eSignature Legality in Argentina
Electronic signatures have been legally recognized in Argentina since 2001, under a law that draws a sharper, more consequential legal line between "digital" and "electronic" signatures than most countries in the region.
Last reviewed: July 2026
Governing Law
Ley 25.506 — Ley de Firma Digital (Digital Signature Law)
Enacted in November 2001, Ley 25.506 recognizes both the digital signature (firma digital) and the electronic signature (firma electrónica), giving each a distinct legal effect. This is the single most important thing to understand about Argentine law: the two terms aren't interchangeable, and which one applies to your document changes who has to prove what in a dispute.
Firma Digital vs. Firma Electrónica
Firma Digital (Digital Signature) — Article 2
The result of applying a mathematical procedure to a digital document using data known exclusively to, and under the absolute control of, the signer. It must be independently verifiable by third parties in a way that identifies the signer and detects any alteration made after signing. Under Article 7, a digital signature carries a legal presumption of authorship: it's presumed to belong to the holder of the digital certificate that verifies it, unless proven otherwise.
Firma Electrónica (Electronic Signature) — Article 5
Any set of electronic data logically linked to other electronic data, used by the signer for identification, that doesn't meet all the technical requirements to qualify as a firma digital. Crucially, if a firma electrónica is challenged, the burden of proof falls on whoever is relying on it to establish its validity, the opposite presumption from a firma digital.
This means: for most everyday business contracts, a firma electrónica (like Inkfree's standard signing flow, backed by a strong audit trail) is fully valid and enforceable, but you carry the burden of proving it if challenged. A firma digital, requiring a licensed certifier (certificador licenciado), flips that burden in your favor automatically.
When Argentine eSignatures May Not Be Accepted
Article 4 of Ley 25.506 excludes the law's application from:
- Personal and family law matters (dispositions mortis causa, i.e., wills and inheritance)
- Acts requiring personal presence by law
- Documents requiring specific formalities incompatible with digital signature use, whether by legal requirement or agreement between the parties
- Negotiable instruments in certain contexts
How Inkfree Meets Argentine Requirements
Firma Electrónica support
Inkfree's signing flow satisfies Article 5's identification requirement for the large majority of Argentine commercial contracts
Tamper-proof audit trail
provides exactly the evidence needed to meet the burden of proof a firma electrónica carries under Article 5, timestamped, signer-linked, and tamper-evident
OTP and passcode authentication
strengthens signer identification for higher-value agreements
Certificate of Completion
a permanent, downloadable signing record for every document
Official Sources
This page is for general informational purposes only and isn't legal advice. Consult a qualified Argentine lawyer for guidance specific to your situation, particularly for high-value agreements where a firma digital's automatic presumption may be worth pursuing.
Questions, answered.
Common questions about eSignature legality in Argentina.
Yes, as a firma electrónica under Article 5 of Ley 25.506, valid for the large majority of commercial contracts. Because it doesn't carry the automatic authorship presumption a firma digital does, Inkfree's audit trail is what supports its validity if ever challenged.
Both are legally valid, but they place the burden of proof differently. A firma digital (from a licensed certifier) is presumed authentic automatically. A firma electrónica is presumed valid too, but if someone disputes it, you need to prove it actually came from the signer.
Not usually. Most commercial contracts, NDAs, and vendor agreements are enforceable with a firma electrónica. Firma digital becomes more valuable for high-value transactions or when you want the strongest possible evidentiary footing without having to prove anything.
No. Personal and family law matters, including wills and inheritance dispositions, are specifically excluded from Ley 25.506 and require traditional formalities.
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