How companies execute documents under section 127 of the Corporations Act

A company is a legal person, but it has no hands. Every time your company needs to enter a contract, lease, guarantee, deed or finance document, a human being has to sign on its behalf, and the law has to be satisfied that the person signing was entitled to bind the company. Section 127 of the Corporations Act 2001 (Cth) is the provision that makes this work. It sets out the signature combinations that count as the company itself executing a document, and it works together with a set of statutory assumptions that protect the other side of the deal.

Get the mechanics right and documents can be signed in an afternoon, often electronically, with no witnesses and no production of board minutes. Get them wrong and a counterparty can refuse to settle, a lender can refuse to fund, or a document you believed was binding turns out not to be. This guide explains how s 127 operates in practice, where electronic signing fits in, and the traps that most often catch directors and business owners.

Why the rule exists and who it involves

A company exercises its powers through people: directors, the company secretary, and other officers and agents. Before the current framework was simplified, proving that a signature actually bound the company could mean digging out board minutes, reading the constitution and establishing who held which office on the day. Section 127 removes most of that friction. If a document is signed in one of the combinations it lists, the law treats it as executed by the company itself, and the other party is entitled to assume it was done properly without inspecting your internal records.

Four parties matter in this system:

The company officers: the directors and company secretary whose signatures make up a valid s 127 execution.
The counterparty: the customer, supplier, lender or investor who relies on the document, and who is protected by the assumptions in s 129.
ASIC: the public register against which officer appointments are checked when there is any doubt.
A court: the last resort if a signature is ever challenged, and the place where the statutory assumptions do their most important work.

The signing combinations that bind the company

Under s 127(1) of the Corporations Act 2001 (Cth), a company can execute a document without using a common seal if it is signed by any of the following:

Two directors: the most common combination, and the one most counterparties expect to see.
A director and a company secretary: valid only if the company actually has a secretary, and the person signing is that secretary.
A sole director of a proprietary company: the sole director can sign alone, but only if the company has no company secretary, or the director is also the sole company secretary.

The third combination matters more than it used to. Before the Corporations Amendment (Meetings and Documents) Act 2022 (Cth), a sole director could sign alone under s 127(1) only if they were also the company secretary. The 2022 reforms extended the rule so that a sole director of a proprietary company can execute documents in their own name even where there is no secretary at all.

A subtle point follows. If your proprietary company has a sole director but a separately appointed secretary who is not the director, neither paragraph (a) nor (c) applies: the director cannot sign alone, and both the director and the secretary must sign to satisfy paragraph (b). Checking the current ASIC record before you draft the signature block avoids this trap.

The common seal route

Execution with a common seal is now rare but still available. Under s 127(2), a company with a common seal executes a document by fixing the seal to it, with the fixing witnessed by the same combinations of officers: two directors, a director and a secretary, or a sole director in the circumstances above. Since the 2022 reforms the witnessing can happen electronically, with the witness observing the fixing of the seal by electronic means, signing the document and indicating that they observed it. Most companies abandoned the seal years ago, but s 127 does not override your own constitution, and a legacy clause that still mandates a seal should be followed or amended rather than ignored.

Deeds: the formalities that change

Deeds are a distinct category of document with their own formalities and longer limitation periods, and historically they came with heavy execution requirements. Under s 127(3), a company executes a document as a deed if the document is expressed to be executed as a deed and is executed in accordance with s 127(1) or (2). Three consequences follow from the current law:

No witness is required: a company executing a deed under s 127(1) does not need the signatures witnessed, and this overrides state and territory laws that would otherwise require a witness for deeds.
No delivery is required: s 127(3B) removes the old common law requirement that a deed be delivered to take effect.
Electronic form is fine: the deed can be signed in physical or electronic form, and the law no longer requires paper, parchment or vellum.

The contrast with individuals is worth noting. State and territory laws can still require an individual's signature on a deed to be witnessed. Those requirements sit outside s 127, so when an individual is signing in their personal capacity, check the governing law rather than assuming the company rules apply.

Electronic signing and split execution

Electronic execution became the default-friendly option through a two-stage reform. During the pandemic, a temporary determination introduced electronic signing in May 2020. Those emergency measures were later made permanent by the Corporations Amendment (Meetings and Documents) Act 2022, which applies to documents signed on or after 23 February 2022.

The current rule is in s 110A of the Corporations Act. A person may sign a document in physical or electronic form, provided the method used:

Identifies the person: the method must show who is signing.
Indicates their intention: the method must show the signer intends to be bound by the document.
Is reliable enough: the method must be as reliable as appropriate for the purpose in all the circumstances, or be proven in fact to have done the job.

In practice, reputable e-signature platforms that record identity, time stamps and completion certificates comfortably meet this test, which is why most commercial documents are now signed electronically. The same rules apply to deeds.

Split execution is also settled. The 2022 reforms confirmed that officers do not have to sign the same physical page, or use the same method, as one another. Each director or secretary can sign a separate copy of the document, and the signed copies together form the one executed document. This is standard practice for deals where signatories are in different locations, and it removes the old objection that a document had to be signed as a single artefact.

