Ben is a law graduate and admitted lawyer in Queensland. Ben has worked in legal, marketing and tech in London, Shanghai and Brisbane and now writes about business topics for Sprintlaw.
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If you’re setting up (or already running) a company in New Zealand, you’ve probably heard the term “company constitution” thrown around - usually right when you’re trying to get your head around directors, shareholders, shares, and all the other company admin.
A constitution isn’t mandatory for every company, but it can be a powerful way to set clear rules for how your company will run and what happens when something changes (like a new investor coming in, a shareholder leaving, or a dispute between founders).
This guide is updated to reflect the current way company owners are using constitutions in practice - especially as businesses increasingly raise capital, issue shares, and operate online where governance and clear decision-making processes matter from day one.
What Is A Company Constitution In New Zealand?
A company constitution is a written set of rules for how your company is governed.
In plain terms, it’s a document that can:
- set out how decisions are made by directors and shareholders
- create rules around issuing and transferring shares
- explain what happens if shareholders disagree or want to exit
- add governance rules that sit alongside (or modify) the default rules under the Companies Act
Think of it like your company’s “rulebook”. It’s not the same as a business plan, and it’s not just an internal policy - it’s a legal document that can affect shareholders’ rights and director powers.
Most commonly, a constitution is relevant when you:
- have (or expect to have) more than one shareholder
- plan to raise money from investors
- want clearer rules than the default ones under NZ company law
- need to protect control of the business (for example, restricting share transfers)
It’s also worth knowing that a constitution doesn’t replace other documents that may still be essential depending on your setup - for example, a Company Constitution often works best alongside a shareholders agreement where there are multiple owners.
How Does A Constitution Work Legally?
When a constitution is adopted correctly, it generally creates enforceable rights and obligations between:
- the company
- the shareholders
- the directors (in certain ways, depending on what’s included)
That means the rules in the constitution aren’t just “nice to have” - they can matter in real disputes or negotiations.
Do I Need A Company Constitution?
Not always. In New Zealand, you can register and run a company without a constitution.
If you don’t have a constitution, your company will rely on the default rules in the Companies Act 1993. Those rules cover many standard governance issues - but they’re designed to work as a general framework for all companies, not specifically for your business.
You’re more likely to need (or strongly benefit from) a constitution if:
- You have multiple shareholders and you want clear rules around voting, control, and ownership changes.
- You’re issuing shares (for example, to a co-founder, employee, or investor) and want to set conditions around share rights.
- You want to restrict share transfers so shareholders can’t sell to a random third party without approvals.
- You’re planning for growth and want to make future fundraising or ownership changes smoother.
On the other hand, if you’re a sole founder who is the only director and shareholder, you might not need a constitution immediately. But it’s still worth thinking ahead - especially if you expect to bring on a co-founder, investor, or key employee with equity later.
A Common Scenario
Let’s say you start a company as the sole shareholder, and six months later an investor offers capital for shares. If you don’t already have governance documents in place, you may find yourself rushing to put rules together during negotiations - when the pressure is on and the stakes are higher.
Putting the right foundations in place early gives you more control and usually prevents expensive clean-up work later.
What’s The Difference Between A Company Constitution And A Shareholders Agreement?
This is one of the most common questions we get, and it’s a good one - because the documents can overlap, but they’re not the same thing.
A Company Constitution sets governance rules for the company and is generally designed to be part of the company’s official governance framework.
A Shareholders Agreement is a contract between the shareholders (and often also signed by the company) that usually goes deeper into relationship and “what if” scenarios, such as:
- what happens if a shareholder wants to exit
- deadlock situations (where shareholders can’t agree)
- drag-along and tag-along rights (commonly used in sale situations)
- restrictions on competing with the business
- confidentiality and IP ownership expectations between founders
In practice, many companies use both. The constitution sets the broad governance mechanics, while the shareholders agreement manages the commercial relationship between the owners.
If you’re deciding what you need, it usually comes down to:
- how many owners you have
- how complex your ownership structure is
- whether you expect investment or share transfers
- how important it is to lock in expectations between founders
What Usually Goes In A Company Constitution?
A well-drafted constitution should match how your company actually operates (and how you want it to operate as it grows). While every company is different, here are common clauses and themes you’ll often see.
1. Share-Related Rules
This is often the biggest reason businesses adopt a constitution.
A constitution can set rules around:
- Share issues: who can approve issuing new shares, and whether existing shareholders get the first chance to buy.
- Share classes: whether different shares have different voting or dividend rights.
- Share transfers: what approvals are needed before shares can be sold or transferred.
- Pre-emptive rights: whether existing shareholders must be offered shares first before a third party can buy in.
This matters because ownership is power - and unclear share rules can cause major headaches during fundraising, exits, or disputes.
