Alex is Sprintlaw's co-founder and principal lawyer. Alex previously worked at a top-tier firm as a lawyer specialising in technology and media contracts, and founded a digital agency which he sold in 2015.
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If you’re running (or buying) a small business, you’ve probably heard someone say “just put it in a trust” - whether that’s for asset protection, tax planning, succession planning, or holding shares in a company.
But trusts aren’t a “set and forget” structure. In practice, there are specific New Zealand trust compliance requirements business owners need to understand, especially around registrations (like NZBN and IRD numbers) and ongoing record-keeping under the Trusts Act 2019.
In this guide, we’ll break down what you typically need to have in place for a trust used in a business context, what the ongoing administration looks like, and the common compliance traps we see small business owners fall into.
What Are Trust Requirements In New Zealand For Small Business Owners?
At a high level, a trust is a legal relationship where trustees hold and manage property for the benefit of beneficiaries. If you’d like a refresher on the basics before we get into compliance, Trust is a good starting point.
When people talk about trust requirements in New Zealand, they’re usually referring to three different categories of obligations:
- Trust law duties (mainly under the Trusts Act 2019, plus general trustee duties).
- Tax and IRD obligations (income tax filings, potential GST, employer obligations, etc.).
- Business compliance if the trust is trading (contracts, privacy, employment, financial record-keeping, and sometimes sector-specific rules).
The exact requirements will depend on how your trust is being used. Common small business scenarios include:
- A trading trust (the trust itself runs the business).
- An asset-holding trust (the trust owns key assets like property, vehicles, equipment, or IP and leases/licences them to an operating entity).
- A trust that holds shares in a company that operates the business (often used for succession/asset protection planning) - Holding Shares Through Trust is a common approach here.
If you’re considering whether a trust structure makes sense for your business, you’ll also hear about Discretionary Trust setups (where trustees have discretion over distributions). These can be useful, but they do come with admin responsibilities you’ll want to be comfortable with.
Why Getting The Legal Foundations Right Matters
When a trust is used properly, it can be a strong part of your “protected from day one” setup.
But if it’s administered poorly (for example, mixing trust money with personal money, or failing to keep trustee decisions on record), it can create disputes, tax issues, and real headaches when you’re trying to sell the business, bring in investors, or deal with a broader ownership dispute.
Do I Need An NZBN For A Trust?
An NZBN (New Zealand Business Number) is a unique identifier used to make it easier for organisations to do business with each other and with government agencies.
Whether a trust “needs” an NZBN depends on how the trust is operating. There isn’t a single rule that applies to every trust, but in business contexts an NZBN is often useful (and sometimes effectively required by the organisations you deal with).
When An NZBN Is Commonly Needed (Or Very Helpful)
If your trust is running a business (i.e. a trading trust), it’s common to apply for an NZBN because you’ll often be asked for it when:
- Setting up supplier accounts
- Dealing with government agencies or procurement systems
- Onboarding with certain payment providers or wholesale platforms
- Registering for other systems that expect an “organisation identifier”
Even where it’s not strictly mandatory in every situation, having an NZBN can make your operations smoother - particularly if you’re trying to look credible to larger customers, landlords, or lenders.
NZBN Vs Company Number (And Why It Matters)
A common confusion for small business owners is assuming that the trust is a company. It’s not. A trust is a legal relationship; it doesn’t have shareholders and directors like a company does.
If your business is operated through a company (with the trust holding the shares), the company will have its own company number and will usually also have its own NZBN.
This distinction matters because invoices, contracts, bank accounts, and registrations should match the correct entity. Mixing these up is one of the fastest ways to create compliance problems later.
Practical Tip: Keep Your “Entity Map” Clear
If your structure is:
- Trust (as shareholder) + Company (as trading entity), or
- Trust (owns property) + Company/Sole trader (operates business),
make sure you keep a clear record of who does what, and which entity signs which agreements. This is the kind of thing we often review as part of a Legal Health Check, especially if you’re planning to scale or sell.
