Option to Purchase Agreements in NZ

If you’re negotiating a deal where someone wants to lock in the ability to buy an asset later (or you want to secure the ability to sell later), an option to purchase agreement can be a smart commercial tool.

It can also become a very expensive headache if the terms are vague, the price mechanism doesn’t work in practice, or the agreement doesn’t match the real-world transaction you’re trying to achieve.

In this guide, we’ll break down how an option to purchase agreement works in New Zealand, when businesses use them, and what you should be careful about before you sign.

What Is An Option To Purchase Agreement (And How Does It Work In NZ)?

An option to purchase agreement is a contract where:

one party grants an option (a right) to another party; and
the other party can choose (but is not obliged) to buy a specific asset at a later time, usually on pre-agreed terms.

The party who holds the option is often called the option holder (or “grantee”). The party granting the option is often called the grantor.

In simple terms: the option holder is buying time and certainty. They want the right to buy later, without needing the seller to “stay interested” or renegotiate everything from scratch.

Option vs Sale Agreement: What’s The Difference?

This is where small business owners can get caught out.

A sale and purchase agreement is a binding agreement to sell/buy now (even if settlement happens later).
An option to purchase agreement is a binding agreement that gives one party the right to enter into the sale later (usually by “exercising” the option).

That distinction matters because an option is often used when the buyer isn’t ready (or isn’t allowed) to buy yet, but still wants control over the opportunity.

Is An Option To Purchase Agreement Legally Binding In NZ?

Yes - an option can be legally binding if it’s drafted with the usual contract requirements in mind (for example: clarity, intention to create legal relations, value/consideration, and certainty of terms).

Most disputes happen when a business agrees on the “headline idea” (e.g. “you can buy it in 12 months for $X”) but the paperwork doesn’t properly cover key details like how exercise works, what happens if there’s a breach, what exactly is being sold, and whether any extra formalities apply for that type of asset (for example, property or shares).

When Do NZ Businesses Use Option To Purchase Agreements?

An option to purchase agreement pops up across all sorts of transactions - especially when you’re balancing opportunity against risk.

Common situations include:

1) Commercial Property And Leasing Arrangements

A classic use case is where a tenant wants the right to buy the premises in the future. This can make sense if you’re:

growing a business and want the option to buy once cashflow stabilises;
testing whether a location performs before committing to ownership; or
spending money on fit-out and want long-term control over the site.

In these deals, the option might sit alongside the lease, or be documented separately (and you’ll want to make sure the lease terms and the option terms don’t conflict). This is also where a Commercial Lease Review can be valuable, because the lease usually contains the practical day-to-day obligations that affect the value of the option.

2) Buying A Business In Stages

Sometimes a buyer isn’t ready (or doesn’t want) to buy the entire business immediately. An option can be used to structure a staged acquisition - for example:

buy 30% now and take an option to buy the remaining 70% later; or
operate the business under a management arrangement first, then buy if targets are met.

This is common where the buyer wants “proof” the business performs as expected, or where vendor support is part of the transition.

3) Shares In A Company (Founder Exits, Investors, Key Staff)

Options are frequently used in company ownership scenarios, including:

co-founders agreeing on a pathway for one to buy the other out;
investors negotiating a right to increase their stake if milestones are hit;
a company agreeing to buy back shares from a departing shareholder (where permitted); or
a business giving a key employee or contractor an option to purchase shares later (often as part of an incentive plan).

If shares are involved, your option terms should be consistent with your Shareholders Agreement and any constitutional restrictions (because those documents often control share transfers, pricing, and pre-emptive rights). You’ll also want to consider any Companies Act requirements and the potential tax and employment implications of employee share or incentive arrangements (so it’s worth getting advice before you lock anything in).

4) Assets, Equipment, Or IP

Options can be used for valuable business assets like equipment, stock, client lists, or intellectual property (IP) - particularly where the buyer needs time to line up finance or approvals.

