State IntegrityReceipts, not verdicts

World · Mexico · Questions

Finding Mexican federal law

The Diario Oficial de la Federación (DOF) is Mexico's official gazette. Federal laws, decrees, regulations, official standards (NOMs), the yearly tax rules and the minimum wage resolution only take effect once published there. The Chamber of Deputies keeps consolidated texts of federal laws in force, with the date of the last reform.

What it publishes

Key datasets

APIs and downloads

When it publishes

The DOF publishes a morning edition each working day, with evening and extraordinary editions when needed. Tax rules for the year are usually published in late December.

How to use it to check a claim

  1. Check the DOF publication date and the date a measure takes effect, which can differ.
  2. For a law's current wording, use the consolidated text and check its 'última reforma' date.

Common mistakes

Where are Mexico's income tax tables?

Annex 8 of the yearly Miscellaneous Tax Resolution, published in the DOF; for 2026 it was published on 28 December 2025.

Questions answered using this source

Links checked 14 October 2026. This page describes what the source publishes and gives no verdict on any claim.