Shareholder disputes can feel personal, messy and expensive - especially when you’re dealing with a business you’ve built from the ground up with someone you trusted.
The tricky part is that many disputes aren’t really about “the law” at first. They start with misaligned expectations (who does what, who gets paid what, who gets the final say), and then escalate when there isn’t a clear process for resolving disagreements.
This 2026 update reflects what we’re seeing right now across New Zealand businesses: more complex cap tables, more businesses raising money earlier, and more pressure on cashflow - all of which can turn small misunderstandings into major conflict if you’re not protected from day one.
Below, we’ll walk you through the common causes of shareholder disputes, what you can do to prevent them, and practical steps for resolving them when they do happen (while keeping your business running).
Why Do Shareholder Disputes Happen In The First Place?
Most shareholder disputes aren’t caused by one single “bad” decision. They tend to build up over time, particularly when there’s a gap between what people assumed would happen and what the company documents actually say (or don’t say).
Some of the most common causes we see include:
- Different expectations about roles: one shareholder thinks they’re an investor, another thinks they’re a co-founder, and a third thinks everyone should be hands-on.
- Money and remuneration issues: disputes about salaries, drawings, director fees, reimbursements, or whether profits should be reinvested or paid out.
- Decision-making and control: disagreements about who can make decisions day-to-day versus what needs shareholder approval.
- Deadlock: common in 50/50 companies where neither side can outvote the other.
- Performance concerns: one shareholder feels another isn’t pulling their weight (or is actively harming the business).
- Related party transactions: for example, a shareholder provides services to the company or leases property to it and others feel the terms aren’t fair.
- Exit and valuation disputes: someone wants out (or needs to be bought out), but there’s no agreed valuation method or timeframes.
In New Zealand, the legal framework sits across your company’s governing documents and the Companies Act 1993. But in practice, most disputes are either prevented or intensified by what you agreed to (or failed to agree to) at the beginning.
What Are The Early Warning Signs Of A Shareholder Dispute?
Shareholder disputes rarely come out of nowhere. If you can spot the warning signs early, you’ve got a much better chance of resolving things before they become formal (and before lawyers start sending long letters back and forth).
Common warning signs include:
- Board meetings stop happening (or happen without proper minutes and clear decisions).
- One shareholder starts withholding information - financials, bank access, customer data, supplier contracts, or key logins.
- Conversations shift from business to personal (resentment, blame, threats, “I’m done”).
- Unilateral decisions are being made without following the constitution or shareholder approval requirements.
- Cashflow stress becomes a proxy fight (one wants to cut costs, another wants to spend to grow).
- Competing interests appear - for example, a shareholder starts a side business or takes opportunities that arguably belong to the company.
If you’re already seeing some of these signs, it’s usually worth getting advice early. Often, a quick review of your documents (and a practical plan for how to communicate and document decisions) can stop the dispute from escalating.
How Can You Prevent Shareholder Disputes (Before They Start)?
The best time to prevent a shareholder dispute is when everyone still likes each other.
That might sound a bit blunt, but it’s true: once trust breaks down, it becomes much harder to negotiate sensible protections. Preventing disputes is mostly about getting your legal foundations right and setting expectations clearly from day one.
1) Put A Strong Shareholders Agreement In Place
A Shareholders Agreement is one of the most effective tools for preventing shareholder disputes because it deals with the “what if” scenarios that founders often avoid talking about at the start.
Depending on your business, it can cover:
- how decisions are made (and what decisions require a special majority or unanimous approval)
- what happens if a shareholder wants to leave
- how share transfers work and whether other shareholders have first rights to buy
- restraint clauses (to reduce the risk of a shareholder leaving and taking clients)
- deadlock procedures (especially for 50/50 ownership)
- dispute resolution steps (for example: negotiation → mediation → escalation options)
- valuation mechanisms for buyouts
Without these kinds of clauses, your “exit” options can be limited, and disagreements about control and value can drag on.
2) Make Sure Your Company Constitution Actually Matches How You Operate
A constitution sets out rules for running the company, and it needs to align with what the shareholders and directors actually do in practice.
