Understanding Share Sales (2026 Updated)

Selling shares in a New Zealand company can be an exciting milestone. Maybe you’re ready to cash out after years of building, you’ve found the perfect strategic buyer, or you’re bringing in an investor to help you grow.

But share sales can also get tricky fast. You’re not just “selling a business asset” - you’re transferring ownership of a legal entity that may have employees, contracts, debts, intellectual property, tax obligations and compliance history attached to it.

This guide is updated for current NZ business conditions and common deal structures, so you can understand how share sales work in practice and what to watch out for before you sign anything.

What Is A Share Sale (And How Is It Different From An Asset Sale)?

A share sale is where the owner (shareholder) sells some or all of their shares in a company to a buyer. The company itself stays the same legal entity - it’s just that the people who own it change.

This is different from an asset sale, where the company (or business owner) sells the business assets (like stock, equipment, customer lists and goodwill) to a buyer, often leaving behind liabilities and the company “shell”.

Why The Difference Matters

In a share sale, the buyer is effectively stepping into the company’s shoes. That means the buyer usually inherits:

• the company’s contracts (supplier agreements, customer agreements, leases)
• employees and employment obligations
• company liabilities (known and unknown)
• compliance history and regulatory issues
• tax positions (including past filings and exposures)

In an asset sale, you can sometimes “pick and choose” which assets and contracts move across, and which liabilities stay behind - but that doesn’t mean asset sales are automatically simpler. They can create transfer and consent issues (for example, landlord consent to assign a lease) and may involve more steps operationally.

If you’re weighing up options, it’s worth understanding the practical differences between Share Sale vs Asset Sale early, because the structure affects everything that follows (including due diligence, warranties, and how the parties manage risk).

When Does A Share Sale Make Sense For Your Business?

There’s no “one size fits all” answer - the right structure depends on what you’re selling, who you’re selling to, and what risks each side is willing to take on.

Share sales are common in New Zealand where:

• The buyer wants continuity (same company, same contracts, same trading history).
• The business relies on licences or approvals that are tied to the company (or are easier to maintain if the entity stays the same).
• The company has valuable contracts that would be painful to assign or renegotiate.
• There are multiple shareholders and one is exiting while others stay in.
• An investor is buying a minority stake (e.g. 10–30%) rather than buying the business outright.

A Quick Example

Imagine you run a successful service business through a company. You’ve got recurring customer contracts, a small team, and supplier arrangements that keep things running smoothly. In a share sale, the buyer takes over the company and (usually) keeps all those relationships intact - without needing each customer or supplier to sign new contracts.

That convenience is often why buyers like share sales. The trade-off is that buyers will usually push hard on due diligence and warranties, because they’re inheriting the company’s history.

What Are The Main Legal Steps In A Share Sale?

A well-run share sale usually follows a predictable pathway. The details vary, but the steps below are a good high-level roadmap.

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

Before you talk price, check the basics:

• Who are the shareholders and how many shares does each hold?
• Are there different share classes with different rights?
• Are there any restrictions in the company’s constitution or shareholders agreement?
• Are there pre-emptive rights (rights of first refusal) requiring shares to be offered to existing shareholders first?

This is where a Company Constitution and a Shareholders Agreement often become critical documents. If you have them in place (and they’re up to date), the sale process is usually smoother and disputes are easier to avoid.

2) Agree The Commercial Deal (Price, Timing, What’s Included)

Most share sales involve negotiation around:

• Price (fixed price, completion accounts, or earn-out arrangements)
• Deposit and payment schedule
• Conditions (e.g. finance, due diligence, third-party consents)
• Restraints (non-compete / non-solicitation)
• Handover period and transitional support

Even if you’re “agreed in principle”, don’t assume you’re done. It’s common for deals to change once due diligence begins and risks are identified.

3) Due Diligence (The Buyer Checks Your Company)

Due diligence is the buyer’s opportunity to verify what they’re buying and identify risks. In a share sale, due diligence tends to be broader than in an asset sale because the buyer is taking on the company as a whole.

Due diligence often covers:

• financial statements, debts, cash flow and tax filings
• material contracts (customers, suppliers, finance arrangements)
• intellectual property ownership (brand, website, software, content)
• employee arrangements, leave liabilities and disputes
• privacy and data handling (especially if customer data is part of the business value)
• any litigation, complaints or regulatory issues

From a seller’s perspective, you’ll usually want to prepare a clean data room and resolve obvious issues early. From a buyer’s perspective, proper legal due diligence helps prevent “surprises” after settlement.

If you’re not sure what “good” looks like here, a Legal due diligence process can help you understand the real risk profile of the company before you commit.

4) Document The Deal Properly

A share sale should be documented in a written agreement that reflects the negotiated terms and allocates risk clearly. The agreement is also where key protections live (like warranties, indemnities, conditions precedent and limitation of liability clauses).

In most cases, you’ll want a properly drafted Share sale agreement rather than relying on generic templates. Templates rarely reflect your exact shareholding structure, payment terms, risk profile, or industry-specific issues.

