually to skip the specific market rather than to take on jurisdiction risk for a single contract.
How tolerant you are of operational risk. Even setting aside legality, every workaround path adds operational complexity that increases the chance of losing access to funds. A frozen wallet on a foreign-KYC platform is harder to recover than a US-bank-rail position on a US-regulated venue. The complexity tax compounds over the holding period of any position.
What your accountant will say in April. Crypto income from prediction markets is reportable income in the United States regardless of which platform it was earned on. The clean version of this is a US-regulated venue that issues US tax forms. The messy version is a foreign-KYC account where the trader is responsible for reconstructing the position history at year-end. The messy version is not impossible. It is just expensive in professional hours and easy to get wrong.
The cleanest read of the current state is this: if you live in the United States and you want to trade event contracts, the regulator-blessed venue exists and the cost of using it is a narrower market set and slightly lower liquidity. Every other path trades a real operational and personal risk for access to markets the regulator did not approve for US persons. Whether that trade is worth it is the reader's call, not this guide's.
About the author
Eli Marsh founded Poly Syncer after a decade running execution systems for a Chicago prop desk and three years trading prediction markets full time. He writes about the parts of these venues that are not visible from the leaderboard, including the operational and jurisdictional questions that get glossed over in promotional coverage. Eli is not a lawyer and nothing he writes is legal advice. He answers reader questions weekly and reviews every post on this site for accuracy.
Frequently asked questions
Is it illegal for a US resident to trade on Polymarket?
This guide is general reading of public reporting and not legal advice. What is publicly clear is that Polymarket is required by the 2022 CFTC settlement to block US persons, and the platform terms of service prohibit circumvention. The question of what individual liability a US person carries for accessing the venue depends on facts a blog cannot evaluate, and a US-resident reader who is weighing this should talk to a lawyer in their state.
Can I use a VPN to access Polymarket from the United States?
A VPN defeats the IP geofence layer but does not defeat the wallet-history or KYC layers. Users who try VPN-only typically run small for a while and then hit a KYC wall at size, with funds locked while the verification is unresolved. The platform terms of service explicitly prohibit circumvention, which means discovered accounts can be closed and balances frozen.
Does Polymarket KYC actually catch US users?
The identity vendors used by crypto venues check document authenticity, run a liveness selfie, screen against sanctions and politically-exposed-person lists, and infer jurisdiction from the document type. A US driver license or US passport flags the account as US-resident regardless of any address typed in. The check is reliable enough that most accounts that try to scale on a US identity hit the wall.
Is Kalshi the same as Polymarket for a US trader?
No, but it is the closest US-native alternative. Kalshi is a CFTC-regulated Designated Contract Market, which is the registration status the 2022 settlement said Polymarket lacked. The market set on Kalshi is narrower, liquidity is generally lower, and the fee structure is different. The tradeoff is regulatory clarity in exchange for a smaller venue, which for a US-resident trader is usually the right side of the trade.
Where can I read the original CFTC action against Polymarket?
The CFTC published a press release describing the January 2022 settlement on cftc.gov, with a 1.4 million dollar civil penalty and a requirement that Polymarket wind down non-compliant markets and block US persons. The release is the canonical public reference. This guide summarises it as general reading and not as legal interpretation; a reader who needs to act on the order's contents should consult a lawyer.