Are Heads of Agreement Binding? What Businesses Need to Know

When you’re negotiating a deal, there’s often a moment where everyone wants to “lock in the key points” before spending time (and money) on the final contract.

That’s where a Heads of Agreement (often called a “HOA”) comes in.

For many Australian small businesses, a Heads of Agreement can be a helpful way to align expectations and keep negotiations moving. But it can also create risk if you assume it’s “just a draft” and you accidentally make parts of it legally binding.

Below, we’ll walk you through what a Heads of Agreement is, when businesses use them, what clauses tend to be included, and the big question: are heads of agreement binding?

What Is A Heads Of Agreement?

A Heads of Agreement is a written document that sets out the key terms that parties have agreed in principle during negotiations.

In plain English: it’s a summary of the main commercial points of a deal, usually prepared before a formal contract is finalised.

You’ll often see a Heads of Agreement used when the deal is important, complex, or time-sensitive, for example:

• buying or selling a business (or business assets)
• bringing on an investor or funding partner
• entering a joint venture or strategic partnership
• signing a major supply or distribution arrangement
• negotiating a lease, sublease, or assignment arrangement

A Heads of Agreement can be called different things depending on the industry and the nature of the transaction. You might also see:

• Term Sheet
• Memorandum of Understanding (MOU)
• Letter of Intent (LOI)
• Heads of Terms

While the names differ, the commercial purpose is often similar: capturing the deal’s main points before the long-form documentation is prepared.

Why Businesses Use A Heads Of Agreement

From a small business perspective, a Heads of Agreement can be a practical tool when you:

• Want clarity early: it reduces misunderstandings by confirming what you think you’ve agreed.
• Need to progress quickly: it can keep momentum while lawyers draft and negotiate the final contract.
• Want to justify spending costs: once key terms are agreed, it may feel safer to spend on due diligence, accounting, finance approvals, or legal drafting.
• Need to brief your team: it gives stakeholders a clear snapshot of what’s being negotiated.

But the same “quick summary” format that makes a Heads of Agreement attractive is also what can make it risky. If it’s vague, poorly drafted, or unclear about legal intention, it can create disputes later.

Are Heads Of Agreement Binding In Australia?

This is the question we hear most: are heads of agreement binding?

The answer is: it depends on how it’s drafted and what the parties intended.

A Heads of Agreement can be:

• not legally binding at all (purely a roadmap for negotiations),
• partly binding (some clauses are binding, others are not), or
• fully binding (it operates like a contract).

In practice, many Heads of Agreement are intended to be partly binding-for example, the commercial terms are “subject to contract”, but confidentiality and exclusivity are binding.

This is why it’s so important not to treat a Heads of Agreement as “just a handshake in writing”. If you sign something that looks like a contract and behaves like a contract, you may find yourself held to it.

What Makes A Heads Of Agreement Binding?

Courts generally look at whether the document contains the elements of a legally enforceable agreement and whether the parties intended to create legal relations.

Common factors that can push a Heads of Agreement towards being binding include:

• Clear, complete terms: the document is specific (price, scope, timing, parties, key obligations).
• Language that suggests commitment: words like “must”, “will”, “shall”, “agree” (instead of “intend” or “propose”).
• Conduct of the parties: you start performing the agreement as if it’s final (paying deposits, delivering goods, providing services).
• No meaningful outstanding issues: if nothing important is left for the “formal contract”, the HOA may be treated as the deal.
• Signing and reliance: one party relies on it and the other encourages that reliance.

On the other hand, factors that point away from being binding include strong “subject to contract” language and clear statements about what is and is not intended to be enforceable.

“Subject To Contract” Isn’t A Magic Phrase

Many businesses assume that writing “subject to contract” automatically prevents legal enforceability.

It’s a helpful signpost, but it isn’t a guarantee.

If the document also contains binding-style language or the parties act as if the deal is final, disputes can still arise. The safest approach is to make the intention explicit and consistent throughout the document (and in how you behave after signing).

What Should A Heads Of Agreement Include?

There’s no single “standard” Heads of Agreement that fits every business deal. It should be tailored to the transaction you’re negotiating.

That said, for most commercial arrangements, a Heads of Agreement often covers:

• The parties: correct legal names and entities (company, individual, trustee, etc.).
• Deal structure: what the transaction actually is (asset sale, share sale, service arrangement, joint venture, licence).
• Key commercial terms: price, payment structure, deposit, adjustments, milestones.
• Scope: what is included and what is excluded.
• Timing: target dates for signing the formal contract and completion.
• Conditions: finance approval, due diligence, board approvals, third-party consents.
• Allocation of responsibilities: who does what next (drafting, providing information, obtaining approvals).
• Confidentiality: how sensitive information is handled.
• Exclusivity (if any): whether you can negotiate with others and for how long.
• Costs: who pays legal and adviser costs.
• Dispute resolution (sometimes): how disagreements will be managed during negotiations.

If your transaction involves a new corporate structure, you might also need to think about how governance documents will fit into the final deal. For example, it’s common for investment and co-founder deals to eventually require a Shareholders Agreement and sometimes a Company Constitution, depending on how ownership and decision-making will work.

Be Careful With “High-Level” Terms That Are Actually Important

Small business owners sometimes keep a Heads of Agreement too vague to “stay flexible”. That can backfire.

For example, terms like these can become dispute hotspots if they’re not defined:

• What does “handover support” mean (how many hours, for how long, and at what cost)?
• What exactly is included in “intellectual property” (brand name, customer list, website, domain, social accounts)?
• What is the quality standard or service level expected?
• What happens if due diligence reveals issues?
• When is a payment refundable vs non-refundable?

