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 run a small business in New Zealand, it’s normal to start out doing things “on a handshake”. Maybe it’s a long-time customer, a supplier you trust, or a contractor you’ve worked with before.
But as your business grows, relying on verbal agreements can quickly turn into a serious risk. When expectations aren’t written down, it becomes much harder to manage disputes, enforce payment, protect your intellectual property, or even prove what was agreed in the first place.
This is why businesses that use written contracts are usually in a much stronger position than businesses operating informally. A written contract isn’t just “paperwork” - it’s part of your legal foundation and a practical tool to help you run smoother, faster, and with fewer nasty surprises.
Below, we break down the key legal risks and disadvantages of working without a written contract in NZ, plus what you can do to get protected from day one.
Note: This article is general information only and isn’t legal advice. If you’d like advice for your specific situation, it’s best to speak with a lawyer.
Are Verbal Agreements Legally Binding In New Zealand?
Yes - in many cases, a verbal agreement can be legally binding in New Zealand.
But here’s the catch: even if an agreement exists, it may be difficult (or very expensive) to prove what the agreement actually was. That’s where many businesses get stuck.
New Zealand contract law generally recognises agreements where there is:
- Offer (one party proposes terms),
- Acceptance (the other party agrees),
- Consideration (something of value is exchanged), and
- Intention to create legal relations.
These principles largely come from the common law (judge-made law). New Zealand also has legislation that affects contracts in specific ways, including the Contract and Commercial Law Act 2017 (which consolidates several key contract-related statutes).
But even if you tick the boxes, a verbal arrangement can still leave you exposed because:
- details are often missing (scope, timelines, variations, ownership, termination),
- people remember conversations differently (especially under pressure), and
- you’ll often end up arguing about evidence instead of running your business.
So while verbal agreements might be “valid”, they’re rarely safe for a commercial relationship - particularly once money, deadlines, or reputation are on the line.
What Are The Biggest Legal Risks Of Operating Without A Written Contract?
When you don’t have a written contract, you’re not just missing a document - you’re missing clarity. And a lack of clarity is where disputes (and costs) tend to grow.
1. Payment Disputes And Cashflow Stress
One of the most common issues we see is a dispute about money. For example:
- When exactly is payment due?
- Is the price fixed, or an estimate?
- What happens if the customer delays providing information?
- Do you charge interest or recovery costs if it goes to debt collection?
Without written terms, you might still be able to chase payment - but it becomes much harder to do quickly and confidently.
Having clear Terms Of Trade (especially for product-based or repeat-service businesses) is often one of the simplest ways to reduce payment disputes, set expectations, and support your debt recovery process.
2. Scope Creep (Doing More Work For The Same Price)
Scope creep is what happens when a client keeps adding “just one more thing”, but nobody formally agrees on extra fees, timeframes, or deliverables.
Without a written agreement, it can be hard to draw a line and say:
- what you agreed to do,
- what you didn’t agree to do, and
- what counts as a paid variation.
This is particularly common in professional services, creative work, IT, marketing, trades, and consulting.
A well-drafted Service Agreement usually sets out scope, variations, acceptance criteria, and what happens when the client changes their mind mid-project.
3. Disputes About Quality, Rework, And “What Was Promised”
Even with the best intentions, misunderstandings happen. A customer might say, “You said it would include X.” You might say, “That was never part of the deal.”
In New Zealand, you also need to be mindful of your obligations under:
- Fair Trading Act 1986 (misleading or deceptive conduct and representations), and
- Consumer Guarantees Act 1993 (guarantees that goods/services are of acceptable quality, fit for purpose, and provided with reasonable care and skill, where it applies).
Written contracts won’t remove consumer law obligations, but they can reduce confusion about what you are (and aren’t) providing, and help you manage expectations around remedies, timelines, and support.
4. Weak Evidence If Things End Up In A Dispute
If a dispute escalates (for example, through negotiation, mediation, the Disputes Tribunal, or the courts), evidence matters.
