“Sign And Seal” In Australia: How To Execute Business Documents

“Signed, sealed and delivered” sounds old‑fashioned, but it still raises practical questions for small businesses today.

Do you need a company seal anymore? When does a deed need to be “sealed”? Can you sign electronically? And what actually counts as valid execution under Australian law?

In this guide, we’ll unpack what “sign and seal” means now, when it matters, and how to execute your business documents properly - whether you’re signing a simple contract, a lease, or a formal deed. We’ll keep it practical so you can confidently put deals in place and move forward.

What Does “Sign And Seal” Mean For Businesses Today?

The phrase “sign and seal” comes from a time when individuals and companies used wax seals to authenticate documents. In modern Australia, a physical seal is rarely required, and the law focuses on valid execution - in other words, whether the right people signed in the right way.

For most day‑to‑day contracts, you don’t need any seal at all. A valid agreement usually requires offer, acceptance, consideration (something of value exchanged), intention to create legal relations, and certainty of terms. If those elements are present and the document is properly signed by authorised parties, you’re generally covered.

Where “seal” still pops up is with deeds. Historically, deeds were “signed, sealed and delivered.” Today, deeds are still special instruments with higher formality than standard contracts and can be used even when there’s no consideration. They can also set longer limitation periods and are often used for important one‑off commitments like assignments, releases, or guarantees.

If you’re unsure whether your document needs any special steps (like witnessing), it’s worth revisiting the legal requirements for signing documents to avoid an otherwise preventable dispute down the track.

Do You Still Need A Common Seal For Your Company?

Short answer: no - not usually.

A “common seal” is a metal stamp that imprints the company name onto a document. Australian companies used to rely on it to execute documents, including deeds. Today, using a common seal is optional.

Most companies execute documents without a seal by having the appropriate officeholders sign. This is simpler, faster, and just as legally effective when done correctly. You’ll still see some legacy templates with a “sealed with the common seal of…” panel, but you don’t need to use it unless your company constitution mandates it (which is uncommon now).

If you do choose to keep and use a common seal, make sure your board has a clear internal policy for who can affix and witness it, and store it securely. The goal is the same either way - to ensure counterparties have confidence that the document is binding on your company.

Deeds Versus Agreements: When Does “Signed, Sealed And Delivered” Still Matter?

Deeds are different from ordinary contracts. They’re typically used when you want a high‑certainty, one‑way promise (no consideration needed), or an instrument with extra weight - think settlement deeds, guarantees, novations, variations, assignments, and confidentiality deeds.

Key points to understand:

• Formality: A deed must make clear on its face that it’s a deed (for example, titled “Deed of Assignment” or “Deed of Release”) and include words of intent to be bound as a deed.
• Execution: Depending on the party and the jurisdiction, deeds may require specific signing blocks, witnesses, and a concept of “delivery” (the act showing intention to be bound).
• No consideration: Deeds can be enforceable without consideration, which is useful where value isn’t being exchanged both ways.
• Limitation periods: Deeds generally have longer time limits for enforcement compared to ordinary contracts, which can be a strategic benefit.

If you’re weighing up whether to use a deed or a standard agreement, start with the purpose and risk profile of the document. For a deeper look at the features, benefits and formalities, this overview of What Is A Deed is a helpful reference.

Common Deed Types You’ll See In Business

• Deed of Assignment: Transfers rights or interests - for example, assigning IP or contract rights. If you’re transferring rights without a traditional two‑way “price,” a deed can be the right tool. You’ll often see this as a Deed of Assignment rather than a simple assignment clause in an agreement.
• Deed of Release and Settlement: Records a binding settlement of a dispute and releases claims.
• Deed Poll: A one‑sided deed by a single party (commonly used for promises to a defined class of beneficiaries). If that structure suits your needs, read more about deed polls.
• Deed of Novation or Deed of Variation: Used to replace parties or amend terms when added certainty and formalities are desired.

Because deeds carry extra formality, it’s important to use the correct execution block and witnessing requirements for each party type. That’s where the next section comes in.

How To Validly Execute Documents In Australia (With Or Without A Seal)

There are two main ways a company can execute documents in Australia: under section 127 of the Corporations Act 2001 (Cth), or via an authorised representative under section 126. Both paths can work for contracts and deeds - but the details matter.

Company Execution Under Section 127

Section 127 sets out safe‑harbour methods for company execution. A company can execute without a seal if the document is signed by:

• Two directors; or
• A director and a company secretary; or
• The sole director who is also the sole company secretary (for single‑director companies).

If you follow this method, counterparties can rely on certain assumptions that your document is validly executed, which smooths transactions and reduces back‑and‑forth. For a practical run‑through of the options and how to structure your signing blocks, see this guide to section 127.

Authority To Sign Under Section 126

Section 126 allows a company to enter into contracts via an individual authorised to act on its behalf (for example, a director, officer or another agent) - even if you haven’t used a section 127 signing block. This is helpful for day‑to‑day agreements and when you want managers to sign within their delegated authority.

However, counterparties have fewer “assumptions” to rely on under section 126, so it’s good practice to keep your delegations clear and documented (for example, through board minutes or position descriptions). If you’re relying on agency rather than formal officer execution, make sure your process aligns with the principles in section 126.

Individuals, Partnerships And Trusts

Not every document is signed by a company. If you’re dealing as an individual, you’ll sign in your personal capacity - and certain documents (like deeds) may require a witness. Partnerships typically require partners to sign per the partnership agreement. If you’re signing as trustee of a trust, sign in that capacity and ensure you’re authorised by the trust deed.

