Mexico TIGIE Added: One API for US, Canadian, and Mexican Tariff Data

TradeFacts now covers the Mexico TIGIE — the Tarifa de la Ley de los Impuestos Generales de Importación y de Exportación. The same API that serves the US HTS and the Canadian Customs Tariff now also serves the full Mexican tariff schedule: 8,183 fracciones arancelarias across 97 chapters, sourced from the January 2026 SNICE release and updated nightly.

If your software handles trade across any combination of the three CUSMA countries, you now have a single integration point for all of it.

What the TIGIE Is

The TIGIE is Mexico’s official tariff schedule, analogous in structure to the US HTS and the Canadian Customs Tariff. Like both of those, it is built on the World Customs Organization’s Harmonized System — the first six digits are internationally shared, while the last two are Mexico-specific. The result is an 8-digit fraccion arancelaria that maps directly to a general import rate (IGI), an export rate (IGE), and a unit of measure.

The January 2026 reform is significant context. Mexico amended 1,463 tariff lines effective January 1, 2026 — raising MFN rates broadly across automotive parts, textiles, steel, plastics, and appliances, in some cases from 0% to 25–35%. The data served by TradeFacts reflects the post-reform schedule. Teams evaluating Mexico as a market or supply chain node are working with rates that changed materially at the start of this year.

Endpoints

The Mexico endpoints follow the same structure as the US and Canada endpoints. The base path is /api/mx/.

# Fraccion lookup (accepts with or without dots)
curl "https://tradefacts.io/api/mx/7201.10.01" \
  -H "X-API-Key: your_api_key"

# Keyword search (descriptions are in Spanish)
curl "https://tradefacts.io/api/mx/search?q=acero+laminado" \
  -H "X-API-Key: your_api_key"

# Full chapter retrieval
curl "https://tradefacts.io/api/mx/chapter/72" \
  -H "X-API-Key: your_api_key"

# Change log
curl "https://tradefacts.io/api/mx/changelog" \
  -H "X-API-Key: your_api_key"

A lookup on a fraccion returns the IGI (general MFN import rate), the IGE (export rate), and the unit of measure. Descriptions are in Spanish as published by SNICE — the same language in which Mexican customs documentation is filed.

{
  "fraccion": "7201.10.01",
  "chapter": "72",
  "description": "Fundión en bruto sin alear con un contenido de fósforo inferior al 0,5% en peso",
  "unit": "Kg",
  "igi": "35",
  "ige": "Ex."
}

A Note on T-MEC Preferential Rates

Under the T-MEC (the Mexican name for USMCA/CUSMA), goods originating in the United States or Canada generally enter Mexico at 0% duty, provided they meet the applicable rules of origin. These preferential rates are not stored as per-fraction columns in the TIGIE bulk data — they are governed by the treaty text itself. The IGI field in TradeFacts reflects the MFN (general) rate, applicable to non-FTA origin goods.

Data Source and Update Cadence

The data is sourced from SNICE (Sistema Nacional de Información de Comercio Exterior), the official publication arm of Mexico’s Secretaría de Economía. SNICE publishes the full TIGIE as a bulk Excel file, updated when new decrees are published in the Diario Oficial de la Federación (DOF). TradeFacts checks for new releases nightly at 03:00 UTC and diffs against the prior version. Changes are logged and available via the changelog endpoint.

Unlike the US HTS (updated on a fixed USITC schedule) and the Canadian Customs Tariff (annual CBSA release with periodic amendments), Mexico’s tariff schedule changes on a decree-by-decree basis. The 2026 reform was significant, but mid-year amendments are common — the nightly check catches them.

Access

Mexico endpoints are included in Tier 2 and above ($299/month). If you have an active trial, the endpoints are live on your key now. Full documentation is at tradefacts.io/docs.html.