How To Buy A Business In New Zealand: Legal Checklist

Buying an existing business can be a smart shortcut to revenue, customers, staff, systems, and supplier relationships. But when you buy a business (especially if you’re doing it for the first time), it’s easy to focus on the headline numbers and overlook the legal details that actually determine what you’re buying.

In practice, the “business” is usually a bundle of assets, contracts, people, intellectual property, data, and obligations. If you don’t confirm what transfers to you (and what doesn’t), you can end up paying for value that never arrives - or inheriting problems you didn’t price in.

This checklist is written for SMEs and startups looking to buy a business in NZ: practical, time-poor, and wanting to get protected from day one. We’ll walk through the key legal decisions and documents to think about before you sign anything.

Should You Buy The Assets Or The Shares?

One of the first legal decisions is how you’re buying the business. In New Zealand, most purchases are structured as either:

• Asset sale: you buy selected business assets (and sometimes agree to take on specific liabilities), or
• Share sale: you buy the shares in the company that owns the business (meaning you effectively take over the whole company, including its history).

There’s no one “best” option - it depends on the risks, what the business owns, and what contracts need to remain in place.

Asset Sale (Common For SMEs)

An asset sale usually gives you more control over what you take on. You can negotiate to purchase things like:

• plant and equipment
• stock
• customer lists and goodwill
• the trading name and branding (where transferable)
• website, domain names, social media accounts
• key contracts (where assignment is permitted)

This is often documented in an Asset Sale Agreement, which should clearly describe what’s included, what’s excluded, and what conditions must be satisfied before settlement.

Key watch-out: some important things (like leases, supplier agreements, licences, and software subscriptions) may not automatically transfer with the assets. They may require third-party consent or a separate assignment/novation.

Share Sale (Common Where Contracts/Licences Must Stay In Place)

In a share sale, the company stays the same - only the ownership changes. That can be attractive if the business relies on contracts or approvals that are hard to transfer.

But it also means you’re taking ownership of a company that may have existing (and sometimes unknown) liabilities attached to it - such as tax issues, employment disputes, historical compliance problems, warranty claims, or unresolved debts. If you’re considering this approach, a well-drafted Share Sale Agreement is crucial, along with strong warranties and indemnities from the seller.

Practical tip: if you’re a startup buying a mature business (or a “bolt-on” acquisition for growth), it’s worth modelling your worst-case scenarios and making sure the legal documents match that risk profile.

Step-By-Step Legal Due Diligence Checklist

Due diligence is where you confirm the “story” you’ve been sold matches the legal and commercial reality. It’s also where you uncover deal-breakers early enough to renegotiate price, ask for protections, or walk away.

Here’s a practical legal checklist to work through before you commit.

1) Confirm Who Owns What (And That It Can Be Sold)

Start with ownership and title. Ask for evidence that the seller owns the core assets and has the right to sell them to you, including:

• major equipment and vehicles (and whether there is finance owing)
• stock ownership and stock count process
• domain names and websites (check who the registrant is)
• brand assets (logos, packaging files, marketing materials)
• software licences and subscriptions (and transferability)

If key assets are leased, financed, or owned by a related entity, you’ll want that documented clearly so you don’t pay for something you can’t legally receive.

2) Check The Contracts That Actually Run The Business

Many businesses are only valuable because of their contracts. Review:

• supplier agreements (pricing, exclusivity, termination rights)
• customer agreements (payment terms, refunds, service levels)
• distribution arrangements
• contractor arrangements
• software/SaaS and payment processor terms

Look for “change of control” clauses (common in share sales) and “no assignment without consent” clauses (common in asset sales). These clauses can stop contracts transferring automatically - meaning you might not actually be buying the relationships you think you are.

3) Review Financial And Operational Red Flags (From A Legal Angle)

Your accountant will likely lead financial due diligence, but there are legal angles you should still pressure-test, such as:

• Revenue concentration: if 1–2 customers drive most revenue, do you have long-term contracts or can they leave tomorrow?
• Refunds/complaints history: are there patterns that suggest consumer law risk?
• Unpaid debts: is the business chasing overdue invoices, and are the debt collection processes lawful and documented?
• Disputes: any threatened claims, tribunal matters, or regulatory complaints?

If the business deals with consumers, check they’re aligned with the Fair Trading Act 1986 (misleading advertising and representations) and the Consumer Guarantees Act 1993 (product/service guarantees and remedies). These obligations don’t disappear just because ownership changes.

