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Polymarket Age Requirement: Minimum Age, KYC & Verification Guide (2026)
Updated March 2026 — Everything you need to know about Polymarket's age requirement, how verification works, US access restrictions, how it compares to other platforms, and what alternatives exist for users under 18.
Quick Answer: Polymarket Requires 18+
Polymarket's Terms of Service require all users to be at least 18 years old. Here is what you need to know at a glance:
- Minimum age: 18 — Same as Kalshi and Robinhood prediction markets
- Verification method: Crypto wallet connection (no traditional ID check at signup for most users)
- US users blocked — Polymarket restricts US access regardless of age due to CFTC settlement
- No strict age gate: Unlike Kalshi's full KYC, Polymarket does not verify your age with government ID at signup
- Under 18 alternatives: Manifold Markets (play money, no age restriction) and Metaculus (free forecasting)
Table of Contents
- Polymarket Age Requirement: The Basics
- How Polymarket Verification Works
- Polymarket vs Kalshi: Verification Compared
- US Access Restrictions & Why Age Alone Is Not Enough
- Age Requirements Across Prediction Markets
- Verification for Non-US Users
- Alternatives for Users Under 18
- Legal Implications of Underage Use
- Frequently Asked Questions
Polymarket Age Requirement: The Basics
Polymarket requires all users to be at least 18 years old. This requirement is established in Polymarket's Terms of Service and applies to all users worldwide, regardless of their country of residence or the legal age of majority in their jurisdiction.
The 18+ age requirement exists because Polymarket is a real-money prediction market where users trade event contracts using cryptocurrency (USDC on the Polygon blockchain). Trading on outcomes of real-world events carries financial risk, and platforms that facilitate real-money trading are universally expected — and in most jurisdictions legally required — to restrict access to adults.
However, the way Polymarket enforces its age requirement is fundamentally different from traditional financial platforms. Because Polymarket is built on blockchain infrastructure rather than traditional banking rails, it does not require government ID verification for basic account access. This means the age requirement is primarily enforced through the Terms of Service agreement rather than a hard identity check at signup.
When you access Polymarket, you agree to the Terms of Service, which state you are at least 18. There is no government ID upload, no date-of-birth verification screen, and no Social Security number requirement at the point of account creation. You connect a crypto wallet and start trading. This is very different from platforms like Kalshi, where you cannot even view your dashboard until full KYC is completed with a government-issued photo ID.
This does not mean Polymarket encourages underage use. It means that the enforcement mechanism is different from what you might expect if you are familiar with platforms like Kalshi or Robinhood. Violating the age requirement is a breach of Polymarket's Terms of Service and can result in account termination and potential forfeiture of funds.
How Polymarket Verification Works
Understanding how Polymarket's verification process works is essential for understanding why the age requirement is enforced differently than on traditional platforms. Polymarket operates on a crypto-native model that prioritizes wallet-based access over identity-based access.
Step 1: Connect a Crypto Wallet
To use Polymarket, you need a cryptocurrency wallet that supports the Polygon network. The most common options include:
- MetaMask — The most popular browser-based wallet
- Coinbase Wallet — Separate from the Coinbase exchange account
- WalletConnect-compatible wallets — Various mobile and hardware wallets
- Polymarket's built-in wallet — Email-based login that creates a wallet for you
When you connect your wallet, Polymarket does not ask for your name, date of birth, address, or any personal identifying information. Your identity on the platform is your wallet address — a string of alphanumeric characters.
Step 2: Fund Your Account with USDC
Polymarket uses USDC (USD Coin) on the Polygon network as its trading currency. You need to acquire USDC and transfer it to your connected wallet. This can be done through:
- Buying USDC on a centralized exchange (Coinbase, Binance, Kraken) and bridging to Polygon
- Using Polymarket's built-in fiat on-ramp (which may require additional verification)
- Receiving USDC from another wallet
Step 3: Agree to Terms of Service
During the signup flow, you agree to Polymarket's Terms of Service, which include the 18+ age requirement. This is a self-certification — you are stating that you meet the age and eligibility requirements, but there is no automated system verifying that claim at this stage.
When Does Polymarket Require More Verification?
While basic access requires only a wallet connection, Polymarket has implemented tiered verification for certain activities:
| Activity | Verification Required |
|---|---|
| Basic trading | Wallet connection + Terms of Service agreement only |
| Large deposits via fiat on-ramp | May require KYC through payment processor |
| Fiat withdrawals | KYC verification typically required by off-ramp provider |
| High-volume trading | May trigger enhanced due diligence |
| Reward programs or promotions | May require identity verification for payouts |
For a complete walkthrough of the Polymarket signup and trading process, see our Polymarket App guide.