In all cases, make sure the correct legal entity is named in the document and in the signature block. It sounds simple, but it’s a common source of errors.

Witnessing And Delivery

Some documents - especially deeds executed by individuals - require signing in the presence of an eligible witness. The rules are technical and vary by state, so it’s worth checking the witness rules that apply to your situation.

“Delivery” is the final step that shows an intention to be bound by a deed. In practice, this is often satisfied by wording in the deed and the act of signing and circulating the executed copy, but your template should address it expressly to avoid doubt.

Can You Use E‑Signatures, Counterparts And Remote Witnessing?

Electronic execution is now broadly accepted in Australia for many contracts and (in most jurisdictions) deeds, subject to satisfying identity, reliability and attestation requirements. During and after the pandemic, federal and state reforms modernised execution rules, but there are still nuances by document type and location.

Electronic Signatures

For most commercial agreements, e‑signatures are fine if the method identifies the signer and indicates their intention to be bound, and the counterparties consent to electronic signing. Deeds can also be executed electronically in many cases, but pay attention to any witnessing requirements and platform features that support them. This overview of electronic signatures explains when wet ink is still preferred and how to choose the right approach.

Signing In Counterparts

Counterparts allow each party to sign separate copies of the same document, which together form one agreement. This is helpful when parties are in different locations or using different signing methods. Include a counterparts clause to make this clear - and check whether your deed template supports it. Learn how counterparts clauses work in practice in this guide to counterparts.

Remote Witnessing

Some states permit remote witnessing for certain documents under specified conditions (for example, via audio‑visual link with particular steps). If a deed needs witnessing and you plan to do it remotely, confirm the rules for your jurisdiction and make sure your platform and process meet them. If in doubt, arrange an in‑person witness to be safe.

Initials, Corrections And Version Control

If you make minor changes to a document just before signing (for example, correcting a date), it’s good practice to initial the change and maintain a clean, final PDF for circulation. For a quick primer on when and how to mark changes, this short guide to initialling documents is a useful checklist.

Practical Checklist: Get “Sign And Seal” Right The First Time

Here’s a simple, repeatable process your team can use to avoid execution issues that delay deals or lead to enforceability problems.

1) Confirm The Right Document Type

• Ask: do we need a standard agreement, or is a deed more appropriate (for a one‑way promise, no consideration, or added certainty)?
• Make sure the title and opening words match the instrument (e.g., “Deed of Release”).
• Include a counterparts clause and delivery wording if you’re using a deed and teams are signing in different places.

2) Name The Correct Legal Entities

• Use the full company name and ACN (or ABN for non‑companies) and ensure the right party is named (for example, the trustee company “as trustee for” the relevant trust).
• Align the signature blocks with the parties named in the front of the document.

3) Choose A Valid Execution Method

• For companies, prefer the safe‑harbour methods under section 127 where practical.
• Where managers or agents are signing, confirm their delegated authority under section 126 and keep records.
• For individuals, partnerships or trustees, check witness and capacity requirements in your state.

4) Decide On Wet Ink Or E‑Signature

• Confirm whether the document can be executed electronically and whether any witnessing is required.
• If e‑signing, use a reputable platform that captures identity and intention, and circulate the fully signed PDF to all parties. When in doubt (especially for deeds), consider wet ink signing. For context, see the comparison of wet ink and electronic signatures.

5) Handle Witnessing Properly

• Choose an eligible adult witness who is not a party to the document.
• Ensure they see the signing occur (in person, or remotely if your jurisdiction permits and the rules are followed).
• Have the witness complete their name and address in the witness block.
• If you’re unsure about eligibility or process, revisit the basic witness rules.

6) Version Control And Delivery

• Lock down a final version (no tracked changes) before signing.
• If edits are needed, initial them or reissue a clean final for signing.
• Circulate the fully executed copy to all parties and save it in your contract repository.

7) Keep An Audit Trail

• File approvals, board minutes, delegations and any authority to sign for section 126 execution.
• Retain platform audit logs for electronic signatures.
• Record the date of “delivery” for deeds and note any jurisdiction‑specific steps taken.

8) Train Your Team

• Provide a short playbook with execution options for common scenarios (company with two directors, sole director/secretary, agent under delegation, individuals, trustees).
• Keep template signing blocks for each scenario ready to drop into your documents.

Building these steps into your process will save time, reduce counterparty queries, and strengthen enforceability if a dispute arises. If you want a deeper dive on fundamentals (for example, how courts look at intention, identity and reliability), this overview of what makes a valid signature is a helpful companion read.

Key Takeaways

• “Sign and seal” is largely historical for everyday contracts - modern Australian law focuses on valid execution by the right people in the right way.
• A common seal is optional; most companies execute documents without a seal using the safe‑harbour methods in section 127.
• Use a deed when you need extra formality, no consideration, or a longer limitation period - but observe deed formalities and the correct signing blocks.
• Electronic execution, counterparts and (in some cases) remote witnessing are acceptable, provided you satisfy identity, intention and any witnessing rules.
• Create a simple checklist for your team covering document type, party names, execution method, witnessing, delivery and record‑keeping to avoid costly mistakes.
• When in doubt, confirm the legal requirements for signing documents and use templates that reflect the latest execution options.

If you’d like a consultation on getting your contracts and deeds executed correctly for your business, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no‑obligations chat.