4) Property And Premises: Lease Terms Can Make Or Break The Deal

If the business operates from premises, treat the lease as a “core asset”. Key things to confirm include:

• term remaining, renewal rights, and rent review timing
• outgoings and who pays what
• make-good obligations at end of lease
• permitted use (does it match how you’ll run the business?)
• landlord consent requirements for assignment

It’s often worth getting a Commercial Lease Review before you settle, because unexpected obligations (like a costly make-good clause) can materially change your true purchase price.

If you’re taking over an existing lease, the transfer may involve a Deed of Assignment of Lease, and landlords often require financial information and guarantees.

5) IP, Brand, And Online Assets

For many SMEs and startups, the real value sits in intellectual property (IP): the brand name, domain, content, designs, and customer trust.

Confirm what IP is owned by the seller versus created by contractors or employees. If contractors built the website, branding, or software, you’ll want to confirm IP assignment has occurred (otherwise, the seller might not own what you’re paying for).

If the business has registered trade marks, confirm they can be transferred and that there are no disputes or oppositions on foot.

6) Compliance And Regulatory Licences

Depending on the industry, the business may need approvals or licences to operate. Examples include certain food-related registrations, health-sector compliance, alcohol licensing, transport-related approvals, or council permissions.

Don’t assume you can simply “step into” the seller’s approvals. Some licences are personal to the holder or require the regulator’s consent before transfer. This should be built into your contract as a condition of settlement if it’s essential to operating.

7) Tax, GST And Structure (Get Advice Early)

Tax can materially change the economics of a deal, and the tax treatment often differs depending on whether you’re buying assets or shares. For example, GST may apply to an asset sale unless the transaction qualifies as a “going concern” for GST purposes (and the documentation is set up correctly).

This article is general information only and isn’t tax advice. Before you sign, it’s worth having your accountant or tax adviser review the proposed structure and the sale documents so the tax outcomes match what you’re expecting.

8) Do Due Diligence Properly (And Document It)

Due diligence can feel like a lot - but it’s usually cheaper than fixing surprises later. If you want a structured approach, a Legal Due Diligence Package can help you review the key risk areas before you commit to the purchase.

Key Agreements You’ll Need Before You Settle

When you buy a business, the legal documents are what turn a handshake deal into something enforceable. They also determine what happens if something goes wrong.

The Sale Agreement (The Centrepiece)

Your main agreement should cover, at a minimum:

• purchase price and what it includes (and excludes)
• deposit and how it’s held
• settlement date and handover arrangements
• conditions (finance, landlord consent, contract assignments, licence approvals)
• employee arrangements (who transfers, on what terms)
• stock valuation method (if stock is included)
• warranties (promises from the seller about the business)
• indemnities (who pays if a known risk becomes a cost)
• restraint of trade (to stop the seller opening next door)
• training and transition support

In many SME transactions, this is done through a Business Sale Agreement that’s tailored to the deal structure and your risk profile.

Side Documents People Forget (But Often Need)

Depending on the deal, you may also need:

• lease assignment documents (and landlord consent)
• IP assignment (trade marks, domain names, copyright materials)
• novation or assignment deeds for key customer/supplier contracts
• shareholder documents if you’re buying with co-founders or investors (to set governance from day one)
• personal guarantees (sometimes required by landlords or suppliers)

The big idea is simple: if something is essential to operating on day one, it should either transfer automatically under the agreement or be a condition you control before settlement.

What Happens To Staff, Customers And Data?

When you buy a business, you’re not only buying “stuff” - you’re often stepping into relationships. This is where many buyers get caught out, because the legal obligations don’t always align with what feels commercially convenient.

Employees: Are You Taking Them On?

Employee transfer is a key deal point. In many business sales, staff will either:

• transfer to you (sometimes with continuity of service), or
• be terminated by the seller and you re-hire, or
• some combination of both (for example, you take key staff but not everyone).

You’ll want clarity on:

• who is responsible for paying outstanding holiday pay and other entitlements
• what employment terms carry over
• what happens with any bonuses, commissions, or incentive schemes
• restraint/confidentiality obligations (and whether they’re enforceable)

Important NZ-specific note: some businesses (and some roles) may be covered by “vulnerable worker” protections and related restructuring/transfer obligations under NZ employment law. These rules can affect whether certain employees must be offered transfer on their existing terms and whether continuity of employment is preserved. You should get advice early if the business has cleaning, food catering, security, laundry, or similar services, or if you’re unsure whether the rules apply.

