Notice To Complete In Australia: What It Is And How It Works

If you’re working to a tight transaction timeline-like completing a business sale, finalising an asset purchase, or closing a major supply deal-you’ll sometimes need a formal way to push things over the line.

That’s where a notice to complete comes in.

Used correctly, a notice to complete can create a firm, enforceable deadline for the other party to finish what the contract requires. Used poorly, it can backfire-risking your rights or even a dispute.

In this guide, we’ll explain what a notice to complete is, when to use it, practical steps to issue one properly, and common mistakes to avoid-all from the perspective of Australian small businesses.

What Is A Notice To Complete (And When Is It Used)?

A notice to complete is a formal written notice that requires the other party to complete the contract by a specified date and time.

It’s most commonly seen in business and property transactions where there’s a defined “completion” (for example, handover of assets, payment of the balance price, or transfer of shares). In a typical Business Sale Agreement, if completion stalls, a notice to complete can set a final deadline and make “time of the essence” so delays have consequences.

But it’s not limited to sales. You’ll also see notices to complete in long-form supply, construction or services contracts where milestones have to be met.

In practical terms, a notice to complete does three things:

• Sets a clear, final completion date and time.
• Usually makes time “of the essence” from that point (meaning the deadline is strict).
• Preserves your rights to terminate or claim damages if completion still doesn’t happen.

Whether you can issue one will depend on your contract and general contract law principles. Many contracts include a specific “notice to complete” mechanism; if yours doesn’t, you may still be able to rely on a general notice of default and a reasonable deadline to complete. The key is to follow the contract’s procedures to the letter.

When Should You Issue A Notice To Complete?

Before you jump to formal notices, it’s often worth trying a commercial discussion. Delays may be solvable with a short extension or a revised handover plan.

That said, there are times when a notice to complete is the right move. Consider issuing one if:

• The contract has passed its scheduled completion date and the other party isn’t ready.
• You’ve already attempted to reschedule or resolve the delay informally without success.
• The contract expressly allows a notice to complete in this situation.
• You need a defined, enforceable deadline to preserve your rights or avoid further costs.

In many deals, the party that’s “ready, willing and able” to complete will issue the notice to complete to the other side that isn’t. If both parties are delayed for different reasons, a notice may not be effective until you put yourself in a position to complete (more on readiness below).

If your relationship is ongoing (think: a long-term supply arrangement), consider whether a cooperation plan or a short variation might be better than escalating to a notice. If you do need to change dates formally, a short-form Deed of Variation is often the cleanest way to do it.

How Do You Prepare And Serve A Valid Notice To Complete?

A notice to complete only works if it’s done properly. Here’s what to check before you send one.

1) Confirm Your Contractual Basis

Start with the contract. Is there a specific clause allowing a notice to complete? Does it prescribe the form, timeframe, or wording?

Also read the “notices” clause carefully. It will tell you how to serve notices (email, post, hand delivery), where to send them, and when they are deemed received. If you don’t follow it exactly, your notice can be challenged.

If your contract doesn’t mention notices to complete, you may still be able to give a reasonable deadline to perform, but the risks are higher. In those cases, consider a tailored Contract Review first to map out the best strategy.

2) Be “Ready, Willing And Able” To Complete

A fundamental rule: the party issuing a notice to complete must be ready, willing and able to complete on the deadline they set.

That means you can’t insist on completion by next Wednesday if you won’t have your own deliverables (like documents, approvals, finance or stock) by then. If you aren’t ready yourself, the notice may be invalid and your ability to terminate can be compromised.

As a practical step, line up everything you need to complete: signatories, funds, authorisations, logistics, and any third-party consents. Many teams use a transaction checklist to track these items-Sprintlaw’s Completion Checklist approach can help you stay organised.

3) Set A Reasonable Timeframe

Unless the contract sets a specific period (for example, “14 days after a notice to complete”), choose a deadline that’s reasonable in the circumstances. In business sale and property contexts, 10-14 days is commonly used, but what’s reasonable will depend on the deal and what still needs to be done.