If your constitution is missing, outdated, or doesn’t reflect the reality of the business, it can create confusion about:
- director appointment and removal processes
- shareholder voting thresholds
- share transfer restrictions
- meeting requirements and notice rules
It’s usually worth having your Company Constitution reviewed alongside your shareholders agreement so the documents work together (instead of accidentally contradicting each other).
3) Get Clear On Director Obligations (And Conflicts Of Interest)
Some disputes are really “shareholder disputes” on the surface, but the legal issue underneath is about how directors are acting (or not acting).
In New Zealand, directors have duties under the Companies Act 1993. In plain terms, directors must act in good faith and in the best interests of the company, and they need to manage conflicts properly.
This is where misunderstandings commonly happen - especially in small businesses where shareholders and directors are the same people and decisions are informal.
To keep things practical, it helps to agree on:
- what decisions need board approval versus shareholder approval
- how conflicts are disclosed and recorded
- what happens if a director is also a supplier, landlord, contractor, or employee of the company
If you want a simple way to understand the “loyalty” side of these obligations, fiduciary duty is a useful concept to get your head around (even if you never use that exact phrase in day-to-day conversations).
4) Document Key Decisions As You Go (Not Just When There’s A Problem)
One of the easiest ways to reduce dispute risk is to make sure decisions aren’t trapped in people’s memories.
Even in a small company, it’s worth building habits like:
- regular board meetings (even short monthly ones)
- basic written minutes capturing decisions and approvals
- clear approval thresholds for spending and hiring
- a paper trail for major transactions (especially anything involving shareholders)
This isn’t about being “corporate” - it’s about reducing the risk that someone later says “I never agreed to that” (or “you said something different”).
How Do You Resolve A Shareholder Dispute In New Zealand?
If the dispute is already happening, you generally want to do two things at the same time:
- protect the business (cashflow, customers, staff, IP, bank accounts), and
- create a clear pathway to resolution (so it doesn’t drag on indefinitely).
Here’s a practical approach we often work through with clients.
Step 1: Identify The Real Issue (Not Just The Arguments)
People often argue about the symptoms (for example, “you’re excluding me” or “you’re blocking every decision”). But the real issue might be:
- control (who gets the final say)
- money (salary vs dividends vs reinvestment)
- trust (concerns about dishonesty or misuse of funds)
- exit (one person wants to leave and can’t)
Once you identify the underlying driver, it becomes much easier to choose the right remedy - whether that’s a restructure, buyout, or governance reset.
Step 2: Check The Documents First (Shareholders Agreement, Constitution, And Any Side Deals)
Before anyone escalates, you’ll usually want to gather and review:
- the shareholders agreement (if you have one)
- the constitution (if adopted)
- share registers and any share issue documentation
- director resolutions and shareholder resolutions
- employment or contractor arrangements for shareholder-workers
- any informal agreements (emails, messages, investor updates)
This step matters because many disputes are resolved simply by applying the agreed process - for example, a right of first refusal, a forced sale clause, or a set valuation mechanism.
Step 3: Stabilise Operations (So The Business Doesn’t Become Collateral Damage)
Even when you’re in conflict, the company still has obligations - to customers, suppliers, employees, and regulators.
Practical stabilisation measures might include:
- agreeing who can authorise payments (and setting temporary limits)
- confirming who controls company IP, domains, and key accounts
- pausing major spending decisions until governance is clarified
- ensuring everyone is complying with their director duties (especially around conflicts and use of company property)
If there are concerns about misconduct, you may need urgent advice. Allegations involving improper conduct can also overlap with breach of directors’ duties, which can raise the stakes quickly.
Most shareholder disputes settle without a full hearing - but the sooner you use a structured process, the better your chances of preserving value (and your sanity).
Common stages include:
- Direct negotiation: a meeting with a clear agenda and written proposals (not just venting).
- Mediation: a neutral mediator helps both sides reach a commercial solution. This is often faster and cheaper than court, and it can be less damaging to relationships.
- Lawyer-to-lawyer negotiation: when communication breaks down, lawyers can help keep discussions focused on outcomes and legal rights.
