eSignature Legality Guide

eSignature Legality in Brunei

Electronic signatures are recognized in Brunei under Electronic Transactions Act (Cap. 196) (2008). Their legal effect, evidentiary weight and equivalence to handwritten signatures are determined by the signature method, the transaction and the applicable statutory formalities or exclusions.

E-Signature Legality Summary

This guide explains the electronic-signature framework in Brunei, including the governing laws, legal effect, accepted signature methods, validity requirements, exclusions and practical business uses.

Applicable Laws

Electronic Transactions Act (Cap. 196) (2008)

Legal Status

Electronic records and signatures receive legal recognition in Brunei under Electronic Transactions Act (Cap. 196) (2008). The signing process must also satisfy every document-specific rule on identity, evidence, delivery, retention, witnessing, notarization, registration or filing.

Regulatory Authority

The competent regulators are the Authority for Info-communications Technology Industry of Brunei Darussalam (AITI) and the Attorney General’s Chambers (AGC), Brunei.

Legal Recognition (Effect)

The legal effect of an electronic signature is assessed under Electronic Transactions Act (Cap. 196) (2008). The assessment covers signer intent, reliable attribution, integrity of the signed record and compliance with every prescribed form for the document or transaction.

Accepted Types of Electronic Signatures

Electronic signature types recognized in Brunei include: ES, DS, SES, SDS

An Electronic Signature (SES) is an electronic record made or adopted with the intention of signing, verifying, or approving an electronic record. A Digital Signature is a transformation created using the private key corresponding to the signatory’s public key that enables determination of whether the original electronic record has been altered after the transformation. A secure Electronic Signature (SES) must be unique to its user, enable identification of the user, be created by the user, be associated with the electronic record, and permit detection of tampering, pursuant to Article 17 of the Electronic Transactions Act (ETA). A secure Digital Signature must be created during the validity period of the certificate and be verifiable using the public key. The public key must also be accurately bound to the individual’s identity either by a certificate issued by a certified or approved authority, including a certification authority, a certified foreign certification authority, or a certification authority approved by the Minister, or by the parties’ express agreement to use the Digital Signature as a security procedure with verification through the public key. These requirements are set out in Article 20 of the Electronic Transactions Act (ETA).

Electronic Signature (ES): In the form of an electronic record and signed or adopted with the intention of authenticating or approving the electronic record.

  • Digital Signature (DS):

Secure Electronic Signature (SES): (Section 17, ETA) This is a type of signature to which the law grants a presumption of special legal effect. It is essentially an electronic signature that satisfies specific statutory security standards.

  • Secure Digital Signature (SDS):

(Section 20, ETA) An electronic signature that satisfies Section 20 of the ETA, usually a 'secure digital signature' implemented through digital signature technology.

Legal Requirements for Electronic Signatures

Digital Signature (DS): (a) Whether the transformation was created using the private key corresponding to the signer's public key; and (b) Whether the initial electronic record has been altered since the transformation was made.

Secure Electronic Signature (SES): (Section 17, ETA) Requirements: Unique to the user; identifying the user; created by the user; linked to the electronic record; tamper-proof.

Secure Digital Signature (SDS): (Section 20, ETA) Requirements: (a) Created during the operational period of a certificate and verified by the public key; (b) The public key is accurately bound to the person's identity through any of the following: a certificate issued by a licensed or approved authority (CA, recognized foreign CA, and certification authorities approved by the Minister); or the parties have expressly agreed to use digital signatures as a security procedure and verified through a public key.

Limitations and Exceptions

(a) The creation of any instrument or document under any written law relating to Islamic Law;

(b) The creation or execution of a will under any written law relating to wills;

(c) Negotiable instruments;

(d) The creation, performance, or execution of an indenture, a declaration of trust, or a power of attorney, with the exception of constructive and resulting trusts;

(e) Any contract for the sale or other disposition of immovable property or any interest in such immovable property;

(f) The conveyance of immovable property or the transfer of any interest in such immovable property;

(g) Documents of title relating to immovable property.

Industry Applications and Typical Use Cases

1. Industry: Government and Public Services

Reason for using electronic signatures: The Brunei government vigorously promotes the 'Digital Government' strategy, achieving identity authentication and document signing through the e-Darussalam and OnePass systems to improve public service delivery efficiency and reduce paper-based processes.

Common usage scenarios: Digital identity authentication for civil servants, business license renewal applications, tax filings (such as the STARS system), e-procurement bidding, online permit applications."

2. Industry: Banking and Financial Services

Reason for using electronic signatures: To achieve non-face-to-face customer service (eKYC) and full digitalization of banking operations, major banks in Brunei (such as Bank Islam Brunei Darussalam, BIBD) have launched mobile applications integrated with digital signatures to accelerate approval processes and enhance customer experience.

Common usage scenarios: Account opening documents for new customers, digital contract signing (such as contracts within the Olive App), financing and loan approvals, credit card applications, real-time payment authorizations.

3. Industry: Commerce and Supply Chain (B2B)

Reason for using electronic signatures: The Electronic Transactions Act grants electronic records and signatures the same legal effect as written documents. Enterprises use electronic signatures to shorten transaction cycles and facilitate cross-border trade and supplier management.

Common usage scenarios: Sales contracts, purchase orders (PO), supplier agreements, Master Service Agreements (MSA), Non-Disclosure Agreements (NDA), Intellectual Property licensing agreements.

DISCLAIMER: The information on this page is provided for general informational purposes only and does not constitute legal advice. Laws, regulations and regulatory guidance are updated over time, and their application is determined by the facts and circumstances of each transaction. Consult qualified legal counsel in the relevant jurisdiction before relying on this information.

Last updated: March 4, 2026

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