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.
Choosing the right business structure is one of those “set it up properly from day one” decisions that can save you a lot of stress later.
For many Kiwi small business owners, becoming a sole trader is the quickest way to get started. It’s simple, flexible, and (often) cheaper upfront than setting up a company.
But “easy to start” doesn’t always mean “best long-term fit”. The real question is whether the advantages of running as a sole trader line up with your goals, your risks, and how you’ll run your business day-to-day.
Below, we break down the advantages of being a sole trader, the key downsides to watch for, and the legal and practical steps that help you run a sole trader business confidently in New Zealand.
What Does “Sole Trader” Mean In New Zealand?
A sole trader is a person who runs a business on their own account. There’s no separate legal entity (unlike a company), which means you and the business are legally the same.
This structure is popular for:
- trades and construction contractors
- consultants, freelancers, and service providers
- online sellers and eCommerce store owners
- beauty, wellness, and creative businesses
- small hospitality or market businesses (depending on risk and scale)
Practically, you can trade under:
- your personal name (e.g. “Jordan Lee”), or
- a trading name (e.g. “JL Electrical”).
Even if you use a trading name, you’re still operating as a sole trader (unless you’ve formed a company or another entity). If you’re weighing up structures, you might also find Operating As A Sole Trader a helpful starting point.
Because there’s no separate legal “wrapper”, a sole trader structure tends to be straightforward - but it also means you personally carry the legal risk.
Sole Trader Advantages: Why This Structure Works For Many Small Businesses
There’s a reason “sole trader” is often the default option for first-time founders. The main advantages are usually about simplicity, cost, and control.
1. Easy And Low-Cost To Set Up
One of the big advantages of operating as a sole trader is that there’s generally no formal “entity setup” process like there is with a company.
For many businesses, the setup basics look like:
- deciding your business name and branding
- setting up a business bank account (strongly recommended)
- getting an NZBN (optional, but often useful for credibility and invoicing)
- registering for GST if required (or if it makes sense for your business)
- tracking income and expenses for tax purposes
If you’re trying to budget for launch costs, the question of registration comes up a lot - Cost To Register A Business NZ is a good reference point for the types of costs that can apply depending on what you’re registering (like a company, trade mark, domain name, and so on).
2. Full Control Over Business Decisions
When you’re a sole trader, there’s no board, no shareholders, and no co-founders you need to consult (unless you choose to).
That means you can:
- change your pricing, suppliers, and offerings quickly
- pivot your business model without formal approvals
- make fast decisions when opportunities pop up
For service businesses especially, this flexibility can be a major competitive advantage.
3. Straightforward Tax Treatment (In Many Cases)
As a sole trader, business income is generally treated as your personal income. In many cases, you’ll declare that business income in your personal tax return and meet any other Inland Revenue requirements that apply to you.
This can be simpler than company tax compliance, particularly when you’re in the early stages and your income and expenses are relatively straightforward. But tax outcomes can vary depending on your circumstances (including your income level, expenses, GST status, and whether provisional tax applies).
This article is general information only and isn’t tax or accounting advice. You should get tailored advice from an accountant on what you can claim, what records you need to keep, and how to plan for things like GST and provisional tax if they apply to you.
4. Fewer Ongoing Administration Requirements Than A Company
Companies have ongoing obligations under the Companies Act 1993 (for example, maintaining company records and meeting director duties). Sole traders generally don’t have those same formal corporate compliance steps.
So if your priority is to keep admin light while you test your idea and start selling, being a sole trader may feel more manageable.
5. Easier To Wind Up Or Change Direction
Another practical advantage of being a sole trader is that it’s usually easier to stop trading, pause the business, or change your offering without going through a formal deregistration process (like you would with a company).
This is particularly useful if you’re:
- testing a new side venture
- running a seasonal business
- building a business that may later be sold or expanded into a company
Disadvantages Of Being A Sole Trader: The Risks Business Owners Need To Understand
The benefits of sole trader status are real - but so are the downsides. The biggest risks tend to show up when something goes wrong (like a dispute, a debt, or an unexpected claim).
1. You’re Personally Liable For Business Debts And Claims
This is the key trade-off: because you and the business are the same legal person, your personal assets can be at risk.
For example, if:
- a customer alleges your work caused loss or damage
- you sign a lease or supplier agreement and can’t pay
- you get sued for breach of contract
- there’s a health and safety incident
…you may be personally responsible.
Insurance can help (for example public liability, professional indemnity, and product liability depending on what you do), but it won’t fix poor contracting or prevent disputes. This is why getting your customer terms and supplier arrangements right early matters so much.
2. It Can Be Harder To Bring In Investors Or Co-Owners
Sole trader structures don’t have shares. That means if you want to:
- bring in an investor
- split ownership with a co-founder
- build a structure for long-term growth
…you may need to move into a company (or another structure) to do that cleanly.
It’s not impossible to collaborate as a sole trader, but ownership and profit-sharing arrangements can get messy if you don’t document them properly.
3. Perception And Credibility (Depends On Your Industry)
In many industries, being a sole trader is completely normal. But in some B2B contexts, larger clients may prefer contracting with a company, especially for higher-value or higher-risk projects.
This is less about what’s “legally better” and more about how your customers assess risk and reliability.
