Polymarket is accessible in Mexico — the platform does not geoblock Mexican IP addresses. Mexico is Latin America’s third-largest crypto market, with a well-developed exchange ecosystem led by Bitso and convenient deposit methods like SPEI. Here’s what Mexican users need to know about using Polymarket.
Current Status: Accessible
Mexico is not on Polymarket’s geoblocked countries list. The platform is fully accessible from Mexican IP addresses. Mexican users can sign up, deposit, and trade on all available markets.
Mexico’s crypto adoption has grown rapidly — user penetration is projected at over 20% in 2026, and the country ranks third in Latin America for crypto adoption behind Brazil and Argentina. Bitso, Mexico’s largest exchange, has grown to over 9 million users across Latin America and provides a straightforward MXN-to-USDC path.
The legal landscape for prediction markets in Mexico sits in a grey area. Mexico’s gambling laws are outdated (dating to 1947), and the Fintech Law of 2018 addresses crypto exchanges but not prediction markets specifically. There’s no record of enforcement against Mexican Polymarket users.
The Legal Landscape
The Fintech Law (2018)
Mexico’s Ley para Regular las Instituciones de Tecnologia Financiera (Fintech Law) was groundbreaking for Latin America when enacted in 2018. It formally defines “virtual assets” and grants regulatory oversight to multiple agencies:
- CNBV (National Banking and Securities Commission) — licenses fintech institutions
- Banxico (Bank of Mexico) — regulates virtual asset usage within the financial system
- SAT (Tax Administration Service) — tax compliance and anti-money laundering supervision
However, the law primarily regulates financial institutions and fintech companies, not individual users of overseas platforms.
Banxico’s Rule 4/2019
Banxico’s Rule 4/2019 significantly restricts how licensed financial institutions can interact with crypto. Banks and fintech firms cannot offer crypto services directly to clients (custody, exchange, or transmission). As of 2026, Banxico has not granted any public authorizations under this rule.
This means most crypto activity in Mexico happens through non-financial entities — exchanges like Bitso that operate outside the traditional banking framework. These entities are subject to AML obligations but don’t need a banking license.
Gambling Laws
Mexico’s gambling regulatory framework is based on the Federal Law of Games and Sweepstakes from 1947. Online betting exists in a legal grey area:
- Online gambling is permitted through interpretation of the existing law, not through explicit legislation
- SEGOB (Ministry of the Interior) oversees gambling regulation and has been working on a comprehensive reform since 2025
- A new gambling bill is expected between late 2025 and 2026, partly driven by the 2026 FIFA World Cup in Mexico
- Mexico’s Senate approved increasing the iGaming tax rate from 30% to 50% in 2025
Prediction markets specifically are not addressed in either the gambling law or the Fintech Law. Decentralized, crypto-based platforms like Polymarket fall into an unregulated gap between these frameworks.
AML Requirements
Non-financial entities handling virtual assets must comply with Mexico’s AML regime:
- Transactions of approximately $1,180 USD or more (210 UMA) must be reported to the Financial Intelligence Unit (UIF)
- A July 2025 amendment to the AML law lowered reporting thresholds and expanded VASP requirements
- Individual users are not directly subject to these reporting requirements, but exchanges are
How to Deposit from Mexico
Mexico has a strong crypto on-ramp ecosystem thanks to Bitso and widespread SPEI support.
Step 1: Buy USDC on a Local Exchange
| Exchange | SPEI Support | OXXO | Card Payments | Notes |
|---|---|---|---|---|
| Bitso | Yes (instant) | Yes | Yes | Mexico’s largest exchange; strong MXN liquidity |
| Binance | Yes | No | Yes | Global leader; P2P MXN trading available |
| Bybit | Yes | No | Yes | SPEI, Mercadopago, BBVA, Citibanamex support |
| OKX | Yes | No | Yes | Low fees; P2P MXN support |
| Trubit | Yes | Yes | Yes | Mexican-focused exchange |
Deposit Methods Explained
SPEI (Sistema de Pagos Electronicos Interbancarios): Mexico’s interbank transfer system is the fastest and cheapest way to fund your exchange account. SPEI transfers to Bitso are typically instant and free. This is the recommended deposit method.
OXXO: You can deposit cash at any of Mexico’s 20,000+ OXXO convenience stores. This is slower (can take hours to process) and has lower limits, but useful if you prefer cash. Bitso and Trubit support OXXO deposits.
CLABE: Your exchange will provide a CLABE (standardized Mexican bank account number) for receiving SPEI transfers. Simply initiate a transfer from your bank to the CLABE provided by the exchange.
Step 2: Transfer USDC to Polymarket
- Go to Deposit on Polymarket
- Select Use Crypto and copy your deposit address
- Send USDC from your exchange to the Polymarket address
- Choose Polygon for the lowest fees ($3 minimum, arrives in seconds)
For the full walkthrough, see our How to Deposit on Polymarket guide.
Tax Implications
Mexico does not have a dedicated crypto tax code. Instead, crypto gains fall under the general tax framework.
Income Tax (ISR)
Profits from buying and selling crypto are taxable under Mexico’s Income Tax Law (Ley del ISR):
| Income Bracket | ISR Rate |
|---|---|
| Lowest bracket | 1.92% |
| Mid brackets | 6.40% - 21.36% |
| High brackets | 23.52% - 30% |
| Highest bracket (over ~$4.5M MXN) | 35% |
- Tax is calculated on net gains (selling price minus purchase price minus fees)
- Losses can offset gains in some cases
- The ISR applies to Polymarket profits
Reporting Requirements
- You must report crypto gains on your annual tax declaration to SAT
- There is no withholding tax on foreign platform trades — you are responsible for self-reporting
- Keep detailed records of all deposits, trades, withdrawals, and conversion rates
What You Don’t Pay
- No VAT on crypto-to-crypto transactions for individuals
- No specific crypto surcharge — standard income tax rates apply
- Mexico has no exit tax on crypto gains
Getting Started
If you’re in Mexico and want to start trading on Polymarket:
- Sign up for Polymarket — under 2 minutes, no KYC required
- Buy USDC on Bitso via SPEI — instant and free MXN deposits
- Deposit on Polymarket — transfer USDC via Polygon
- Place your first trade — start with a small amount
- Use limit orders to avoid taker fees — only taker orders pay fees on Polymarket
Related Guides
- How to Sign Up for Polymarket — Create your account
- How to Deposit on Polymarket — Full deposit guide
- How to Trade on Polymarket — Market orders, limit orders, and tips
- Polymarket Fees Explained — Fee breakdown by category