Polymarket vs Kalshi: Verification & Age Enforcement Compared
The difference between how Polymarket and Kalshi handle age verification and identity checks is one of the starkest contrasts in the prediction market space. Understanding this difference is important for anyone evaluating which platform to use.
| Verification Factor | Polymarket | Kalshi |
|---|---|---|
| Minimum age | 18+ | 18+ |
| Age verification method | Self-certification (Terms of Service) | Government ID + SSN verification |
| Government ID required | No (for basic access) | Yes (mandatory for all users) |
| Social Security Number | No | Yes (mandatory) |
| Address verification | No | Yes |
| KYC provider | None (basic) / Third-party for fiat ramps | In-house + third-party verification |
| Time to start trading | Minutes (connect wallet) | Hours to days (KYC approval required) |
| Can underage users bypass? | Technically possible (TOS violation) | No (ID verification blocks it) |
| Regulatory basis | Offshore / crypto-native | CFTC-regulated DCM |
| US availability | Blocked for US users | Legal in all 50 states |
Kalshi's strict KYC process means it is effectively impossible for an underage user to create an account — the government ID check will catch anyone under 18. Polymarket's crypto-based access means the age requirement relies on the honor system at signup. This is not unique to Polymarket — most crypto-based platforms work this way. But it is a meaningful difference if age enforcement is important to you, whether as a parent or as a user evaluating platform integrity.
For a full comparison of these two platforms beyond verification, see our Polymarket vs Kalshi guide.
US Access Restrictions & Why Age Alone Is Not Enough
Even if you meet Polymarket's 18+ age requirement, US-based users cannot legally access Polymarket. This is a critical point that many people searching for "Polymarket age requirement" may not realize.
Why Polymarket Blocks US Users
In January 2022, Polymarket reached a settlement with the CFTC (Commodity Futures Trading Commission) for operating an unregistered derivatives exchange in the United States. As part of this settlement, Polymarket:
- Paid a $1.4 million fine to the CFTC
- Agreed to block US-based users from accessing the platform
- Implemented geoblocking based on IP addresses
- Moved its operations offshore
This means that even if you are a US resident over 18, you are not eligible to use Polymarket under its current terms and the CFTC settlement agreement.
VPN Access: Risks and Consequences
Some US users attempt to access Polymarket using a VPN (Virtual Private Network) to mask their location. This is risky for several reasons:
- Violates Polymarket's Terms of Service — Using a VPN to circumvent geoblocking is an explicit TOS violation that can result in account termination and fund forfeiture
- Potential legal exposure — Accessing an unregistered derivatives exchange as a US person may have legal implications under CFTC regulations
- No regulatory protection — If something goes wrong (platform issues, disputed settlements, lost funds), US users have no regulatory recourse because they should not have been on the platform in the first place
- Tax complications — Reporting crypto-based prediction market gains from a platform you accessed in violation of federal settlement terms creates complex tax and legal issues
If You Are a US Resident
Regardless of your age, the legal prediction market option for US residents is Kalshi. It is CFTC-regulated, legal in all 50 states, requires you to be 18+, and provides full investor protections including segregated funds and FDIC-insured banking partners. Robinhood also offers event contracts for US users 18+.
For more on Polymarket's legal status, see our Is Polymarket Legal? guide.
Age Requirements Across Prediction Markets
How does Polymarket's age requirement compare to other prediction market platforms? Here is a comprehensive comparison of every major platform's age policy, verification method, and accessibility.
| Platform | Minimum Age | Verification Method | Currency | US Access |
|---|---|---|---|---|
| Polymarket | 18+ | Self-certification (wallet-based) | USDC (crypto) | Blocked |
| Kalshi | 18+ | Full KYC (Gov ID + SSN) | USD | All 50 states |
| Robinhood | 18+ | Full KYC (Gov ID + SSN) | USD | All 50 states |
| Manifold Markets | No age restriction (play money) | Email signup | Mana (play money) | Available |
| Metaculus | No age restriction (free) | Email signup | None (forecasting only) | Available |
| PredictIt | 18+ | KYC verification | USD | Winding down |
Key Takeaways From the Comparison
- Every real-money prediction market requires users to be 18+. This is universal across Polymarket, Kalshi, Robinhood, and PredictIt.
- Polymarket is the only major real-money platform that does not enforce age through government ID verification at the basic access level.
- Kalshi and Robinhood have the strictest verification — full KYC with government ID and SSN makes it effectively impossible for underage users to create accounts.
- Manifold Markets and Metaculus have no age restrictions because they do not involve real money. These are the best options for users under 18 who want to practice prediction skills.
For a deeper comparison of prediction market platforms, see our What Are Prediction Markets? guide.
Verification for Non-US Users
If you are a non-US resident who meets the 18+ age requirement, here is what you need to know about accessing and using Polymarket.
What You Need to Get Started
-
A crypto wallet.
