Option Agreements: What Australian Businesses Should Know

Big deals often hinge on timing. You might be exploring a property purchase, planning an investment round, or negotiating the sale of a business, but you’re not quite ready to commit. An option agreement can hold that opportunity in place while you complete due diligence, organise finance, or secure approvals-without forcing either party to jump too soon.

In this guide, we’ll unpack how option agreements work in Australia, when to use them, the key legal issues to watch, and what to include so your contract is clear, enforceable and commercially sound.

What Is An Option Agreement?

An option agreement is a contract that gives one party the right-but not the obligation-to buy or sell an asset on pre-agreed terms within a set period. The asset can be anything from real property and company shares to intellectual property or units in a trust.

Think of it as a “hold-and-decide” tool. You lock in price and key terms now, while keeping the choice to proceed (or not) until the option period ends.

Businesses use option agreements to buy time, manage risk and provide certainty about “what happens if we go ahead,” without committing to a full sale contract up front. When you need a formally drafted document, many businesses use a dedicated Option Deed to set these rights out cleanly.

When Should You Use An Option Agreement?

Option agreements are helpful anywhere you need breathing room to make a decision-but still want to reserve your position. Common scenarios include:

• Business or share sales: A buyer wants time to complete due diligence, secure regulatory approvals or arrange finance, while the seller wants certainty on price and terms if the buyer proceeds.
• Property transactions: You’re keen on a site but need time to investigate planning, zoning or funding. An option can reserve purchase rights while you do the legwork.
• Investment rounds: An investor wants the right to acquire shares on agreed terms within a specific window after diligence or milestone events.
• IP commercialisation: A prospective licensee or acquirer wants time to test commercial viability, while the IP owner wants to maintain control and confidentiality in the interim.
• Team incentives: You may grant rights that align with a broader plan such as an Employee Share Option Plan, so key people can acquire equity if certain conditions are met.

The right structure helps both sides manage uncertainty. You secure the opportunity; your counterparty gets clarity about how a deal will work if they choose to proceed.

How Do Option Agreements Work?

There are two common types of options:

• Call option: The holder has the right to buy the asset from the grantor at the exercise price within the option period.
• Put option: The holder has the right to sell the asset to the other party at the exercise price within the option period.

In both cases, the holder chooses whether to exercise. If the holder exercises, the parties complete the underlying transaction on the agreed terms.

Key Elements You’ll Usually See

• Option period: The timeframe during which the holder can exercise the option (for example, any time up to 6 months from signing).
• Option fee: Often a non-refundable fee paid for the right to keep the opportunity open. Commercially, it compensates the grantor for holding the asset and limiting other negotiations.
• Exercise price: The price you’ll pay or receive if the option is exercised (fixed, formula-based, or tied to milestones).
• Exercise mechanics: How to give valid notice (form, delivery method, timing), what documents must be provided, and when completion will occur.
• Conditions precedent: Any steps that must be satisfied before completion (regulatory approvals, finance, board approvals, satisfactory due diligence, landlord consent, and so on).
• Exclusivity (if agreed): Whether the grantor is restricted from negotiating with others during the option period, and on what terms. Exclusivity is not automatic-it needs to be clearly agreed.
• Confidentiality: Expectations around non-disclosure of commercial terms and information exchanged before and after signing. Many parties use a standalone Non-Disclosure Agreement as part of the process.

Well-drafted exercise mechanics and timelines are critical. If a notice is late or defective, the option can lapse-and that can mean losing the deal.

Key Legal Issues To Consider In Australia

Options are powerful, but details matter. Here are the main legal issues Australian businesses should check carefully.

Contractual Clarity And Certainty

Courts are reluctant to enforce vague agreements. Your option should specify the asset clearly, set out a firm option period, define the exercise price (or a clear formula), and detail the steps for valid exercise and completion. If you’re starting from scratch, a tailored approach through contract drafting can help avoid ambiguities that derail enforcement.

Duties, Tax And Costs

Duties and taxes on options depend on the asset type and the state or territory. For property, some jurisdictions impose duty on the grant of the option, on exercise, or both. For shares or other capital assets, different tax outcomes can apply depending on how the option is structured, whether it’s assigned, and when it is exercised.

Because duty and tax treatments vary by jurisdiction and deal structure, factor these costs in early and get professional tax advice before you sign. The above is general information only and not tax advice.

Corporations Act And Fundraising Rules

If your option involves shares or equity, ensure compliance with the Corporations Act 2001 (Cth), including fundraising rules for offers to retail investors and any applicable relief (for example, the small-scale personal offers exemption outlined in section 708). Employee or advisor equity may also need to align with your constitution and any shareholder arrangements.

Australian Consumer Law (ACL)

Options are still business contracts. Representations made during negotiations must not be misleading or deceptive under the Australian Consumer Law. Keep your terms transparent and avoid unfair contract terms in standard form agreements, particularly with small businesses or consumers.

Confidentiality, Exclusivity And IP

Negotiations often involve sensitive financials, customer lists and IP. Use a robust NDA, set rules for use of confidential information, and clarify whether discussions are exclusive or non-exclusive. If the option relates to brand assets, think about trade marks and licensing arrangements you’ll need after exercise.

