Will Your Indian E-Signature Be Accepted Abroad? A Country-by-Country Matrix for Indian Businesses
Will a counterparty in the EU, US, UK, Singapore or UAE accept an Aadhaar eSign or an Indian DSC? A decision matrix for Indian businesses, with the statutes behind each answer.
Indian businesses have three common ways to sign electronically: a Digital Signature Certificate (DSC) issued by a licensed Certifying Authority, an Aadhaar-based eSign, and a platform-based signature (typed, drawn or click-confirmed with an audit trail). When the counterparty is in another country, the question is not whether e-signatures are legal there, almost everywhere they are, but which Indian method that country's law will treat as equivalent to a handwritten signature, and when a foreign party can reasonably insist on something more. This matrix answers that for India's main trading partners, as of October 2026.
First, what each Indian method is under Indian law
- DSC (digital signature). Section 3 of the IT Act, 2000: authentication by asymmetric cryptography and hash function, with a certificate issued by a licensed Certifying Authority under the Controller of Certifying Authorities. Since 1 January 2021 only Class 3 certificates are issued for signing. ****
- Aadhaar eSign (electronic signature). Section 3A read with the Second Schedule, which lists the e-authentication technique using Aadhaar e-KYC services (notified by G.S.R. 61(E), 27 January 2015). A one-time digital signature certificate is issued to the signer after Aadhaar authentication.
- Platform signature. Not a technique in the Second Schedule, so not an "electronic signature" under section 3A. It can still evidence agreement for a contract formed electronically (section 10A) and is proved as an electronic record under section 63 of the Bharatiya Sakshya Adhiniyam, 2023. It does not satisfy a statutory signature requirement under section 5.
The matrix
| Counterparty | Governing law on e-signatures | Tiers recognised | Indian DSC | Aadhaar eSign | Platform signature | Watch-outs |
|---|---|---|---|---|---|---|
| European Union | eIDAS Regulation (EU) 910/2014, Art. 25; amended by Regulation (EU) 2024/1183 | Simple, advanced, qualified (QES) | Accepted as an electronic signature; not a QES unless the CA is an EU qualified trust service provider | Accepted as an electronic signature; not a QES | Accepted as a simple electronic signature | Where EU law requires a handwritten signature, only a QES is deemed equivalent (Art. 25(2)); counterparties may insist on QES for those documents |
| United States | ESIGN Act, 15 U.S.C. § 7001; UETA in most states | Technology-neutral | Accepted | Accepted | Accepted | Some document types excluded by § 7003 (wills, certain family-law and court documents); consumer consent rules for electronic records |
| United Kingdom | Electronic Communications Act 2000, s. 7; common law | Technology-neutral (UK eIDAS for trust services) | Accepted | Accepted | Accepted | Deeds have witnessing formalities; land-registry documents have their own rules |
| Singapore | Electronic Transactions Act 2010 | Electronic signature; "secure electronic signature" for presumptions | Accepted | Accepted | Accepted | First Schedule excludes certain documents |
| UAE | Federal Decree-Law No. 46 of 2021 on Electronic Transactions and Trust Services | Electronic, reliable, qualified | Accepted as electronic signature; qualified status depends on licensed UAE trust provider | Accepted as electronic signature | Accepted | Real-estate and certain personal-status documents excluded |
How to read it
- For ordinary commercial contracts (MSAs, supply agreements, NDAs), every jurisdiction in the table recognises all three Indian methods as valid electronic signatures. The main variable is evidence: keep the audit trail.
- Where a foreign law requires a handwritten signature for a document type (some EU documents, UK deeds), an Indian DSC or Aadhaar eSign may not be treated as equivalent. The EU's answer is a QES from an EU-qualified provider; the UK's is its own formalities. Plan for a parallel execution method for those documents.
- Where the Indian side needs a statutory signature (section 5 of the IT Act), use DSC or Aadhaar eSign; a platform signature will not do, even if the foreign party is happy with it.
- Excluded documents exist on both sides. India's First Schedule (as amended 26 September 2022) still excludes most negotiable instruments, most powers of attorney, trusts and wills. Each foreign regime has its own list.
A practical execution clause for mixed-method signing
"Each party may execute this Agreement by the electronic signature method specified against its name in the signature block. The parties agree that a Digital Signature Certificate issued under the Information Technology Act, 2000, an Aadhaar-based eSign, a qualified electronic signature under Regulation (EU) No 910/2014, or an electronic signature applied through [platform] shall each be a valid signature for the purposes of this Agreement."
Where Legatio fits. Legatio supports execution with Aadhaar eSign and DSC and records the audit trail for each signer, including counterparties signing from outside India. Whether a foreign law requires a particular tier for a particular document is a legal question for that jurisdiction.
Position stated as of October 2026. General information; for documents governed by foreign law, confirm the required signature tier with local counsel.