Electronic Signatures in Singapore: The ETA, Singpass and the Company Stamp

The office manager of a twelve-person Singapore firm gets a lease renewal from the landlord's agent. It arrives as an e-signing link. Two lines below the link, the agent adds: "Please also chop the company stamp on page 4." The firm has never had a common seal, and the rubber stamp sits in a drawer. Does the e-signature count? Does the stamp have to be on there? If so, how do you put a stamp on a document that never gets printed?

Singapore law has a clear answer to the first question and almost nothing to say about the second. This guide covers both. It also covers the short list of documents where the clear answer stops applying.

This article is general information, not legal advice. Laws change and apply differently to each situation; consult a qualified Singapore lawyer for your specific case.

The rule: function over form

Singapore's Electronic Transactions Act 2010 (ETA) is technology-neutral. Where a rule of law requires a signature, an electronic signature can satisfy it if the method identifies the person and shows their intention about the information in the record, and if the method is reliable enough for the purpose. A typed name at the foot of an email, a drawn signature on a tablet and a click-through acceptance can all qualify in principle. Whether a given one holds up depends on the evidence around it.

In practice, the evidence matters more than the method:

Who clicked or typed. That usually comes down to account login, email control and any identity check the platform ran.
What they saw. Was it the final version? Can you show that the document wasn't changed afterwards?
That they meant it. An "I agree" step or a signing ceremony is better evidence than a stray name in a signature block.

A mainstream e-signing platform records all three in its audit trail. A PDF with a pasted signature image, emailed back and forth, records almost none of them. Both are "electronic signatures" in a loose sense. Only one is easy to prove.

The ETA also does not force anyone to accept electronic records. If your counterparty or a government agency insists on paper for a particular process, the Act doesn't override that.

Two tiers: electronic signature and secure electronic signature

The ETA separates ordinary electronic signatures from secure electronic signatures (SES). A secure electronic signature meets stricter conditions. Roughly, it has to be unique to the signer, capable of identifying them, created in a way under their sole control, and linked to the record so that any change to the record would invalidate the signature. The practical payoff is evidential. In proceedings involving an SES, the court presumes, unless there is evidence to the contrary, that the signature belongs to the person it correlates to and that they affixed it intending to sign or approve the record.

Most day-to-day business signing doesn't need that presumption. A supplier agreement signed on a reputable platform, with a clean audit trail, rarely gets disputed on authenticity. The presumption earns its keep when the stakes are high, the parties don't know each other, or one side has reason to expect a later "that wasn't me".

Sign with Singpass

Singapore's government made the top tier unusually easy to reach. Sign with Singpass lets residents sign documents with the Singpass app they already use for government services. The official developer documentation states that signatures made with it are regarded as secure electronic signatures under the ETA. It also says the service is currently free, both for organisations that integrate it and for users. Many commercial e-signing platforms used in Singapore offer it as a signing option. That's usually how a business meets it: you pick "Sign with Singpass" inside the platform you already use.

Two caveats. First, it identifies an individual. When a director signs for a company with Singpass, the signature proves which director signed. It does not prove they had authority to bind the company, which is still a company-law question. Second, the government's own documentation reminds users that the ETA's excluded matters still apply. An SES does not get a will or a property transfer past the exclusions.

What still cannot be signed electronically

The ETA's First Schedule lists matters that sit outside its signature and record provisions. As currently in force, the main ones are:

Wills. Creating or executing a will.
Trusts and powers of attorney. Creating, performing or enforcing indentures, declarations of trust and powers of attorney. Implied, constructive and resulting trusts are exempt from the exclusion, and so are lasting powers of attorney under the Mental Capacity Act, which have their own electronic route.
Immovable property. Contracts for the sale or other disposition of immovable property or an interest in it, and conveyances of immovable property.

The list has been getting shorter. A 2021 amendment removed negotiable instruments, bills of lading and other documents of title from the exclusions and introduced a framework for electronic transferable records, which is why trade documents in Singapore can now go paperless. In October 2025 Parliament passed the Electronic Conveyancing and Other Matters Act 2025. It amends the ETA to let steps in a property conveyance be done electronically through prescribed systems such as the Singapore Land Authority's Digital Conveyancing Portal. At the time of writing, Singapore Statutes Online still lists that Act as not yet commenced. Until it is, property documents follow the existing rules. Check the commencement status before you assume otherwise.

For most businesses, the practical reading is simple. Commercial contracts, NDAs, employment letters, quotations, purchase orders, board and shareholder resolutions, and most corporate paperwork can be signed electronically. Wills, trust deeds, general powers of attorney and property transfers need specialist handling.

