Legal framework in Uruguay
Law 18,600 of 2009 recognizes the admissibility, validity and effectiveness of electronic documents and signatures. It distinguishes ordinary electronic signatures from advanced ones — the latter carrying the same effect as a handwritten signature — under AGESIC's Electronic Certification Unit.
Legal framework
Law 18,600 (2009)
How the legal framework evolved in Uruguay
2009
Law 18,600: Uruguay recognizes electronic documents and distinguishes ordinary from advanced signatures.
2010s
The chip-based ID card brings advanced electronic signatures to the whole population.
2020s
AGESIC consolidates Uruguay as a regional e-government leader; most State procedures run online.
Types of electronic signature in Uruguay
Ordinary electronic signature
Electronic data identifying the signer (Law 18,600). It is valid between private parties; its effectiveness is proven with evidence such as Firmiu's audit trail.
Advanced electronic signature
With a certificate from a provider accredited before the Electronic Certification Unit (AGESIC). It has the same effect as a handwritten signature on public or private documents.
Digital identity card
The Uruguayan ID card includes a chip with certificates enabling advanced electronic signatures. Useful for government procedures; unnecessary for most private contracts.
What makes a signature valid in Uruguay?
An ordinary electronic signature is valid between private parties; the advanced one is equivalent to a certified handwritten signature. Firmiu backs every signature with a full audit trail.
Which documents can you sign in Uruguay?
Can be signed electronically
- Service agreements
- Lease agreements
- Employment contracts
- Non-disclosure agreements (NDAs)
- Estimates and purchase orders
- Authorization letters
Usually require a notary or handwritten signature
- Real-estate sales (they require a public deed)
- Wills
- Acts requiring a public deed
- Civil-status acts
These lists are indicative: the document type and applicable law determine each case.
How to sign documents in Uruguay
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 Uruguay?
- Yes. Law 18,600 has recognized them since 2009.
- Difference between ordinary and advanced signatures?
- The advanced one meets additional technical requirements and equals a handwritten signature; the ordinary one is valid between private parties.
- Who regulates the system?
- The Electronic Certification Unit, part of AGESIC.
- When do I need an advanced electronic signature in Uruguay?
- When you want automatic equivalence with a handwritten signature or a specific procedure requires it. For everyday private contracts, an ordinary signature with an audit trail is valid.
- Can I sign a lease electronically?
- Yes. Leases can be executed electronically; the audit trail documents authorship and date.
- Does the DGI require electronic signatures on my contracts?
- No. Electronic invoicing (CFE) uses certificates specific to that system; your private contracts don't go through the DGI.
- Is an online-signed document valid judicial evidence?
- Yes. Law 18,600 recognizes the admissibility and evidentiary effectiveness of electronic documents.
Official sources
The information on this page is general in nature and does not constitute legal advice. The validity of an electronic signature depends on the applicable legislation and the document type; for specific cases, consult a legal professional.
Guide reviewed and updated: July 2026.
Electronic signatures by profession
Guides for the industries that sign the most documents in Uruguay.
Related guides
Are electronic signatures legal? What you need to know
Electronic signatures are legal across Latin America, Spain and the United States. Here's what makes them valid and where they're recognized.
Types of electronic signature: simple, advanced and qualified
Not all electronic signatures are the same. Here are the three levels and which one you need for each document.
What documents can you sign electronically
Electronic signatures work for far more documents than you'd think. Here are the most common ones and the exceptions.
Electronic signature in other countries
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