What the counterparty gets: the s 129 assumptions

The practical value of s 127 lies in what it does for the other side. Section 128 of the Corporations Act entitles a person dealing with a company to make the assumptions in s 129, and the company cannot later assert in proceedings that those assumptions were incorrect. The two that matter for execution are:

s 129(5): if a document appears to be signed in accordance with s 127(1), the counterparty may assume it was duly executed by the company.
s 129(6): if the company's common seal appears to have been fixed and witnessed in accordance with s 127(2), the counterparty may assume due execution.

The assumptions do heavy lifting. A person who signs stating next to their signature that they are a director, a company secretary, or the sole director of a company without a secretary is taken at their word. The assumptions apply even if an officer acted fraudulently or forged a signature, with one exception: a person who knew or suspected that an assumption was incorrect cannot rely on it.

This is why banks, investors and major suppliers ask for a s 127 execution block. It gives them a statutory safe harbour that means they do not have to chase board minutes or proof of authority before every deal. It is also why a defective execution block is so costly: it forfeits that safe harbour and forces the counterparty to do exactly the due diligence s 127 was designed to avoid.

Section 126: the other signing pathway

Section 127 is not the only way a company can sign. Section 126 of the Corporations Act allows a company's power to make, vary, ratify or discharge a contract, and to execute documents including deeds, to be exercised by an individual acting with the company's express or implied authority.

The distinction is worth keeping straight:

Section 127: the company executes through its officers in a standard form, bringing the s 129(5) and (6) assumptions with it.
Section 126: a person with actual authority, such as a manager, employee or agent, contracts on the company's behalf, engaging the s 129(3) assumption that someone held out by the company as an officer or agent was duly appointed and had the customary authority of that role.

Section 126 is the practical route for everyday contracting. A purchase order accepted by an authorised manager, or a supply agreement signed by a general manager, may never see a s 127 block. But if the counterparty wants the clean statutory assumptions, or the deal is high value, they will ask for s 127 execution. When a document is signed under s 126 by someone whose authority is not obvious, the counterparty may legitimately ask for evidence of that authority, such as a board minute or a delegations register.

Where execution commonly goes wrong

Most execution problems are avoidable, and they cluster in a few predictable places:

Out-of-date officer records: if someone signs as a director or secretary who is no longer appointed, or whose appointment ASIC has not been told about, the s 127(1) combination is not satisfied and the assumptions in s 129(5) may not protect the counterparty. Keep the ASIC register current.
Wrong titles in the signature block: listing someone as a company secretary who was never appointed, or using "director" for someone who resigned, turns a clean execution into a defective one.
Constitution requirements: s 127(4) makes clear that s 127 does not limit other ways of executing a document, and a constitution may impose its own rules, including a legacy requirement to use a common seal. Read the constitution before assuming the default combinations apply.
The wrong entity: a signature in the parent company's name does not execute a subsidiary's contract. If the company signs as trustee, or as part of a group, the signature block must identify the correct entity and capacity.
Deeds dressed up as agreements: if a document is intended to be a deed, it must say so and be expressed to be executed as a deed. Executing it as an ordinary agreement can defeat the parties' intention.
Wet-ink insistence: some banks, registries and overseas counterparties still require wet-ink signatures, notarisation or apostille for particular transactions, especially in property and finance. Confirm any such requirements early, because no amount of electronic signing under s 127 will satisfy a counterparty that insists on its own formalities.

When a lawyer earns their keep

Execution looks simple until it is not, and the cost of getting it wrong is usually far higher than the cost of checking it. A lawyer can help at several points:

Reviewing standard execution blocks: making sure they match the current law, the company's officer structure and its constitution.
Checking the ASIC record and constitution: before a significant signing, particularly for sole director companies, trustee companies and groups with multiple entities.
Advising on deed formalities and cross-border requirements: where state laws, foreign notarisation rules or registry requirements can override the flexible s 127 framework.
Fixing documents already signed defectively: including re-execution, deeds of confirmation, or negotiating with the counterparty where the s 129 assumptions are no longer available.

A short conversation before signing is cheap. Re-executing a finance document after a lender has flagged a defective signature, or defending a dispute over whether the company is bound, is not.

Check the execution block before the deal closes

Across all of this, one pattern stands out. The value of s 127 is the statutory safe harbour it creates for the other side, and that safe harbour only attaches if the signature block is right the first time. A document signed by the wrong person, with the wrong title, or in the wrong entity's name does not simply become a problem later: the s 129 assumptions stop protecting the counterparty, which is exactly when deals stall and disputes start.

The fix is cheap and available now. Before your next significant signing, check the ASIC record against the people who will sign, read the constitution for any bespoke execution rules, and confirm the execution block names the right entity and the right combination of officers. If there is any doubt about a document already signed, or about the requirements of a particular transaction, a lawyer can review the position quickly, and it may not be as expensive as you expect. Artificer Legal offers a free consultation, and a short conversation at this stage can save a re-execution, a stalled settlement, or a dispute about whether your company is bound at all.