Where the company stamp fits

Singapore made the common seal optional in 2017. Companies can execute documents, including deeds, by authorised signatures (see company seals in Singapore for the details). So the stamp is never what makes an electronically signed document binding in Singapore. The signatures of people with authority do that.

Counterparties still ask for it, though, as the landlord's agent did. Banks, landlords, tender desks and partners across the region often expect a "chopped" look even on PDFs. The stamp image is a presentation layer that tells a clerk the document came through the company. It's worth giving them, but it should be added the right way:

Add the stamp before anyone signs, not after. Most e-signing platforms seal the finished PDF with a digital signature or certificate of completion. If you open the signed file afterwards and paste an image onto it, you have edited a signed document. PDF readers may flag the signature as invalid or the document as altered, which defeats the audit trail you were relying on. Put the stamp image on the page while you prepare the document, then send it for signature.
Put it next to the signature field, not on top of it. A stamp that overlaps the signature box can obscure the signature, or break the platform's field placement.
Use a flattened PDF when you send stamped documents out. A loose, high-resolution stamp PNG attached to an email is an invitation to reuse. More on that in the seal file management guide.

When there's no e-signing platform involved, for example a stamped invoice or quotation, the stamp image is simply what the recipient expects to see. Treat it as you would a letterhead. It identifies the document but doesn't authenticate it.

A practical decision table

Commercial contract, NDA, supplier agreement: E-signature on a reputable platform; Singpass for higher-stakes or unfamiliar counterparties
Board or shareholder resolution: E-signature by directors/members is common; check the constitution for any procedural requirement
Invoice, quotation, delivery order: No signature legally needed; a stamp image is presentation, often expected by regional counterparties
Bank account forms and mandates: Follow the bank's own process; many now run onboarding digitally, some still ask for a stamp
Lease or tenancy agreement: E-signature is commonly used for tenancy agreements; property sales and conveyances are a separate matter (see exclusions)
Will, trust deed, general power of attorney: Outside the ETA's general rules; get legal advice
Sale or conveyance of property: Excluded today; watch for commencement of the 2025 e-conveyancing changes

Common mistakes

Treating the stamp as the authority. An e-signed contract with a stamp image, signed by someone without authority, does not bind the company. An unstamped one signed by authorised directors generally does.
Stamping after signing. As described above, this can make an otherwise solid signed PDF look tampered with.
Assuming Singpass solves authority. It proves identity, and that's all it proves. Board approval or a signing mandate still has to exist.
Forgetting the exclusions on cross-border deals. A Singapore company signing a property-related document for another jurisdiction faces that jurisdiction's rules, which may be stricter.
Mixing up "electronic signature" and "signature image". A scanned signature pasted into Word is a weak electronic signature with no audit trail. Use a platform when it matters.

Where this tool fits

The seal generator creates company stamp graphics for Singapore-style round or rectangular stamps, with the company name, UEN and "SINGAPORE" on the rim. You can export them as transparent PNG for documents or SVG for a stamp maker, and the PDF stamping tool places a stamp on a PDF before you send it for signature. None of that is an electronic signature. The generator doesn't verify identity, record intent or detect tampering. For anything that needs legal effect, use an e-signing platform, and never use a generated stamp to imitate an organisation you don't represent.

FAQ

Is an e-signature legally valid in Singapore? Generally yes. Under the ETA an electronic signature can satisfy a legal signature requirement if it identifies the signer, shows their intent, and is reliable enough for the purpose. The First Schedule exclusions are the main exception.

Do I need Sign with Singpass? No. It gives you the stronger presumptions of a secure electronic signature, which helps in disputes, but ordinary e-signatures are valid for most business documents.

Does a company need to stamp an e-signed contract? Not as a matter of law. Some counterparties ask for it, and if so, add the stamp image before signing.

Can a deed be signed electronically? It depends on the deed. Property conveyances and powers of attorney are excluded today. For other deeds, practice has moved towards electronic execution, but formalities such as witnessing matter, so take advice for the specific instrument.

Can I e-sign a lasting power of attorney? LPAs follow the Mental Capacity Act and the Office of the Public Guardian's own process, including its online channel, rather than a general e-signing platform.

Comparing jurisdictions? Company seal requirements by country puts Singapore next to eleven other jurisdictions in one dated, sourced table. For the neighbours in this series, see Hong Kong and Taiwan.

Sources: Electronic Transactions Act 2010 (Singapore Statutes Online) · Sign with Singpass developer documentation · Singapore Land Authority: Electronic Conveyancing and Other Matters Bill