5) Complete Settlement And Update Company Records

At settlement, the parties usually:

• exchange signed documents
• pay the purchase price (or first tranche)
• transfer shares and update the share register
• deliver resignations/appointments of directors (if applicable)
• hand over company books, accounts, keys, access credentials and records

There’s often a post-settlement “tidy up” phase too - especially if the seller is providing transitional services or if the price is adjusted later under completion accounts mechanisms.

What Are The Key Legal Issues In A Share Sale (And How Do You Manage The Risk)?

Share sales are largely about risk management. The buyer wants confidence they’re buying what they think they’re buying. The seller wants to avoid open-ended liability after the sale.

Here are some of the most common legal pressure points.

Warranties And Indemnities

Warranties are statements about the company (for example, that financial statements are accurate, there are no undisclosed disputes, IP is owned by the company, taxes are up to date, and so on). If a warranty turns out to be false, the buyer may have a claim.

Indemnities are usually more specific promises to cover a particular risk (for example, “the seller indemnifies the buyer for any tax arising from pre-completion periods”). Indemnities can be powerful, so sellers generally want to keep them narrow and capped where possible.

Good agreements set out:

• time limits for claims
• financial caps and thresholds
• the process for making and responding to claims
• disclosure rules (what the seller must reveal to qualify warranties)

Employee Liabilities And Continuity

Because the company continues to exist, employees usually remain employed by the same legal employer - even after the shares change hands. That can be a benefit (less disruption), but the buyer will still care about:

• employment agreements being enforceable and up to date
• any disputes, grievances or disciplinary issues
• leave and holiday pay liabilities
• contractor vs employee risks

If you’re a business owner, it’s worth checking whether you have consistent, signed Employment Contract documentation in place, because messy employment records are a common due diligence red flag.

Contract Change Of Control Clauses

Even though the company doesn’t change, some key contracts may treat a share sale as a “change of control” event. That can trigger:

• a requirement to notify the other party
• consent before the sale can complete
• termination rights
• renegotiation of pricing or terms

This comes up often with major customer contracts, lender agreements, and commercial leases. It’s one of the reasons due diligence should happen early - you don’t want the deal to be conditional on consents you can’t get.

Misrepresentation And Fair Trading Risk

Sellers should be careful about how they describe the business during negotiations. In New Zealand, misleading statements in trade can create real legal exposure under the Fair Trading Act 1986, even if the buyer is sophisticated.

This doesn’t mean you can’t market your business confidently. It does mean you should be accurate about revenue, customers, contracts, and future prospects - and make sure the agreement properly records what has (and hasn’t) been promised. (If you’re wondering how the law treats incorrect statements, it’s closely related to concepts like misrepresentation.)

Data And Privacy Obligations

If the company holds customer data, mailing lists, health information, or any sensitive personal information, privacy is part of the deal risk. In New Zealand, the Privacy Act 2020 requires organisations to take reasonable steps to protect personal information and handle it in accordance with privacy principles.

A share sale doesn’t automatically remove privacy responsibilities - the company remains responsible before and after the sale. Buyers will often want to confirm you have compliant systems and public-facing documentation like a Privacy Policy, especially if the business is online or data-driven.

What Documents Do You Usually Need For A Share Sale?

The documents required depend on the company, the buyer, and how complex the transaction is. That said, most NZ share sales involve a core set of documents that you should expect (and budget time to prepare).

Core Transaction Documents

• Share Sale Agreement (the main contract covering price, settlement, conditions, warranties and indemnities)
• Disclosure letter (where the seller discloses exceptions to warranties)
• Share transfer forms and updates to the share register
• Board and shareholder resolutions (if required by the constitution or Companies Act processes)
• Resignation/appointment documents for directors and officers (where control is changing)

Supporting Business Documents (Often Requested In Due Diligence)

• material customer and supplier contracts
• leases, hire agreements, finance documents and guarantees
• employment agreements and key policies
• IP registrations and evidence of IP ownership
• tax records and filings
• privacy and cybersecurity documents (where relevant)

If you’re bringing in an investor rather than selling 100% of the company, the “document set” can shift. It’s common to update your shareholders arrangements so everyone’s clear on decision-making, dividends, exits and what happens if someone wants to sell later.

This is exactly the kind of situation where a good Shareholders Agreement can prevent disputes - because it forces the hard conversations upfront (instead of during a future fall-out).

Key Takeaways

• A share sale transfers ownership of the company by selling shares, which means the buyer generally inherits the company’s assets, contracts, employees and liabilities.
• Share sales often suit businesses where continuity matters, but they usually require deeper due diligence and stronger contractual protections than a simple asset transfer.
• Before you agree to sell, check your company records and any restrictions in your Company Constitution or Shareholders Agreement, including pre-emptive rights and change of control rules.
• Most share sale risk is managed through a properly drafted share sale agreement, including warranties, indemnities, disclosure, caps and time limits on claims.
• Employee arrangements, key contracts, and privacy compliance are common due diligence focus areas, so it’s worth getting those foundations tidy early.
• Because every company (and every deal) is different, getting legal advice early can help you avoid delays, renegotiations, and avoidable post-settlement disputes.

If you’d like help with a share sale, share purchase, or getting your company documents ready for investment or exit, you can reach us at 0800 002 184 or team@sprintlaw.co.nz for a free, no-obligations chat.