The key here is being crystal clear on what the asset includes (and what it doesn’t), because disputes often turn on scope.

What Should Be Included In An Option To Purchase Agreement?

A good option to purchase agreement is less about fancy legal wording and more about removing uncertainty. You want a document that clearly answers: what can be bought, when, how, and on what terms?

Key clauses usually include the following.

1) The Asset Being Sold (And Exactly What’s Included)

Start with a precise description. For example:

For property: legal description, title details, car parks, fixtures, any included chattels.
For a business: assets vs shares, what contracts transfer, what happens to staff, stock, IP.
For shares: number/class of shares, rights attached, any restrictions on transfer.

If the asset is a business or a significant asset pool, it’s common to back this up with due diligence and disclosure. A Legal Due Diligence process can help you uncover issues early (like contract change-of-control clauses, leases that can’t be assigned, or IP that’s not properly owned).

2) Option Fee (Consideration)

Often, the option holder pays an option fee for the right to buy later. That fee might be:

non-refundable (commonly);
credited toward the purchase price on completion; or
partly refundable if certain events occur.

From a business owner perspective, the big question is: what are you paying (or receiving) for the option, and what do you get if the deal doesn’t proceed? (In practice, “consideration” can be money, but it can also be another form of agreed value - the key is that the option is supported by something of value and is properly documented.)

3) The Option Period (Timeframes)

This is the window when the option can be exercised - e.g. “any time between 1 July and 30 September 2026”.

Be careful with:

automatic extensions (and the conditions for extension);
events that pause the option period (like unresolved disputes); and
time being “of the essence” (which can make deadlines strict).

4) How The Option Is Exercised

This sounds simple, but it’s a common source of disputes. The agreement should specify:

how notice must be given (email, post, to which address/person);
what must be included in the notice;
whether a deposit is payable on exercise; and
what happens next (does a sale agreement automatically come into effect, or do parties sign a separate agreement?).

If a separate sale agreement is required, you should consider attaching it as a schedule or using a strong term sheet or Heads of Agreement to reduce the risk of last-minute renegotiation.

5) Price And Payment Mechanics

An option to purchase agreement can set:

a fixed price;
a price formula (for example, a multiple of EBITDA, or based on asset value); or
a valuation mechanism (independent valuer process).

For small businesses, the “valuation mechanism” approach often sounds fair - but it needs careful drafting. If the agreement doesn’t specify how the valuer is appointed, what information they can rely on, and what happens if a party refuses to cooperate, you can end up with a stalled transaction (and potentially a legal dispute).

6) Conditions Precedent (If Any)

Sometimes the option is only exercisable if certain conditions are met, such as:

finance approval;
board or shareholder approvals;
landlord consent (where a lease is involved); or
regulatory approvals (industry-specific).

If you include conditions, make sure they’re practical, time-bound, and clear on who is responsible for satisfying them.

7) Default, Termination, And Remedies

You’ll want clarity on what happens if:

the option holder misses a deadline;
the grantor sells the asset to someone else (or tries to);
either party breaches confidentiality or restraint obligations; or
there is insolvency or a major change in control.

These clauses aren’t just “legal boilerplate” - they’re the safety rails that protect you if things go sideways.

What Are The Biggest Risks (And Mistakes) For Small Businesses?

Options are powerful, but they’re also easy to get wrong if they’re treated as an informal handshake deal.

Here are the mistakes we commonly see small businesses run into.

1) The Agreement Isn’t Certain Enough To Enforce

If key terms are unclear - especially price, scope, or exercise mechanics - you can end up with an option that’s difficult to enforce.

Even where both parties have “good intentions”, vague drafting can leave you stuck in dispute mode at exactly the moment you need certainty.

2) The Option Conflicts With Other Documents

If you’re dealing with property, a lease, or company shares, the option can clash with:

lease provisions (assignment, renewals, make-good, rent review timing);
share transfer restrictions;
pre-emptive rights; or
director/shareholder approval requirements.