With no written contract, you may be relying on:
- emails or DMs that only tell part of the story,
- an invoice that doesn’t explain the scope,
- your memory of a phone call, and
- the other party’s memory (which might suddenly change).
In practice, this can push you into a “he said / she said” situation - which can lead to settlements that are based more on risk and cost than on what’s fair.
What Can Go Wrong Without Written Contracts For Staff And Contractors?
For many small businesses, hiring is where the risks can become serious, fast. That’s because employment and contractor relationships have legal obligations that don’t disappear just because you didn’t write them down.
If You Employ Staff, You Need Written Terms
In New Zealand, employers must provide a written employment agreement and key terms to employees. This is not optional - it’s a core part of the employment relationship under the Employment Relations Act 2000.
Without a compliant agreement, you can face:
- disputes about hours, pay, and duties,
- risk around disciplinary processes and termination,
- uncertainty around IP ownership and confidentiality, and
- costly problems if the relationship breaks down.
A properly drafted Employment Contract also helps you align expectations early - which is often the difference between a smooth working relationship and an ongoing management headache.
On top of that, your payroll practices still need to comply with minimum entitlements (for example, leave under the Holidays Act 2003). If your arrangements are vague or inconsistent, the “messy middle” is where errors often happen.
If You Use Contractors, Misclassification Risk Goes Up
Many businesses engage contractors because it feels flexible - and sometimes it genuinely is the right option.
However, if your “contractor” looks and works like an employee in practice, you can end up facing a misclassification issue (for example, disputes about entitlements and protections). Courts and regulators generally look at the real nature of the relationship, not just the label the parties use.
A written Contractors Agreement won’t automatically fix a misclassification problem on its own, but it does help clarify the intended relationship and set practical terms like:
- scope and deliverables,
- invoicing and payment terms,
- who owns work product and IP,
- confidentiality, and
- termination and handover obligations.
Having these terms documented is also a practical way to protect your operations and reduce disputes when a contractor relationship ends (which, in most businesses, eventually happens).
What If You’re Dealing With Suppliers, Partners, Or Other Businesses?
When you’re dealing B2B (business-to-business), the risks of “informal agreements” can be even sharper, because parties often expect a more commercial approach - and the sums can be higher.
Supplier And Vendor Relationships
If you order stock, outsource services, or rely on a supplier to deliver key inputs, a missing contract can lead to:
- unexpected price changes,
- unclear delivery dates (and no remedy if they’re missed),
- no clarity on who is liable for damaged goods, and
- disputes about returns, warranties, or replacement.
This is where written terms (even if they’re relatively short) can save you a lot of time and stress.
Going Into Business With Someone (And Not Writing It Down)
It’s exciting to start something with a friend, family member, or industry contact - and that excitement is exactly why people skip the paperwork.
But if you’re sharing money, responsibilities, customers, or assets, not putting it in writing can create big legal and commercial disadvantages.
Without a clear Partnership Agreement (or another suitable structure and agreement), you can run into issues like:
- unclear profit splits and expense responsibilities,
- disputes about who owns what,
- decision-making gridlock, and
- no clean exit process if someone wants out.
Even if you’ve formed a company, it’s still common to need a Shareholders Agreement to cover key “what if” scenarios (like a shareholder leaving, deadlocks, new investment, or selling the business).
How A Lack Of Written Contracts Can Put Your Brand, IP, And Data At Risk
Contracts aren’t only about getting paid. They’re also about protecting what makes your business valuable - your know-how, your content, your customer relationships, and your systems.
Intellectual Property (IP) Ownership Can Become Messy
If someone creates something for your business (a logo, website copy, software, designs, training resources, photography, or marketing assets), you should never assume your business automatically owns it.
Without written terms that clearly deal with IP:
- the creator may retain ownership,
- you may only have a limited right to use the work, and
- you may not be able to modify, resell, or license it later.