Does A Trust Need An IRD Number And Tax Registrations?
In many business contexts, a trust will typically need its own IRD number, and it may need other tax registrations depending on what it does.
From a tax perspective, a trust is commonly treated as a separate taxpayer, and trustees are responsible for meeting filing and payment obligations. This section is general information only and isn’t tax advice - trusts can be set up and taxed differently depending on the facts, so it’s worth speaking with your accountant (and getting legal advice to ensure your documents align).
When You’ll Need A Separate IRD Number For The Trust
A trust will generally need its own IRD number where it needs to interact with IRD as a trust (for example, to report trust income). This commonly includes where the trust:
- Earns income (including business income)
- Needs to file a trust income tax return
- Opens accounts and investments that require tax reporting
- Registers for GST or becomes an employer
Even if the trust is mainly holding assets and receiving rent or dividends, an IRD number is commonly needed so that income can be returned under the trust’s details (rather than being mixed up with an individual or another entity).
GST Registration (If The Trust Is Trading)
If the trust is carrying on a taxable activity, it may need to register for GST once turnover meets the registration threshold (currently $60,000 in any 12-month period).
This is a classic “get advice early” area, because GST can interact with:
- How assets are purchased and held (especially property and high-value equipment)
- Whether a trust is truly “trading” or just passively holding assets
- Whether there are multiple associated entities that should be considered together
If you’re unsure, it’s worth speaking to both an accountant and a lawyer, so your trust deed, business contracts, and tax setup all align.
Employer Registrations (PAYE, KiwiSaver, etc.)
If your trust employs staff, you’ll need to meet employer obligations (like PAYE deductions and other payroll requirements). Just as importantly, you’ll want employment paperwork that correctly names the trust as the employer (not you personally, and not another entity in your group). An Employment Contract that matches the right employing entity can save you a lot of pain if there’s a dispute later.
Even if you’re “just hiring one person”, getting the entity name wrong can cause real problems when you need to enforce restraints, manage termination, or respond to a personal grievance.
Trust Record-Keeping And Trustee Duties (Trusts Act 2019)
This is where many business owners get caught out. Trust compliance isn’t just about tax - it’s also about meeting trustee duties and maintaining proper records under the Trusts Act 2019.
In plain English: even if you’re the trustee and the beneficiary, you still need to run the trust like a trust, not like a personal wallet.
What Records Should A Trust Keep?
Trust record-keeping is a core part of trustee compliance in New Zealand. The Trusts Act 2019 requires trustees to keep specified “core documents” (and to ensure those documents are retained), and your trust deed may require additional records depending on what the trust owns and does.
In a business context, good trust administration usually includes:
- The trust deed (and any deeds of variation/amendments)
- Details of trustees (appointments, retirements, removals)
- Details of beneficiaries (including any changes)
- Trustee decision records (minutes/resolutions showing key decisions)
- Financial records (bank statements, accounting records, asset registers)
- Records of distributions (how and when income/capital was allocated)
- Contracts and ownership documents (leases, loan agreements, share certificates, purchase agreements)
If the trust is part of a wider group (for example, it owns the shares in a trading company), you also want a clear paper trail showing how trustees made decisions about shareholdings, dividends, and funding.
Do Trustees Have To Provide Information To Beneficiaries?
Under the Trusts Act 2019, trustees have a presumption of making certain “basic trust information” available to beneficiaries, and they need to consider requests for further information. Whether information is provided in a particular case can depend on the circumstances (and trustees must weigh various factors).
From a business owner’s perspective, the key takeaway is this: if your trust records are messy or incomplete, it becomes much harder to respond appropriately to beneficiary questions or disputes.
How Long Do Trust Records Need To Be Kept?
The Trusts Act 2019 includes retention expectations for “core documents”. In general terms, trustees must keep core documents throughout the life of the trust, and ensure those documents are retained for at least 7 years after the trust ends.
