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Registrations & filings

How to file a broker authorization (encargo conferido) with the SAT

The encargo conferido authorizes your customs broker to clear cargo on your behalf. Step-by-step filing on the tax authority’s portal.

Updated July 28, 2026

The broker authorization (encargo conferido) is the electronic filing where you, as the importer, tell the tax authority (SAT) which customs broker is allowed to clear your cargo. Without it, your broker cannot transmit customs entries in your name — it’s one of the requirements that stalls a first import most often.

What you need first

  • An active RFC (Mexican tax ID) and enrollment in the importers registry (padrón)
  • A valid e.firma (Mexico’s e-signature, formerly FIEL) for the company or individual
  • The license number (patente) of the customs broker you’re authorizing (your brokerage gives it to you)

Step by step, with the portal’s actual screens

The screenshots come from the SAT’s official broker-authorization guide — these are the real screens of the filing. The portal runs in Spanish; each caption tells you what you’re looking at.

  • Go to sat.gob.mx → RFC filings → the Importers & Exporters Registry minisiteMaterial adicionalActualiza tus Encargos Conferidos (“update your broker authorizations”) → Acceder.
SAT Importers and Exporters Registry minisite, Material adicional section with the Actualiza tus Encargos Conferidos option.
The filing lives in the registry minisite, under Material adicional (“additional material”).
  • Log in with RFC and password or your e.firma.
  • The form loads your data. Under Encargos que se confieren (“authorizations granted”), type the broker’s license number (patente) and hit the search button — if the license is valid, the broker’s details appear automatically.
Encargos que se confieren section with the license number field and its search button.
Type the license and search: the broker’s details fill themselves in. Verify them.
  • Pick the authorization’s termIndefinida (open-ended), Un año (one year) or Otra (custom range) — and click Agregar. Repeat for every license you need (rule 1.2.6 of the foreign-trade rules).
Broker details confirmed, term options Indefinida, Un año and Otra, and the Agregar button.
The open-ended term is revocable anytime; you can also cap it.
  • Review the authorizations table and click Continuar; a summary of the request appears — if everything checks out, Confirmar.
Summary of the broker-authorization update request with the license table and the Confirmar button.
The summary lists each license with its term and movement before you sign.
  • Sign with your e.firma (.key, .cer and password), click Concluir solicitud and download your receipt.
  • Your broker then has to accept the authorization from their own portal access — give them a heads-up so the loop gets closed (until then, the status shows as Pendiente).

Common mistakes

  • Expired e.firma: renew it first; it’s the #1 cause of rejection.
  • Typing the license number wrong: confirm it in writing with your brokerage.
  • Forgetting the broker’s acceptance: the authorization doesn’t take effect until they accept.
  • A suspended importers registry: the authorization requires your registry to be active.

How long does it take?

The filing itself is instant; the broker’s acceptance usually closes the same day. Plan on 1-2 business days end to end.

Rather have us do it with you? Our team runs this filing every day. Write to us and we’ll walk you through it step by step.