If you’re taking staff on, it’s a good time to update documentation so your team is protected from day one with an Employment Contract that matches your business model (especially if you’re scaling or introducing new systems).

Employment law in NZ is heavily process-driven, and the Employment Relations Act 2000 sets expectations around good faith and fair treatment. So even during a sale, you’ll want to be careful about how changes are communicated and implemented.

Customers And Consumer-Facing Terms

If the business sells to consumers, you’re inheriting expectations around refunds, quality, and marketing claims.

Even if the seller created the advertising, you can end up wearing the consequences if misleading representations continue after you take over. This is why your handover plan should include reviewing:

• website claims and product descriptions
• returns/refunds processes
• warranties and guarantees offered
• subscription or ongoing service terms

Customer Data And Privacy Compliance

If you’re acquiring a customer list, email database, or user accounts, you’re dealing with personal information. That brings the Privacy Act 2020 into the picture.

Ask questions like:

• What personal data is held (names, emails, addresses, health info, payment details)?
• Where is it stored (CRM, email platform, spreadsheets, cloud services)?
• On what basis was it collected, and what were customers told?
• Has the business had any privacy complaints or data breaches?

After settlement, you’ll also want to ensure your public-facing documents reflect what you actually do with data, including having a fit-for-purpose Privacy Policy if you collect customer information online or through your operations.

Health And Safety

If the business has premises, staff, contractors, or interacts with the public, you also need to think about health and safety compliance under the Health and Safety at Work Act 2015.

During due diligence, ask for:

• incident records and hazard registers
• training logs (where relevant)
• health and safety policies and procedures
• any regulator correspondence

This isn’t about creating paperwork for the sake of it - it’s about knowing what risks you’re stepping into and what you need to improve early.

Funding, Security Interests And Settlement

How you pay for the purchase matters legally, not just financially. Funding arrangements can introduce extra contracts, deadlines, and conditions that must align with your sale agreement.

Make Finance A Condition (Where Needed)

If you’re borrowing to fund the purchase, it’s common to include a “finance condition” so you’re not locked into settlement without confirmed funding.

You’ll want the condition drafted carefully so it:

• gives you enough time to obtain approval
• requires reasonable steps (without forcing you into a bad loan)
• is clear on what happens to the deposit if finance isn’t obtained

Security Interests And PPSR Checks

If the seller has financed equipment or granted security over assets, you’ll want to confirm whether there are existing security interests registered on the Personal Property Securities Register (PPSR). If you don’t, you could end up buying assets that a lender can still claim against.

This is particularly relevant when you buy business assets like vehicles, machinery, POS systems, or high-value equipment.

Plan The Settlement And Handover Properly

Settlement should be more than a bank transfer. Your handover plan should cover:

• transfer of bank accounts/payment systems (or setting up new ones)
• handover of passwords, domains, email accounts, and software access
• notifying customers and suppliers (and how that’s communicated)
• staff announcements and operational training
• a clear “cutover” date for responsibility (including refunds and complaints)

If the deal is significant for your SME or startup, it can be worth building a short transition period into the agreement (for example, the seller provides training/support for 2–4 weeks) so the value you paid for actually transfers in practice.

Key Takeaways

• When you buy a business, you’re buying a bundle of assets and obligations - so make sure the legal documents clearly state what you’re getting and what you’re not.
• Decide early whether an asset sale or share sale suits your risk profile, because this impacts what liabilities you might inherit and what consents you’ll need.
• Run legal due diligence across ownership of assets, key contracts, premises/leases, IP, regulatory compliance, tax/GST considerations, and any existing disputes before you commit.
• Make sure your sale agreement covers conditions, warranties, indemnities, restraint of trade, staff arrangements, stock valuation, and a practical settlement/handover process.
• If employees are transferring, update your employment paperwork so you’re protected from day one and you understand who is paying outstanding entitlements (and check whether any vulnerable worker transfer rules apply).
• If customer data is part of the deal, treat privacy as a key workstream and ensure your processes align with the Privacy Act 2020.
• Align your funding and settlement plan with the contract timelines, and check for security interests over business assets before you pay.

If you’d like help buying a business in New Zealand - including due diligence, reviewing or drafting the sale documents, or sorting out lease and employee transfer issues - you can reach us at 0800 002 184 or team@sprintlaw.co.nz for a free, no-obligations chat.