Due Diligence NZ
Before You Commit or Buy

Most NZ business purchases that go wrong don't go wrong because of bad luck. They go wrong because the buyer didn't ask the right questions before they signed. Due diligence is the structured process for asking those questions and getting answers you can actually rely on. This guide covers what to check, where risk usually sits and how the relevant NZ legislation shapes what you need to do.

What does due diligence actually cover?

Due diligence is a structured review of a business or commercial opportunity before you commit. In a business purchase it typically covers financial position, key contracts, employment arrangements, company structure, regulatory compliance and any obligations sitting on the public record. The point isn't to produce a giant report. The point is to know what you're really buying and what risk comes with it.

In NZ the legal principle of caveat emptor still applies. The seller has limited disclosure obligations and it's on you as the buyer to find the problems before settlement. That's why a proper review matters.

What is a due diligence condition and why does it matter?

Most NZ business sale agreements are conditional. A due diligence condition gives you a defined window, often 10 to 15 working days, to investigate the business and either confirm you're satisfied or cancel. Used properly, it's the most valuable buyer protection in the agreement. Used badly, it's just a calendar reminder before settlement.

The single most common mistake we see is buyers signing the agreement first and then trying to organise a review with days to spare. Engage someone to run the review at the same time you're negotiating the agreement, not after.

Where do the biggest risks usually sit?

In our experience the same risk areas come up over and over. Tax obligations to IRD are often understated, especially GST and PAYE. Employment arrangements are frequently undocumented or non-compliant with the Employment Relations Act 2000. Key supplier and customer contracts often contain change-of-control clauses that trigger on a sale.

Security interests are another big one. A search on the PPSR under the Personal Property Securities Act 1999 often reveals registered interests over the assets the seller is offering you. Those need to be discharged at or before settlement, or you don't really own what you've paid for.

What sits on the public record before you ever ask the seller?

A surprising amount of useful information is already public. The Companies Office register shows shareholders, directors, registered office, annual return status and any historical changes that might raise questions. The PPSR shows registered security interests over the company's personal property. Court records show any active or recent litigation.

We pull these as a matter of course because they're the cheapest way to spot a red flag. If the public record contradicts what the seller has told you, that's not a small thing.

How do findings translate into a better deal?

Findings aren't just for ticking a box. They're for renegotiation. A documented issue in a key contract, an unresolved employment dispute or a tax exposure can justify a price reduction, a specific warranty, an indemnity or a condition to be met before settlement.

Most NZ business sale negotiations involve some adjustment after the review. A clean business gets close to its asking price. A business with issues gives you leverage. The cost of a proper review is usually small relative to what it lets you negotiate or avoid.

Is due diligence only for buyers?

No. Sellers benefit too. A pre-sale review finds the things a buyer will find anyway, except you find them first and you can either fix them or price them in. Going to market with a clean file is the single biggest thing a seller can do to protect value.

The same principle applies to investors taking an equity stake, partners entering a joint venture and anyone signing a major long-term contract. If you're committing to something significant on the basis of information provided by someone else, you need to know that information stacks up.