This becomes a major problem when you want to scale, rebrand, franchise, bring on investors, or sell the business - because due diligence often asks, “Do you actually own your IP?”
Confidential Information Can Leak (And You Might Have Limited Remedies)
If you share sensitive information with a contractor, employee, supplier, or collaborator (like pricing, customer lists, strategies, or internal systems), you need clear confidentiality and use restrictions.
Without written confidentiality terms, it can be difficult to:
- prove the information was confidential,
- prove what the other party was allowed to do with it, or
- act quickly if they use it in a way that harms your business.
Privacy And Customer Data Risks
Many NZ businesses collect personal information - even if it’s “just” names, emails, delivery addresses, or booking details.
If you collect, store, or use customer data, you need to take the Privacy Act 2020 seriously. One of the most practical steps is being transparent about what you collect and why, and having appropriate documents in place.
For online and service businesses, having a clear Privacy Policy is a common starting point (and it’s often expected by customers and commercial partners).
How Do You Fix It? Practical Steps To Become A “Written Contract” Business
If you’ve been operating without written agreements, don’t stress - you’re not alone, and this is fixable. The key is to treat contracts as part of your systems, not an afterthought.
Step 1: Map Your “Risk Points”
Start by listing the relationships where misunderstandings would hurt you the most, such as:
- your top 5 customers (by revenue),
- any projects with high scope creep risk,
- any supplier your business can’t operate without,
- any contractor who has access to customers, money, or sensitive info, and
- any business partner or co-founder arrangement.
This helps you prioritise what to document first.
Step 2: Choose The Right Type Of Agreement (Not One “Generic Contract”)
A common mistake is trying to use one document for every situation. Different relationships need different terms.
For example:
- Customer work: a Service Agreement or customer-facing terms
- Repeat sales: Terms Of Trade
- Staff: a compliant Employment Contract
- Contractors: a Contractors Agreement
- Co-owners: a Shareholders Agreement or Partnership Agreement
Once the documents match the relationship, you’re not constantly reinventing the wheel - and you can operate with much more certainty.
Step 3: Make Signing Part Of Your Process
A contract only protects you if it’s used properly.
Some practical ways to make contracts “stick” in a busy small business include:
- sending your agreement as soon as a quote is accepted,
- not starting work until the agreement is signed (or at least clearly accepted in writing),
- keeping a single folder or system for signed contracts, and
- having a process for variations (so changes don’t happen only by phone call).
Step 4: Avoid DIY Templates For High-Risk Work
It can be tempting to download a free template online. The problem is that templates are usually:
- not tailored to NZ law,
- not aligned with how your business actually operates, and
- missing key clauses that matter in your specific industry (or worse, including clauses that create new risk).
If your contract is meant to protect payment, IP, liability, confidentiality, and termination rights, it’s worth getting it drafted or reviewed properly so it actually does its job.
Key Takeaways
- Verbal agreements can be legally binding in NZ, but they’re often hard to prove and easy to misunderstand, which makes them risky for day-to-day operations.
- Operating without a written contract increases the chance of payment disputes, scope creep, quality disagreements, and expensive “he said / she said” situations.
- If you employ staff, you generally need written employment terms, and unclear arrangements can create major compliance and dispute risks under NZ employment law.
- Contractor relationships should also be documented to reduce disputes and clarify scope, IP ownership, confidentiality, and exit/handover obligations (noting the true nature of the relationship still matters).
- Without written contracts, your business may be exposed on IP ownership, confidentiality, and privacy obligations - especially if you collect customer data.
- Using written contracts consistently is a practical way to reduce risk, improve cashflow certainty, and create a stronger legal foundation for growth.
If you’d like help putting the right contracts in place for your business (or reviewing what you’re currently using), you can reach us at 0800 002 184 or team@sprintlaw.co.nz for a free, no-obligations chat.