For companies, this is why it’s worth checking alignment with your Company Constitution and shareholder arrangements before locking in an option.

3) The Buyer Improves The Asset Without Enough Protection

Picture this: you lease a space, spend $80,000 on fit-out, and have an option to purchase the premises in two years. If the option terms don’t protect you properly (or the lease doesn’t allow the fit-out to stay), you could lose leverage - or value - if the deal doesn’t proceed.

If your option is linked to improvements, you may need extra detail around:

who owns improvements during the option period;
what happens to improvements if the option isn’t exercised; and
landlord or grantor consent processes.

4) Not Thinking Through “What If We Need To Change The Deal?”

Businesses evolve. Sometimes you need to extend timelines, adjust pricing, or deal with unexpected changes (like a new shareholder or a restructure).

If you do need to change the terms, it’s usually better documented cleanly (rather than through informal emails) using something like a Deed of Variation so everyone knows exactly what has changed and what hasn’t.

5) Forgetting About Transfer Mechanics (Assignment, Novation, Consents)

If the option holder wants the ability to transfer the option to another entity (for example, you’re restructuring or bringing in an investment partner), your agreement should say whether assignment is permitted and on what conditions.

Where rights are being transferred, documenting it properly (and getting any required consents) matters. Depending on the situation, a Deed of Assignment may be needed to avoid uncertainty about who holds the rights and obligations.

How Do You Negotiate An Option To Purchase Agreement Without Losing Leverage?

An option is often negotiated early - when both parties are optimistic. That’s also when you can set guardrails that prevent messy disputes later.

Here are practical negotiation tips that tend to help small businesses.

Get Clear On The Commercial Goal First

Before you negotiate clauses, make sure you can answer:

Why do we need an option instead of buying now?
What needs to happen during the option period (finance, milestones, due diligence, build works)?
What’s the “walk away” outcome each party can live with?

When those points are clear, it’s much easier to draft an option that actually matches your operations.

Use Objective Pricing Where Possible

If you can’t agree on a fixed number, consider a formula that relies on objective inputs. If you use a valuer, make the process workable (appointment method, timelines, information sharing, cost allocation, and what happens if a party doesn’t cooperate).

Be Realistic About Timeframes And Notice

If the option can be exercised on short notice but finance takes weeks, that mismatch can create avoidable stress. Make sure the notice period, deposit requirements, and settlement timeframe reflect reality.

Lock In The Next Document Early

If exercising the option triggers a separate sale contract, you’ll generally want the form of that agreement drafted (or at least agreed in principle) upfront.

For share transactions, that could involve a tailored Share Sale Agreement sitting alongside the option, so there’s no confusion about warranties, settlement, and handover when the time comes.

Key Takeaways

An option to purchase agreement gives one party the right (but not the obligation) to buy an asset later, usually on pre-agreed terms.
NZ businesses commonly use options for commercial property, staged business acquisitions, and share transfers (founder exits, investors, key staff arrangements).
A strong option should clearly cover the asset scope, option fee, option period, exercise mechanics, pricing method, and what happens if something goes wrong.
The biggest risks usually come from vague pricing/valuation clauses, conflicts with other documents (like leases or shareholder arrangements), and failing to plan for changes during the option period.
If the option is part of a broader deal (lease, share sale, business sale), make sure all documents are consistent - otherwise you can lose the benefit of the option when it matters most.
Because options are highly fact-specific (and can have tax, property, and company-law wrinkles depending on the asset), it’s worth getting the agreement drafted or reviewed so it reflects your commercial goals and protects you from day one.

If you’d like help drafting or reviewing an option to purchase agreement (or the related sale/lease documents), you can reach us at 0800 002 184 or team@sprintlaw.co.nz for a free, no-obligations chat.

Option to Purchase Agreements in NZ: How They Work