MetaMask, Coinbase Wallet, or any WalletConnect-compatible wallet that supports the Polygon network. Alternatively, use Polymarket's email-based wallet creation.
-
USDC on Polygon.
You need USDC (a stablecoin pegged 1:1 to the US dollar) on the Polygon network. You can acquire this through a centralized exchange in your country and bridge it to Polygon, or use Polymarket's on-ramp partners.
-
Non-US IP address.
Polymarket's geoblocking checks your IP address. You must be accessing from outside the United States.
Documents That May Be Required
While basic Polymarket access does not require identity documents, you may need the following in certain situations:
| Situation | Documents Potentially Required |
|---|---|
| Using fiat on-ramp (credit/debit card) | Government-issued photo ID, proof of address (through payment processor like MoonPay or Transak) |
| Converting crypto to fiat | KYC through the exchange you use (passport, national ID, utility bill) |
| Large withdrawals | Enhanced due diligence may be triggered by off-ramp providers |
| Polymarket reward programs | Identity verification may be required for promotional payouts |
Even though Polymarket itself may not verify your identity, the crypto ecosystem around it often does. If you buy USDC on Coinbase, you go through Coinbase's KYC. If you use a fiat on-ramp to deposit directly to Polymarket, that on-ramp provider has its own KYC. The age requirement is often enforced at these intermediary touchpoints rather than on Polymarket itself. Most reputable crypto exchanges require 18+ with government ID verification.
For a complete guide to using the Polymarket platform, see our Polymarket App guide.
Alternatives for Users Under 18
If you are under 18 and interested in prediction markets, you cannot legally use Polymarket, Kalshi, Robinhood event contracts, or any other real-money prediction market. However, there are legitimate alternatives that let you develop forecasting skills without risking real money or violating any platform's terms.
1. Manifold Markets (Play Money)
Manifold Markets is the best alternative for under-18 users interested in prediction markets. Here is why:
- No age restriction for the play-money tier — anyone can create an account
- Uses mana (play money) instead of real currency
- Same mechanics as real prediction markets — you buy and sell shares on event outcomes
- Covers a wide range of topics including politics, technology, science, sports, and culture
- Community-driven — users can create their own markets on any topic
- Available worldwide with no geographic restrictions
- Great way to build forecasting skills before transitioning to real-money platforms at 18
2. Metaculus (Free Forecasting)
Metaculus is a free forecasting platform that focuses on calibrated prediction rather than trading:
- No age restriction — free to use for anyone
- No money involved at all — you make probability estimates, not trades
- Focuses on science, technology, AI, geopolitics, and long-term forecasting
- Tracks your calibration score — how well your probability estimates match actual outcomes
- Used by researchers, academics, and professional forecasters
- Excellent for developing analytical thinking and probabilistic reasoning
3. Prediction Market Simulators and Paper Trading
Some other options for under-18 users who want to practice prediction skills:
- Good Judgment Open — Free forecasting platform affiliated with the Good Judgment Project, a research program that studies prediction accuracy
- INFER (formerly CSET Foretell) — Free geopolitical forecasting platform
- Spreadsheet paper trading — Track hypothetical trades on real prediction markets using a spreadsheet to simulate portfolio performance without risking money
Advice for Under-18 Users
Using play-money platforms and free forecasting tools before turning 18 is actually an advantage. Research from the Good Judgment Project shows that forecasting skill improves with practice. By the time you turn 18 and can access real-money platforms, you will have developed:
- Better calibration (your probability estimates will be more accurate)
- Understanding of market mechanics (order books, liquidity, bid-ask spreads)
- Emotional discipline (learning to update beliefs based on evidence, not bias)
- Domain expertise in topics you follow closely
Many successful prediction market traders started on play-money platforms. The skills transfer directly to real-money trading.
Legal Implications of Underage Use
Using Polymarket or any other real-money prediction market while under 18 carries real legal and financial risks. This section covers what could happen if an underage user is discovered on the platform.
Terms of Service Violation
At minimum, using Polymarket while under 18 is a breach of the Terms of Service. The consequences can include:
- Account termination — Polymarket can immediately close your account
- Fund forfeiture — You may lose any balance remaining in your account, as the platform is not obligated to return funds to users who violated the terms
- Voided trades — Completed trades may be reversed or voided
- Permanent ban — Your wallet address may be permanently blocked from the platform
Legal Risks by Jurisdiction
Depending on where you live, underage participation in real-money prediction markets could carry additional legal consequences:
| Jurisdiction | Potential Legal Issues |
|---|---|
| United States | Underage trading + accessing a CFTC-restricted platform = multiple potential violations. US minors face the highest legal risk. |
| European Union | Online gambling regulations in many EU countries explicitly prohibit underage participation. Prediction markets may fall under these rules. |
| United Kingdom | The UK Gambling Commission regulates prediction markets. Underage participation is a criminal offense for operators and may have consequences for participants. |
| Other countries | Varies widely. Many countries have no specific prediction market regulations, but general gambling or financial services age requirements may apply. |
Parental Liability
In some jurisdictions, parents or guardians may bear legal responsibility if a minor uses a financial platform without authorization. This is particularly relevant in the US and UK, where financial regulators take underage access to trading platforms seriously.