Reasonableness matters because a very short, unrealistic deadline can be unenforceable. On the other hand, a very long period might defeat the purpose of the notice and increase your costs.

4) Use Clear, Simple Wording

Your notice should be clear and unambiguous. It typically includes:

• Reference to the contract (parties, date and clause reference if applicable).
• A statement that you are ready, willing and able to complete.
• The final date, time and place/method for completion.
• A statement that time is of the essence from receipt of the notice (if not already in the contract).
• The consequences of failing to complete by the deadline (e.g. termination and damages under the contract).

Avoid argumentative language. The notice is a procedural step, not a platform to ventilate grievances. If a dispute is brewing, keep the letter to the essentials and preserve your rights.

5) Serve The Notice Properly

Follow the contract’s notices clause exactly. If it says to send notices to the CFO by email and to the registered office by express post, do both. If it requires hand delivery during business hours, arrange it and keep evidence (like a courier receipt or signed acknowledgement).

Consider time zones and deemed receipt rules. If you email at 6pm on a Friday and the contract says emails received after 5pm are deemed received the next business day, your timeframe will start later than you think.

What Happens If The Other Party Doesn’t Comply?

If the deadline expires and the other party still hasn’t completed, your next steps will depend on your contract and what you’re seeking.

• Termination: Many contracts allow you to terminate if completion doesn’t happen by the notice deadline. Where appropriate, this is commonly documented via a Deed of Termination to settle logistics like hand-back of documents, refunds or release of security.
• Damages: You may claim losses caused by the delay or failure to complete. In some contracts, there are liquidated damages or interest provisions that kick in automatically.
• Security: If you hold a deposit or bank guarantee, the contract may allow you to forfeit or call on it. Check the conditions carefully before acting.
• Specific Performance: In some cases (especially unique assets or shares), you might seek a court order compelling completion. This is a litigation strategy and involves cost and risk.
• Settlement: If both parties still want to proceed but need revised terms, a commercial settlement recorded in a Deed of Settlement can reset the path forward.

If you’re facing a stalemate, it’s also worth revisiting the underlying obligations. Our guide to breach of contract explains the remedies that may be available in parallel with (or instead of) a notice to complete approach.

Common Pitfalls To Avoid (And How To Manage Risk)

A notice to complete is powerful-but only if you avoid these frequent missteps.

• Issuing When You Aren’t Ready: If you can’t complete yourself, the notice may be ineffective. Do a readiness check before you send it.
• Unreasonable Timeframes: A 24-48 hour deadline on a complex transaction is likely to be challenged. Use a period that reflects the actual steps left to complete.
• Incorrect Service: Notices sent to the wrong address or via the wrong method can be invalid. Follow the notices clause precisely.
• Waiving Your Rights: Accepting late performance or continuing with the deal after the deadline can waive your right to terminate. If you want to accommodate a delay, document it clearly-for example, via a short Deed of Variation.
• Using The Wrong Tool: A notice to complete is different from a notice to remedy breach. If the other party has breached an obligation that doesn’t relate to completion, a breach notice might be more appropriate.
• Ambiguous Wording: Vague dates (“in two weeks”) or unclear instructions (“complete the outstanding items”) create room for dispute. Be specific.

Finally, remember that amending commercial agreements mid-transaction needs care. If dates or deliverables genuinely have to change, updating your agreement the right way protects both sides. Our overview on how to legally vary a contract outlines safe options to document changes without undermining your position.

Alternatives To A Notice To Complete: Commercial Options

Not all delays call for escalation. Depending on the relationship and the reasons for the holdup, you might prefer a commercial solution that preserves momentum:

• Short Extension: If everything is aligned and just needs a few extra days, a written extension (signed by both parties) might be enough.
• Staged Completion: Break completion into phases-deliver key items now, with a holdback or escrow for the rest.
• Price Adjustment Or Holdback: Agree a small adjustment or retention to compensate for specific outstanding items.
• Formal Variation: Where timelines or deliverables need a proper reset, use a Deed of Variation to amend the completion date or conditions.
• Settlement Package: If the relationship has soured but you want a clean exit, a negotiated solution documented in a Deed of Settlement can close out obligations safely.