If you’re actively issuing shares, you may also be dealing with documentation like a share issue process and related resolutions, so it’s worth ensuring your governance documents all line up.
2. Director Appointment And Decision-Making
Your constitution can set out how directors are appointed, removed, and how board decisions are made.
Depending on your setup, you might include:
- minimum and maximum number of directors
- rules for appointing a director (including shareholder voting thresholds)
- whether certain shareholders have the right to appoint a director
- meeting rules and voting rules (including casting votes)
This becomes especially important when ownership is split, or when investors come in and want some governance oversight.
3. Shareholder Meetings And Voting Thresholds
Not all decisions should require the same level of approval. A constitution can specify when you need:
- an ordinary resolution (simple majority)
- a special resolution (typically a higher threshold)
- unanimous consent
For example, you might want a higher threshold for “big ticket” decisions like changing the share structure, selling major company assets, or winding up the company.
4. Distributions, Dividends, And Financial Rules
Some constitutions include additional detail about dividends and distributions, including how and when they can be declared (and by whom).
Even if your business isn’t paying dividends now, it can be helpful to have rules ready for when profitability grows - especially if some shareholders are passive investors who expect returns.
5. Administrative And Practical Provisions
Constitutions can also cover day-to-day governance mechanics such as:
- how notices are given
- how meetings can be held (including remote meetings where permitted)
- signing rules and execution of documents
- record-keeping and company registers
These details can sound “boring”, but they can prevent arguments later about whether a decision was validly made.
How Do I Adopt Or Change A Company Constitution?
This is the part where it really pays to slow down and do it properly.
A constitution needs to be correctly adopted to be effective. Generally, this is done by shareholder resolution (and the exact requirements can depend on whether the constitution is being adopted on incorporation or after the company is already registered).
Once adopted, you typically need to ensure:
- the constitution is properly recorded and stored in company records
- your directors and shareholders actually understand the rules (and follow them)
- any future changes are made in accordance with the constitution and the Companies Act
Changing a constitution later can be straightforward, but it can also become sensitive if shareholders disagree - particularly where changes affect rights attached to shares or shift control.
It’s common to pair these steps with other governance documents, like a Directors Resolution process (and proper records of shareholder resolutions) so your company’s decisions are clean and defensible.
Can I Just Use A Template Constitution?
It’s tempting - especially when you’re trying to keep costs down early on.
But a constitution isn’t just a formality. If it’s drafted too broadly, too narrowly, or doesn’t match your share structure and plans, it can create problems like:
- accidentally giving away control when issuing shares
- making investor negotiations harder (because the rules don’t fit common investment terms)
- disputes between founders about who can make what decisions
- share transfer rules that don’t reflect what you intended
In other words: generic documents can be worse than having no document at all, because they can give you a false sense of security.
How A Constitution Fits Into Your Wider Legal Setup
A constitution is part of a bigger picture: getting your legal foundations right so you can grow confidently.
Depending on how your company operates, you may also need to think about:
Contracts And Commercial Terms
If you sell products or services, strong terms with customers and suppliers help avoid payment disputes and scope creep. Governance documents won’t help you much if your customer contracts are weak.
If you’re collecting customer information online (even just via a website enquiry form), you should also consider having a Privacy Policy in place to help meet your obligations under the Privacy Act 2020.
Employment And Hiring
Once you start hiring, you’ll want your internal governance to be matched with good employment documentation. Even early hires can create risk if expectations aren’t clear.
It’s common for growing companies to put proper Employment Contract documentation in place early, so you’re protected from day one and your team understands what’s expected.
Equity, Incentives, And Founder Relationships
If you’re planning to bring in a co-founder, give equity to early contributors, or set up incentives for key staff, it’s worth thinking through:
- how shares will be issued
- whether there will be vesting conditions
- what happens if someone leaves
- how decision-making works if ownership is split
This is where company governance can quickly become complicated - but also where getting it right early can massively reduce future disputes.
Key Takeaways
- A company constitution is a legal rulebook that helps control how your New Zealand company is governed, including decision-making, share issues, and share transfers.
- You don’t always need a constitution, but it’s strongly recommended if you have multiple shareholders, plan to raise investment, or want clearer rules than the default Companies Act settings.
- A constitution is different from a shareholders agreement - many businesses use both, especially where there are co-founders, investors, or plans to issue more shares.
- Common constitution clauses cover share transfers, issuing shares, director appointment and voting, shareholder resolutions, and practical governance processes.
- Adopting or changing a constitution needs to be done properly, and using a generic template can create real risks if it doesn’t match your share structure and growth plans.
- A constitution works best as part of your wider legal foundation, alongside key documents like employment contracts, privacy policies, and well-structured company records.
If you’d like help adopting or updating a company constitution (or working out what governance documents your company actually needs), you can reach us at 0800 002 184 or team@sprintlaw.co.nz for a free, no-obligations chat.