The Bottom Line on Underage Use
There is no safe or legal way for users under 18 to trade on Polymarket or any other real-money prediction market. The risks — fund forfeiture, account termination, potential legal consequences — far outweigh any potential gains. If you are under 18 and interested in prediction markets, use Manifold Markets or Metaculus to build your skills legally and risk-free until you turn 18.
18+ and Based in the US?
Kalshi is the CFTC-regulated prediction market legal in all 50 states. Full KYC verification, segregated funds, USD deposits.
Sign Up for Kalshi → Polymarket vs Kalshi →Frequently Asked Questions
How old do you have to be to use Polymarket?
You must be at least 18 years old to use Polymarket. This is stated in Polymarket's Terms of Service. Since Polymarket uses cryptocurrency (USDC on Polygon) and requires a crypto wallet, you also need to meet any age requirements imposed by your wallet provider. There is no way to legally use Polymarket if you are under 18.
Does Polymarket verify your age?
Polymarket does not perform traditional age verification like government ID checks for most users. Access is primarily through connecting a crypto wallet, which means there is no strict identity gate at signup. However, Polymarket's Terms of Service require users to be 18+, and violating this constitutes a breach of their terms. Users who deposit above certain thresholds or withdraw to fiat may face additional KYC checks through third-party providers.
Can you use Polymarket under 18?
No. Polymarket's Terms of Service explicitly prohibit users under the age of 18. While the crypto-based signup process does not include a traditional age gate, using the platform underage is a violation of the terms and could result in account termination and forfeiture of funds. There are also potential legal implications depending on your jurisdiction. Use Manifold Markets (play money) or Metaculus (free) instead.
What is the Polymarket minimum age?
The Polymarket minimum age is 18 years old. This applies globally for all users regardless of country. This is the same minimum age required by Kalshi and Robinhood for their prediction market products. Platforms that use play money, like Manifold Markets, have no age restriction.
Does Polymarket require KYC?
Polymarket does not require full KYC (Know Your Customer) verification for basic access. Most users can start trading by simply connecting a crypto wallet. However, Polymarket has implemented tiered verification for larger transactions and fiat on/off ramps. This is a significant difference from Kalshi, which requires full KYC with government ID and Social Security number for all users before any trading is allowed.
Can US users access Polymarket?
Polymarket officially blocks US-based users due to a 2022 settlement with the CFTC. The platform uses geoblocking to restrict access from US IP addresses. Some users attempt to bypass this using VPNs, but this violates Polymarket's Terms of Service and could have legal consequences. US residents looking for a legal prediction market should use Kalshi (CFTC-regulated, legal in all 50 states) or Robinhood event contracts.
What prediction markets can under-18 users access?
Users under 18 can use Manifold Markets, which operates with play money (mana) and has no age restriction for its free tier. Metaculus is another option — it is a free forecasting platform where users make predictions without real money. Good Judgment Open and INFER are additional free forecasting platforms. These let younger users practice prediction and forecasting skills without legal or financial risks.
Is the Polymarket age requirement different from Kalshi?
Both Polymarket and Kalshi require users to be at least 18 years old. The key difference is enforcement: Kalshi requires strict KYC verification with government ID, Social Security number, and address proof before you can trade — making it effectively impossible for underage users to create accounts. Polymarket's crypto-based access means the age requirement is primarily enforced through Terms of Service rather than identity verification at signup.
Ready to Trade on a Regulated Platform?
If you are 18+ and based in the US, Kalshi is the CFTC-regulated prediction market with full KYC, fund protection, and legal access in all 50 states.
Sign Up for Kalshi → How to Bet on Polymarket →Related guides: Is Polymarket Legal? · Is Polymarket Safe? · Polymarket App · How to Bet on Polymarket · Kalshi Age Requirement · Polymarket vs Kalshi · Manifold Markets · What Are Prediction Markets?
Related Guides
- Is Polymarket Legal? — Full legality analysis including the CFTC settlement and US restrictions
- Is Polymarket Safe? — Security, fund safety, and risk analysis for Polymarket users
- Polymarket App — Complete guide to using the Polymarket mobile and web app
- How to Bet on Polymarket — Step-by-step trading guide for beginners
- Polymarket vs Kalshi — Detailed comparison of both prediction market platforms
- Kalshi Age Requirement — Age, KYC, and verification requirements for Kalshi
- Manifold Markets — Play-money prediction market with no age restriction
- What Are Prediction Markets? — Complete introduction to prediction markets and event trading