If you’re still early in negotiations, consider tightening your pre-contract documents so completion risk is reduced from day one. Clear heads of terms, realistic timelines and practical completion conditions in your Business Sale Agreement all make a big difference when pressure is on.

Step-By-Step: Using A Notice To Complete In A Business Sale

To make this real, here’s a practical workflow you can adapt for your own deal (asset sale, share sale or similar):

Step 1: Review The Contract And Map The Gap

Open the contract. Identify the completion obligations and the clause that governs notices. List what’s outstanding on both sides (funds clearance, PPSR releases, landlord consent, stocktake, employee transfer paperwork, software licence assignments, etc.).

Step 2: Confirm Your Readiness

Line up your signatories, approvals and documents. If you need board or investor sign-off, or bank signatories, schedule these now. If your company execution will rely on s 127, make sure your execution plan aligns with your constitution and any execution rules-Sprintlaw’s content on execution practices like signing in counterpart can help inform internal planning.

Step 3: Choose A Reasonable Deadline

Check if the contract prescribes a period (e.g. 10 or 14 days). If not, pick a timeframe that lets the other side complete the remaining items-while still protecting you from ongoing costs and uncertainty.

Step 4: Draft A Clear Notice

Reference the contract, state your readiness, set a specific date and time, and note the consequences if completion does not occur. Keep it professional and focused.

Step 5: Serve The Notice Correctly

Follow the notices clause. Serve by all required methods and keep proof (email sent folder, postal lodgement receipts, courier PODs). Diarise the deemed receipt date/time and your deadline.

Step 6: Prepare For Completion Or Next Steps

In parallel, get your completion pack in order-the Completion Checklist approach ensures nothing is missed on the day.

If the deadline is missed, be ready to execute a Deed of Termination (if you’re walking away), or a Deed of Variation (if you’re extending), or proceed with a claim consistent with your contract and the law on breach of contract.

FAQs About Notices To Complete (For Small Businesses)

Is “Time Of The Essence” Required?

Not always at the start of a contract. A properly issued notice to complete can make time of the essence from the date of the notice. If your contract already says time is of the essence for completion, a notice simply sets the final deadline and confirms the consequences.

How Long Should I Give In The Notice?

If your contract sets a period, use that. If not, choose a reasonable period for the remaining steps-commonly 10-14 days in a transaction context. What’s “reasonable” depends on the outstanding items and the parties’ ability to complete.

What If We Agree To Extend Instead?

Document the extension properly so you don’t accidentally waive rights or create uncertainty. A short, signed variation is best practice-use a simple Deed of Variation so the new date is clear and enforceable.

Can A Notice To Complete Be Defective?

Yes. Issues like an invalid service method, an unreasonable timeframe, or you not being ready to complete can all undermine the notice. If in doubt, get a quick Contract Review before sending it.

Is It The Same As A Breach Notice?

No. A notice to complete focuses on completion by a set deadline. A breach notice asks the other party to fix a breach (which might or might not relate to completion). They’re different tools-use the one that fits the issue you’re trying to solve.

Key Takeaways

• A notice to complete sets a final, enforceable deadline for contract completion and often makes time of the essence from that point.
• Only issue a notice if you are “ready, willing and able” to complete yourself and you can follow the contract’s notice requirements precisely.
• Choose a reasonable timeframe-unrealistic deadlines or incorrect service can invalidate your notice and weaken your position.
• If completion still doesn’t occur, you may be entitled to terminate, claim damages, call on security, or seek specific performance (depending on your contract and the circumstances).
• Consider commercial alternatives like a short extension or a formal variation when relationships are ongoing and both sides want to complete.
• For high‑stakes deals, a clear Business Sale Agreement, a practical Completion Checklist, and targeted documents like a Deed of Termination or Deed of Variation help you manage risk.

If you’d like a consultation on preparing or responding to a notice to complete for your business, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no‑obligations chat.