4. You May Need Stronger Systems To Separate Business And Personal Money
Because the structure is informal, it can be tempting to blur personal and business spending. That’s a fast way to create headaches at tax time (and it can make it harder to prove what happened if a dispute comes up).
If you’re operating as a sole trader, set up:
- a separate business bank account
- clear invoicing practices
- consistent record-keeping (ideally using accounting software)
It’s not a legal requirement in every case - it’s just one of those habits that makes your business easier to run and easier to protect.
What Legal And Compliance Obligations Apply To Sole Traders?
A common misconception is that a sole trader business is “not really a business” from a legal perspective.
In reality, once you start trading, you’re generally subject to many of the same laws as any other business - you just have a simpler structure.
Consumer Law Still Applies
If you sell goods or services to consumers, you’ll usually need to comply with:
- Fair Trading Act 1986 (your advertising and claims can’t be misleading)
- Consumer Guarantees Act 1993 (goods and services must meet certain guarantees when sold to consumers)
This affects things like refunds, returns, what you say on your website or Instagram, and how you handle complaints.
You Still Need The Right Contracts In Place
Many sole traders run into avoidable disputes because they start work based on a casual text message, a verbal agreement, or a vague quote.
Even at a small scale, it’s worth having clear documents for:
- customer terms (scope, fees, timelines, payment terms, late fees, limits of liability)
- supplier terms (delivery, quality expectations, dispute process)
- website terms if you sell online
For example, having clear Terms Of Trade can reduce payment disputes and make it easier to enforce your rights if a customer refuses to pay.
Privacy Obligations If You Collect Customer Information
If you collect personal information (names, emails, addresses, booking details, health information, or even IP addresses through your website), you’ll likely have obligations under the Privacy Act 2020.
In practical terms, that often means being transparent about what you collect and why - especially online. If you run a website, an appropriate Privacy Policy is one of the simplest ways to show customers you’re handling their data responsibly.
Employment And Contractor Rules When You Start Hiring
A lot of sole traders start solo, then grow quickly - and hiring becomes the next big step.
If you hire an employee, you’ll want a proper Employment Contract in place that matches the role (and reflects the legal minimums around leave, pay, and entitlements).
If you bring in independent contractors, you’ll also want a clear Contractor Agreement so everyone understands the scope, payment, IP ownership, confidentiality, and what happens if the relationship ends.
Getting this distinction right matters - treating someone like a contractor when they’re legally an employee can create real legal and tax exposure.
Health And Safety Duties Can Still Be Significant
Under the Health and Safety at Work Act 2015, many sole traders will be a “PCBU” (a person conducting a business or undertaking). That can mean you have duties to take reasonably practicable steps to ensure health and safety, particularly if you:
- have workers (including contractors in many cases)
- work at client sites
- operate in higher-risk industries (like construction, manufacturing, or certain events)
Even if it’s just you, you’ll still want to think about safety processes and insurance. It’s part of building a business that can grow without nasty surprises.
When Does It Make Sense To Move From Sole Trader To A Company (Or Another Structure)?
The advantages of a sole trader structure tend to shine in the early stage: low cost, low admin, easy to start.
But there are some clear signs you may want to consider changing your structure as the business grows.
You’re Taking On More Risk Or Bigger Contracts
If you’re signing larger contracts, dealing with higher-value client projects, hiring staff, or taking on debt (like a business loan or equipment finance), the personal liability issue becomes more serious.
At that point, a company structure may help ring-fence risk (though it’s not a magic shield - directors can still be personally liable in certain scenarios, and personal guarantees are common in leases and finance).
You Want A Clear Ownership Split With Someone Else
If you’re bringing in a co-founder or investor, it’s usually much easier to do that through a company structure where ownership is represented through shares and documented properly.
You Want To Build A Business That’s Easier To Sell
Selling a sole trader business is possible, but it often involves selling assets, goodwill, and contracts (rather than selling “the business entity” as a separate thing). Depending on your industry, a company structure can make a sale process cleaner - especially if you have staff, supplier contracts, or valuable IP.
You’re Ready For A More “Formal” Structure For Growth
Some founders simply reach a point where they want clearer separation between personal and business affairs, and more structure around decision-making.
If you’re considering a change, How To Change Your Business Structure is a good overview of what switching can involve (and why it’s worth getting advice before you do it).
Just keep in mind: changing structure can have flow-on effects for tax, contracts, employment arrangements, licences, and even branding. It’s one of those moments where tailored advice is really worth it.
Key Takeaways
- The main advantages of being a sole trader are simplicity, low setup cost, full control, and (often) fewer ongoing administration requirements than a company.
- The biggest downside is personal liability - as a sole trader, you and the business are the same legal person, which can put personal assets at risk if something goes wrong.
- Even as a sole trader, you’re still generally subject to key business laws like the Fair Trading Act 1986, Consumer Guarantees Act 1993, Privacy Act 2020, and health and safety obligations.
- Strong customer terms, clear contractor or employment arrangements, and sensible record-keeping help protect your business from day one.
- If you’re growing quickly, taking on more risk, bringing on co-owners, or planning to sell, it may be time to consider whether a company structure is a better fit.
- Choosing (or changing) your business structure is a commercial and legal decision - getting tailored advice early can prevent expensive rework later.
If you’d like help choosing the right structure for your business, or putting the right contracts and policies in place, you can reach us at 0800 002 184 or team@sprintlaw.co.nz for a free, no-obligations chat.