- Formal dispute routes: depending on the situation, this might involve proceedings in the High Court or other formal steps.
If you do reach agreement, it’s usually documented so everyone knows where they stand. Often this is done through a Deed of Settlement (which can set out payment terms, releases, confidentiality, and what happens next).
Step 5: If Someone Is Exiting, Do The Transfer Properly
A lot of disputes “resolve” when one shareholder exits - but the admin and legal steps still matter. If you don’t complete the transfer correctly, the dispute can resurface later (for example, arguments about whether someone is still a shareholder, still entitled to dividends, or still bound by restraints).
Where an exit is agreed, you’ll typically need to consider:
- the share sale terms (price, timing, conditions, warranties)
- updating the share register
- director and shareholder resolutions
- handover of company property and access (devices, accounts, passwords)
- restraints and confidentiality obligations
Even for straightforward changes, the mechanics matter - especially if the business later raises funds or is sold. If you’re unsure what’s required, the steps around Transfer Shares are a good place to start.
What If You’re Stuck In Deadlock Or A “Minority vs Majority” Situation?
Some shareholder disputes have a specific shape, and the “best” solution depends on what’s driving the conflict.
Deadlock (Common In 50/50 Companies)
Deadlock happens when:
- shareholding is split evenly (or voting rights effectively are), and
- the parties can’t reach agreement on major decisions.
This can be devastating because it can freeze the business at exactly the moment you need to act quickly (hiring, spending, pivoting, dealing with a key customer issue).
If your documents include a deadlock clause, it may set out a pathway such as:
- escalation to a “chairperson” with a casting vote
- mandatory mediation
- a buy-sell mechanism (sometimes called a “shotgun” clause)
If you don’t have a deadlock clause, you still have options, but they’re usually less predictable - and often more expensive. This is one of the biggest reasons we encourage founders to put the right documents in place early.
Minority Shareholder Concerns
Minority shareholders often feel vulnerable because they can be outvoted on paper - even if they’ve contributed significantly to the company.
Common triggers include:
- being excluded from management without fair compensation
- decisions that dilute shareholding (new share issues)
- diverting company opportunities to related parties
- lack of transparency about financials or transactions
In these situations, the details matter. Your constitution and shareholders agreement may provide protections such as:
- reserved matters requiring special majority approval
- information rights
- pre-emptive rights on share issues
- rights around director appointment
If you’re worried you’re being treated unfairly (or you’re a majority shareholder trying to manage a relationship breakdown properly), it’s worth getting tailored advice early. The goal is usually to land on a commercial solution that keeps the business stable - whether that’s a restructure, a buyout, or a reset of governance rules.
It’s normal in small businesses for shareholders to also provide services to the company - for example, one shareholder might own the building, another might run marketing, and another might supply products.
The risk isn’t the relationship itself. The risk is when:
- terms aren’t documented clearly
- approvals aren’t properly recorded
- someone later claims the arrangement was unfair or unauthorised
If you’re entering related party arrangements, a bit of paperwork up front can prevent a lot of pain later.
Key Takeaways
- Shareholder disputes usually start as misaligned expectations and escalate when there’s no clear process for decision-making, exits, or resolving disagreements.
- The best prevention is strong legal foundations: a tailored shareholders agreement, a constitution that matches how your business actually operates, and clear governance habits (like proper minutes and approval processes).
- If a dispute is already happening, focus on protecting the business while creating a structured pathway to resolution - often negotiation and mediation first, with formal options if needed.
- Director duties and conflicts of interest often sit underneath shareholder disputes, so it’s important to stabilise governance and document decisions properly.
- Deadlock and minority/majority disputes need a strategy that fits your documents and your commercial reality - early advice can prevent the dispute from becoming entrenched.
- If a shareholder is exiting, make sure the share transfer is done correctly (including registers, resolutions, and handover), or the dispute can easily come back later.
If you’d like help preventing or resolving a shareholder dispute - whether you need governance documents in place, advice on your options, or support negotiating an exit - you can reach us at 0800 002 184 or team@sprintlaw.co.nz for a free, no-obligations chat.
