How does a company, which is an artificial legal person, actually sign a contract or a deed? For decades the answer in Singapore was the common seal, a metal press that stamped the company’s mark onto important documents. Since 2017, that requirement has gone. A Singapore company can now execute documents, including deeds, by signature alone under sections 41A and 41B of the Companies Act 1967. This guide explains how a company validly signs documents today, when a deed is different from an ordinary contract, and what directors and secretaries should put in place so their company’s signatures are never open to challenge.
It is written for directors, company secretaries and business owners who sign agreements on behalf of their company and want to be sure those signatures are legally effective. Getting execution right is not a technicality: a document signed the wrong way can be unenforceable.
The common seal is now optional
Before the Companies (Amendment) Act 2017, which took effect on 31 March 2017, many documents had to be executed under the company’s common seal. That reform removed the mandatory requirement. Under section 41A, a company may have a common seal but need not have one. A company that keeps a seal can still use it, but it is no longer compelled to, and a document is not invalid simply because no seal was affixed.
This modernised Singapore law in line with commercial practice, where signatures, not wax and metal, are the normal way business is done. It also removed a common source of delay and error, since a missing or wrongly applied seal used to be a frequent reason for documents being questioned.
How a company executes documents without a seal
The Act sets out who may sign on the company’s behalf so that the signature binds the company. For an ordinary document, a company acts through its authorised officers, and the key provisions govern who those officers are and how they sign.
Ordinary documents and contracts
A company can enter into contracts through a person acting under its authority, express or implied. In practice, the board authorises signatories, often a director, or a director and the company secretary, through a board resolution. The counterparty is entitled to rely on the apparent authority of those who sign, but a company should always make sure its signatories are properly authorised internally.
Deeds under section 41B
A deed is a special category of document, used where the law requires it (for example, certain property transactions and powers of attorney) or where the parties want a document to be binding without consideration. Section 41B lets a company execute a document expressed as a deed without a common seal by signing it in one of three ways: (a) by a director and the secretary; (b) by two directors; or (c) by a director in the presence of a witness who attests the signature. A document signed in accordance with section 41B has the same effect as if it had been executed under the common seal of the company.
Deed or ordinary contract: why the distinction matters
Whether a document is a deed or an ordinary contract changes how it must be signed and how long a claim on it survives.
An ordinary contract generally needs consideration, something of value passing between the parties, to be binding. A deed does not: it can be binding even where nothing is given in return, which is why guarantees, gifts and certain property documents are often executed as deeds. Deeds also usually carry a longer limitation period for bringing a claim. Because the stakes are higher, the execution formalities in section 41B are stricter than for an ordinary contract. If a document is meant to be a deed but is not executed as one, it may take effect only as a simple contract, or not at all, so the intended legal effect can be lost.
If a company still keeps a common seal
Some companies retain a common seal for tradition, for dealings in jurisdictions that still expect one, or for certain instruments such as share certificates. Where a seal is used, its application should be authorised in accordance with the company’s constitution, typically affixed in the presence of authorised persons who sign to witness it. A company that keeps a seal should have a clear internal rule on who may authorise and witness its use, recorded in the board minutes. Using a seal remains valid; it is simply no longer the only route.
Practical steps for directors and secretaries
Clean execution comes down to a few habits. First, decide at the outset whether a document is intended to be a deed or an ordinary contract, because that drives how it must be signed. Second, keep a standing board resolution or authority matrix identifying who may sign what, so signatories are always properly authorised, consistent with the company’s resolutions and constitution. Third, for deeds, follow one of the three section 41B methods exactly, and where a single director signs, ensure a witness attests. Finally, retain the executed originals with the company’s records. These small disciplines protect the company from later arguments that a document was not validly signed, and they support the directors’ duty to act with reasonable care.
Frequently asked questions
Does my company still need a common seal?
No. Since 31 March 2017, a common seal is optional. A company can execute documents, including deeds, by signature under sections 41A and 41B. You may keep a seal if you wish.
Can a sole director sign a deed?
Under section 41B, a single director can execute a deed if the signature is made in the presence of a witness who attests it. Otherwise, two directors, or a director and the secretary, may sign.
Is a signature-executed deed as good as one under seal?
Yes. A document executed in accordance with section 41B has the same effect as if it had been executed under the company’s common seal.
Who should authorise our signatories?
The board. A resolution or authority matrix identifying authorised signatories, kept with the company’s minutes, is best practice and avoids later disputes about authority.
How we can help
Execution formalities are easy to overlook until a counterparty or a court questions them. Raffles Corporate Services helps companies set up clean signing arrangements, draft the board resolutions that authorise signatories, and make sure deeds are executed correctly under section 41B so their legal effect is beyond doubt. If you would like your company’s signing practices reviewed, or help distinguishing when a document should be a deed, we would be glad to assist.
This article is for general information only and does not constitute legal advice. For advice on a specific document or transaction, please consult a qualified Singapore Advocate and Solicitor. The governing provisions are in the Companies Act 1967, and the reform is explained by ACRA.
— The Editorial Team, Raffles Corporate Services