Separate to trust law, tax rules can also require records to be kept for a period of time (often at least 7 years). In practice, you should assume you need to keep records for a meaningful period and in a way that can be produced if required (for example, for IRD queries, audits, disputes, or sale due diligence).
If you’re planning to sell your business one day, clean trust records can also make due diligence faster and less stressful - buyers and their advisors will often want to understand who owns what, and whether decisions were properly authorised.
Common Compliance Traps For Business-Using Trusts
Most small business owners don’t intentionally “get it wrong” with a trust - they’re just busy running the business. But these are the issues that tend to come up when a trust is used in the real world.
1. Mixing Trust Money With Personal Or Business Funds
If the trust is meant to be separate, it needs separate bank accounts and separate accounting. Blurring the lines can:
- Make it harder to prove what the trust owns
- Create issues with beneficiaries
- Complicate tax reporting
- Increase risk if there’s a dispute or insolvency event
2. Signing Contracts In The Wrong Name
This is a big one. If the trust is operating the business, contracts should generally be signed by the trustee(s) on behalf of the trust (in the correct legal name). If a company is operating the business, the company signs.
Getting this wrong can mean you personally become a party to the contract - or that the “contracting party” doesn’t actually exist in the way the contract describes.
For example, if the trust is collecting customer information online, your website terms and Privacy Policy should reflect the correct entity that is collecting and using that information.
3. Not Documenting Trustee Decisions
Trustee minutes and resolutions often feel like “admin for admin’s sake” - until you need them.
For business-owning trusts, decisions that should usually be documented include:
- Buying or selling significant assets
- Making loans to related entities (or receiving loans)
- Guaranteeing company debts
- Distributing income or capital
- Appointing or retiring trustees
Well-kept records aren’t just about compliance - they’re also about proving that trustees acted properly and considered their duties.
4. Using A Trust Without Aligning The Rest Of The Structure
A trust is usually only one piece of the puzzle. If you’re using a trust to hold shares in a company, for example, you also want the company’s internal rules and ownership arrangements to match your plan - often via a Company Constitution and, if there are multiple owners, a Shareholders Agreement.
Otherwise, you can end up in situations where the trust owns shares, but the rights attached to those shares (and the rules around transfers, dividends, and decision-making) don’t protect you the way you expect.
5. Forgetting About Personal Liability Risk
Even though trusts can be used for asset structuring, trustees can still face personal exposure depending on what happens and what documents have been signed (for example, personal guarantees, indemnities, or poorly drafted contracts).
This is why it’s so important to get advice that looks at the trust deed, your business model, your contracts, and your real-world operational habits - not just the idea of “having a trust”.
Key Takeaways
- New Zealand trust compliance for business owners usually includes trustee duties (Trusts Act 2019), tax/IRD obligations, and practical business compliance.
- If your trust is operating a business, an NZBN is often useful (and sometimes expected by suppliers and platforms), but you also need to be clear whether the trust or a company is the trading entity.
- Many trusts used in business will have a trust IRD number, and may need GST registration (for example, once turnover meets the threshold) and employer registrations depending on how the trust operates. This is general information only - get tailored tax advice.
- Trust record-keeping is a core trustee obligation: keep core documents (including the trust deed and trustee records), plus financial records, contracts, and written trustee decisions (minutes/resolutions) that support what the trust is doing.
- Common traps include mixing funds, signing contracts in the wrong entity name, failing to document decisions, and not aligning the trust with your company documents and ownership plan.
- Because trusts are highly context-dependent, it’s worth getting tailored legal advice so your trust structure actually protects your business (and doesn’t create messy disputes later).
If you’d like help setting up or reviewing a trust structure for your small business - including making sure your registrations, contracts, and record-keeping processes line up - you can reach us at 0800 002 184 or team@sprintlaw.co.nz for a free, no-obligations chat.