If you’re not ready to define a term yet, it may be better to state that it is “to be agreed” and confirm it will be dealt with in the formal contract (and that no binding commitment exists on that point).

Common Binding Clauses In A Heads Of Agreement

Even where the overall Heads of Agreement is intended to be non-binding, it’s common for certain clauses to be drafted as binding.

This can be commercially sensible. You might not be ready to commit to the whole deal, but you still want protection while negotiations are underway.

Confidentiality

During negotiations, you may share sensitive information like supplier pricing, customer lists, marketing strategy, or financial data.

A confidentiality clause can require both parties to keep that information confidential and only use it for evaluating the deal.

In some cases, it can make sense to use a standalone confidentiality document instead (particularly if you’re sharing information before you’ve agreed on commercial terms). This is often handled with a Non-Disclosure Agreement.

Exclusivity (Or “No Shop”)

An exclusivity clause usually means one party agrees not to negotiate with other potential buyers/suppliers/investors for a set period.

From a small business perspective, exclusivity can be valuable if you’re about to spend money on due diligence, valuations, or legal drafting and you don’t want the other party to walk away and do a deal with someone else.

But exclusivity can also restrict your options. If you agree too early (or for too long), you may lose leverage or miss other opportunities.

Good Faith Negotiation

Some Heads of Agreement include a clause requiring the parties to negotiate the formal contract in good faith.

In Australia, whether a “good faith” obligation is enforceable (and what it requires in practice) is highly fact-specific and can depend on how the clause is drafted and the surrounding circumstances. If you want a flexible negotiation process, you’ll want to think carefully about whether a “good faith” clause helps or creates uncertainty.

Costs

It’s common to include terms about who pays costs (legal fees, accounting fees, due diligence expenses).

This is often drafted as binding because it’s relevant immediately-regardless of whether the final deal proceeds.

Governing Law And Jurisdiction

If parties are in different states (or one is overseas), it’s common to specify that Australian law applies and which state’s courts have jurisdiction.

Heads Of Agreement vs Contract: What’s The Difference?

A Heads of Agreement is typically a stepping stone to a formal contract. It’s not automatically “less important” than a contract-its legal effect depends on drafting and intention-but it usually has a different role.

Heads Of Agreement

• Usually shorter and higher-level
• Captures commercial intent and key terms
• Often signed before due diligence or detailed drafting is complete
• May be non-binding, partly binding, or binding

Formal Contract

• Usually longer and more detailed
• Includes legal protections, definitions, warranties, indemnities, limitation of liability, termination rights and dispute processes
• Designed to be enforceable and complete
• Intended to govern the relationship/transaction fully

As a business owner, it helps to think of it this way: a Heads of Agreement sets the direction, but the formal contract does the heavy lifting on risk allocation.

For example, if your deal involves ongoing services, the detailed protections usually sit inside a proper Service Agreement (rather than relying on a short summary document).

Practical Tips Before You Sign A Heads Of Agreement

A Heads of Agreement often gets signed at a high-energy moment-everyone’s excited, the negotiation feels “done”, and you just want to move forward.

Taking a little time here can save you significant cost and disruption later.

1. Be Clear On What You Want To Be Binding (And What You Don’t)

If your intention is “not legally binding except for confidentiality and exclusivity”, then say so clearly and ensure the wording matches throughout the document.

Problems usually arise when different parts of the document point in different directions-one clause says it’s non-binding, but the rest reads like a final agreement.

2. Don’t Rely On Templates For High-Stakes Deals

Templates can be tempting, especially if you’re cost-conscious. But a Heads of Agreement is often used in high-value transactions where the risks are significant.

If it’s unclear or inconsistent, you might end up with:

• a dispute about whether there’s a deal at all, or
• an obligation you didn’t intend to commit to yet.

Getting the drafting right is usually cheaper than trying to fix misunderstandings later.

3. Check The Parties And Signing Details Carefully

It sounds basic, but it matters. If the wrong entity is listed (for example, an individual instead of their company, or the wrong trustee), it can create real enforceability issues.

Also check:

• who is authorised to sign
• whether execution needs to follow corporate signing rules
• whether witnesses are required (depending on document type and execution method)

4. If You’re Collecting Information, Think About Privacy Early

Not all Heads of Agreement situations involve customer data, but many deals involve sharing databases, mailing lists, or user information.

If personal information is being transferred or accessed, you may need to think about privacy compliance and the public-facing documents that sit behind it, like a Privacy Policy.

5. Plan The “Next Documents” So You Don’t Get Stuck

A Heads of Agreement often works best when it also sets out a clear pathway to the formal contract.

That might mean agreeing:

• who drafts the first version
• the timetable for comments and revisions
• what must happen before signing (due diligence, approvals, third-party consents)
• the target completion date

If your deal involves hiring, secondments, or transferring staff, you may also need a plan for employment documentation (including an Employment Contract) so the operational transition is smooth.

Key Takeaways

• A Heads of Agreement is a document that records key terms agreed in principle, usually before a final contract is drafted.
• If you’re looking up “what is a heads of agreement”, the practical point is that it’s often used to keep negotiations moving while major terms are being settled.
• Heads of agreement binding status depends on drafting and intention-some are non-binding, some are partly binding, and some can be fully binding.
• Even when the main deal terms are “subject to contract”, clauses like confidentiality, exclusivity, costs and governing law are often drafted to be binding.
• A Heads of Agreement should be clear and consistent about what is agreed now, what is still to be negotiated, and what happens next.
• For significant deals, getting legal input early can reduce the risk of accidental obligations, unclear terms, and costly disputes later.

If you’d like a consultation on preparing or reviewing a Heads of Agreement for your business, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.