Mexico Just Rewrote the Rules: Effective January 1, 2026
Latin America’s e-commerce market is expanding fast, and Mexico sits at the centre of that growth. But selling into Mexico without the right tax registration in 2026 is not just inefficient it is now significantly more expensive than ever before.
Mexico’s 2026 Tax Reform Package, published in the Official Gazette on November 7, 2025 and entering into force on January 1, 2026, introduced a major expansion of VAT and income tax withholding obligations for digital platforms like Amazon. The impact on foreign sellers without a valid RFC is immediate and material.
What Is RFC and Why Does It Matter More Than Ever?
The Registro Federal de Contribuyentes (RFC) is Mexico’s official tax identification number, issued by the SAT (Servicio de Administración Tributaria). For foreign sellers operating through Mexican fulfilment centres or marketplace platforms, it determines exactly how much of your revenue the platform keeps before paying you.
The 2026 reform has sharpened this distinction significantly. From 2026, platforms are required to withhold 100% of VAT on sales of goods by non-resident sellers when the goods are physically located in Mexico, and similarly withhold the full VAT when sale proceeds are paid into a foreign bank account.
In plain terms: if you are a foreign seller using Amazon FBA in Mexico without a valid RFC, you are now looking at the maximum possible withholding on every payout.
The New Withholding Rates in 2026
The 2026 reform restructured withholding across all seller categories. For foreign sellers, the stakes are highest.
Sellers without a registered RFC face the highest withholding rates, significantly impacting cash flow and net income. Having a valid RFC registered in Seller Central is now critical.
For context, if a seller fails to provide an RFC, the platform will withhold the full 16% VAT and 20% income tax — a combined 36% taken directly from payouts before they reach the seller. With a valid RFC, properly structured, that picture changes dramatically. The withholding drops, and the seller manages their own tax obligations through monthly SAT filings instead.
It is also worth noting that the income tax withholding rate for Mexican individual sellers has increased from 1% to 2.5% under the 2026 reform, showing that LATAM tax authorities are tightening across the board — not just for foreign players.
Amazon FBA in Mexico: What Changed
Sellers may continue selling on Amazon.com.mx without providing a valid RFC number. However, sellers using Amazon FBA in Mexico must upload a valid RFC number to access this service.
This distinction matters enormously. If you are shipping to Mexican customers from overseas warehouses, RFC registration may not be mandatory. But if any part of your fulfilment infrastructure touches Mexican soil — including Amazon FBA — you need an RFC or you face maximum withholding on every transaction.
Other platforms are taking an even harder line. Sellers must provide a valid RFC number to sell on Temu in Mexico. The platform verifies the registration against stock shipments, and if verification fails, the inventory is invalidated and will not be shipped. Temu re-verifies RFC registration on a monthly basis.
New Reporting Requirements: CFDI Withholding Receipts
Beyond the withholding rates themselves, 2026 introduces additional compliance infrastructure. Under the RMF 2026 framework, platforms that withhold taxes must issue a CFDI of withholding to each seller, stating the gross payment amount and the tax withheld, including the Digital Platform Services supplement — which standardises the data platforms must report and increases auditability across marketplaces.
This means the data trail around your Mexico transactions is now more transparent and more auditable than ever before. Clean RFC registration and accurate monthly filings are no longer just good practice — they are essential to maintaining a coherent compliance record.
What RFC Registration Requires for Foreign Businesses
Registering an RFC as a non-resident entity is not a simple online process. It requires appointing a local financial representative in Mexico who assumes joint and several liability for your tax obligations — similar to fiscal representation requirements in France. This representative must be authorised by the seller to handle local tax affairs, with a letter of authorisation and company materials authenticated via Apostille (Hague Convention) and translated and notarised locally in Mexico before submission to the Mexican Ministry of Economy.
Once your RFC is approved, you are obligated to submit VAT returns monthly, with both submission and payment due on the 17th of the month following the relevant reporting period.
Why 2026 Is the Year to Act
Mexico’s 2026 tax reform is part of a deliberate strategy to close gaps in digital economy taxation, and authorities are not softening their approach. The combination of higher withholding rates, stricter platform verification, and enhanced SAT data access means that operating without an RFC is increasingly costly, increasingly visible, and increasingly risky.
Sellers who get their RFC in place now — with proper legal representation, correct documentation, and clean monthly filings — will operate with full margin protection while competitors absorbing 36% withholding struggle to price competitively.
Mexico rewards compliance with access. Non-compliance now costs you before you even begin.
Ready to Register Your RFC and Enter the Mexican Market?
Navigating Mexico’s RFC registration as a foreign business requires legal representation, apostilled documentation, SAT appointments, and ongoing monthly filings. Done wrong, the delays alone can cost you an entire selling season.
At Safari Star | Global Business Services, we handle the full RFC registration process for international sellers — from legal representative appointment through to Seller Central verification and monthly SAT compliance.
Safari Star supports you with: RFC tax registration for foreign sellers · Legal representative appointment and apostille documentation · Amazon.com.mx Seller Central RFC verification · Monthly SAT VAT filing and compliance · Global market entry and LATAM expansion strategy
Whether you are entering Mexico for the first time or resolving an existing withholding issue, Safari Star gives you the compliance foundation to sell profitably in Latin America’s fastest-growing e-commerce market.
👉 Contact Safari Star today and grow your global e-commerce business in Mexico with full tax confidence.