Assignment And Deal Protections

Decide whether the holder can assign their option rights to another party, and if so, on what terms (consent, notice, conditions). Also consider break fees, deposits and specific remedies if key obligations (like exclusivity or confidentiality) are breached.

What Should Your Option Agreement Include?

A strong option agreement balances legal certainty with the commercial reality of your deal. As a starting point, consider including:

• Parties and background: Who is making the option available, who holds it, and the commercial context in plain English.
• Asset description: Precise details (property address and title particulars; share class and number; IP descriptions) so there’s no doubt about what’s covered.
• Option fee and payment: Amount, timing, and whether any part is refundable or creditable against the purchase price on exercise.
• Option period and expiry: Start and end dates, whether time is of the essence, and any extension or early termination triggers.
• Exercise mechanics: Notice requirements, method of service, deadlines, and a clear completion timetable once exercised.
• Exercise price and adjustments: Fixed price, formula or valuation process; any price adjustments (for example, working capital or prorations) and who pays costs.
• Conditions precedent: Approvals, licences, finance, board or shareholder approval, landlord or third-party consents, and due diligence standards.
• Exclusivity: If agreed, scope, duration and permitted carve-outs (for example, responses to unsolicited offers subject to a matching right).
• Confidentiality and announcements: Ongoing privacy obligations and control of public disclosures before completion.
• Warranties and undertakings: Limited warranties during the option period and conduct obligations (for example, maintaining the business in the ordinary course).
• Assignment and novation: Whether transfer of option rights is allowed and any conditions to doing so.
• Dispute resolution and governing law: How disputes will be handled (negotiation, mediation, arbitration or courts) and which state or territory’s law applies.
• Lapse and termination: When the option lapses automatically, termination for breach, and consequences if the option expires unexercised.

Where an option is part of a broader relationship, you’ll also want the terms to align with your governing documents, such as a Shareholders Agreement and your Company Constitution if shares are involved.

Related Documents You May Need

• Term Sheet or Heads of Agreement: A short, non-binding outline of commercial terms before lawyers draft the full option (a simple Term Sheet can speed up alignment).
• NDA: A standalone confidentiality agreement to protect information exchanged during negotiations and diligence.
• Privacy Policy: If you collect personal information in a data room or during the process, ensure you have a compliant Privacy Policy.
• Underlying sale or licence agreement: The “full” contract that takes effect on exercise (for example, a share sale, asset sale or IP licence).

A Practical, Step-By-Step Approach

1) Map The Deal

Clarify objectives, the asset, timelines, approval pathways and key risks. Decide if a call option, put option, or a combination makes sense.

2) Align Commercial Terms

Discuss the option fee, exercise price or pricing formula, option period, exclusivity (if any), conditions precedent and a realistic completion timeline after exercise.

3) Put It In Writing

Draft a clear, plain-English document that captures exactly what you’ve agreed and how the option will be exercised. This is where tailored contract drafting adds real value-precision now avoids disputes later.

4) Execute And Pay The Fee

Once the agreement is signed and the option fee is paid, the option period begins. Track key dates carefully.

5) Complete Due Diligence And Approvals

Use the option period wisely. Progress diligence, secure finance and obtain required approvals so you’re ready to exercise (or let the option lapse) before the deadline.

6) Exercise Correctly (If You Proceed)

Follow the notice mechanics strictly-method of delivery, content and timing. Then complete the underlying transaction under the agreed process and timeline.

Alternatives To Consider

Options aren’t the only way to protect your position. Depending on your goals and leverage, you could also consider:

• Conditional contracts: Sign the full sale agreement now, but make it conditional on finance approval, FIRB approval, or satisfaction of due diligence.
• Rights of first refusal or first offer: Keep the ability to match third-party offers without locking in a full option.
• Convertible notes: In early-stage capital raises, a convertible note can defer valuation questions while providing a clear path to equity on preset triggers.

If you’re weighing up these paths, a short-form Term Sheet can be a helpful way to compare options before you commit to a full document.

Key Takeaways

• Option agreements let you lock in the right (not the obligation) to buy or sell an asset on agreed terms within a set timeframe-ideal when timing and certainty both matter.
• Clarity is everything: define the asset, option period, option fee, exercise price, exercise mechanics and conditions precedent so the agreement is enforceable and practical.
• Exclusivity is not automatic-if you need it, include it expressly, alongside confidentiality protections like an NDA.
• Duties and taxes can apply differently by state or territory and by asset type; factor them into your modelling early and get tax advice before signing.
• Where equity is involved, check Corporations Act rules (including section 708 exemptions) and align with your Shareholders Agreement and Company Constitution.
• For team incentives, consider whether your arrangement should sit within an Employee Share Option Plan rather than a one-off option.
• A tailored Option Deed drafted in plain English will help you avoid uncertainty, resolve issues faster and keep your deal on track.

If you’d like a consultation on option agreements for your business-or help drafting a tailored Option Deed-you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.