Legal framework in Mexico
Mexico has recognized electronic signatures since the 2003 reform of the Commercial Code (articles 89–114) and the 2012 Advanced Electronic Signature Law. NOM-151-SCFI-2016 governs data-message retention, and the Ministry of Economy oversees certification service providers.
Legal framework
Commercial Code + Advanced Electronic Signature Law
What makes a signature valid in Mexico?
To carry evidentiary weight a signature must be attributable to the signer and tamper-evident. Firmiu records IP, device, location and a verification code for every signature, producing an audit trail that backs the document before a Mexican court.
How to sign documents in Mexico
Upload your PDF
Upload the document and enter the name and email of the person who must sign.
The signer receives a link
They get an email with a unique link and a verification code.
Signed document
The PDF is signed with its audit trail, ready to download.
Frequently asked questions
- Are electronic signatures legal in Mexico?
- Yes. The Commercial Code and the Advanced Electronic Signature Law have granted them full legal validity for over two decades.
- Are they valid in court?
- Yes. A document signed electronically with a solid audit trail (IP, date, device and verification) is admissible as evidence.
- What documents can I sign?
- Service contracts, leases, employment agreements, quotes and most commercial and civil documents.
Electronic signature in other countries
Start signing in Mexico
Create your free account and sign your first document in minutes.
Create free account