What is the SAT's bulk download service?

It's the SAT service that lets you download issued and received CFDIs, their metadata, and withholding CFDIs automatically. You authenticate with the taxpayer's e.firma.

Which documents can I download with the API?

Active issued and received CFDIs, metadata for issued and received CFDIs (active and canceled), and issued and received withholding CFDIs.

Do I need to upload my e.firma?

Yes. The SAT requires the RFC's e.firma to authenticate download requests. Fiscalapi stores it encrypted and tracks its expiration automatically.

Can I automate the daily download?

Yes. You set up download rules by RFC and document type. The API runs the download, unzips the packages, and makes the XML files available over REST.

Bulk CFDI and XML download from the SAT

An API for bulk download from the SAT (Mexico's tax authority), the service that delivers the CFDIs a taxpayer issued and received. Get issued and received CFDIs (Mexico's electronic invoices), XML, metadata, and withholding CFDIs (the CFDIs that report taxes withheld from payments). Cover multiple RFCs (Mexico's taxpayer IDs) in one place.

Start integrating Read the documentation

Download types

Download every type of SAT document for each of your RFCs

Active issued CFDIs

For each RFC, download all issued invoices that are active (vigente: not canceled with the SAT).

Active received CFDIs

For each RFC, download all received invoices that are active.

Issued CFDI metadata

Metadata for issued CFDIs, both active and canceled.

Received CFDI metadata

Metadata for received CFDIs, both active and canceled.

Issued withholding CFDIs

Download every withholding CFDI you issued.

Received withholding CFDIs

Download every withholding CFDI you received.

Key features

01:00Daily

Automatic daily download

Set up download rules that fetch your RFCs' CFDIs automatically every day, with no manual work.

Configurable rules by RFC and document type
Automatic daily scheduling
Notifications when downloads complete
Real-time monitoring dashboard

ZIP48MB

XML

JSON

Processing package...XML + JSON

Automatic package processing

Fiscalapi processes the SAT's ZIP packages automatically and makes each CFDI available through the API.

Automatic ZIP package decompression
CFDI extraction, conversion, and storage
Packages available in XML, JSON, and ZIP formats
No manual processing required

SAT

Attempt 1

+1s

wait 1s

Attempt 2

+4s

wait 4s

Attempt 3

Automatic retries with exponential backoff

Automatic retries

Fiscalapi retries transient SAT errors automatically. You don't lose downloads to temporary failures.

Automatic retries with exponential backoff
Smart handling of SAT errors
Prioritized retry queue
Detailed logs of every attempt

TEST ENVIRONMENT

Simulated
SAT

Fiscalapi
Test

GET /api/v4/download-catalogs

GET /api/v4/download-rules

GET /api/v4/download-requests

Test environment with a simulated SAT

Validate your full integration in the test environment, which simulates the SAT download flow.

Full simulation of the SAT service
Same endpoints as production
Realistic test data
No e.firma (the SAT advanced electronic signature that identifies a taxpayer, formerly FIEL) needed for testing

.cerCertificate

.keyPrivate key

PasswordProtection

e.firma support

Manage e.firma credentials for multiple RFCs securely. The SAT requires them to authenticate your download requests.

Secure certificate storage
e.firma management by RFC
Automatic expiration checks
Private key encryption

Developer resources

Detailed documentation, official SDKs, and tools to help you integrate quickly.

Documentation

Integration guides, API reference, and code samples

GitHub

Official SDKs, examples, and open-source code

Postman

A ready-to-use collection to test every endpoint

Bulk CFDI download is billed per RFC and download type, starting at $99 MXN per month. See the Bulk CFDI download plans.

Frequently asked questions about bulk download

What is the SAT's bulk download service?: It's the SAT service that lets you download issued and received CFDIs, their metadata, and withholding CFDIs automatically. You authenticate with the taxpayer's e.firma.
Which documents can I download with the API?: Active issued and received CFDIs, metadata for issued and received CFDIs (active and canceled), and issued and received withholding CFDIs.
Do I need to upload my e.firma?: Yes. The SAT requires the RFC's e.firma to authenticate download requests. Fiscalapi stores it encrypted and tracks its expiration automatically.
Can I automate the daily download?: Yes. You set up download rules by RFC and document type. The API runs the download, unzips the packages, and makes the XML files available over REST.

Take the next step

Automate your SAT downloads

Start integrating See pricing