The short answer
A sole trader is a person who runs a business in their own name. There is no separate company, no shareholders, no board. You make the decisions, you keep the profits, and you are personally responsible for the debts.
It is by far the most common way to work for yourself in New Zealand, and it is the default. If you started invoicing clients last week without setting anything up, you are already a sole trader.
The part that matters: unlimited liability
This is the trade-off for the simplicity, and it is worth reading twice.
Because there is no separate legal entity, there is no line between your business finances and your personal ones. If the business owes money it cannot pay (an unpaid supplier, a customer who successfully sues you, a lease you signed), the people you owe can pursue your personal assets. That can include your savings, your car, and in serious cases your house.
You are a sole trader painter. You damage a client's property and the repair bill is $40,000. If your public liability insurance does not cover it, that debt is yours personally, not “the business's”. A company structure would usually keep that claim inside the company.
This does not mean sole trading is reckless. It means two things are worth doing early: get appropriate insurance for your trade, and use written contracts or terms of trade so expectations are clear. Both cost far less than the risk they cover.
Who it suits
Sole trading works well when the risk is manageable, the money is going straight to you, and you want to keep admin light.
- Freelancers and consultants: designers, developers, writers, contractors, project managers.
- Trades and services: sparkies, plumbers, gardeners, cleaners, mobile mechanics, hairdressers.
- Creators and sellers: market stalls, online shops, photographers, makers.
- Side hustles: anything you are testing alongside a salaried job.
It is especially good for testing an idea. You can start trading this week, and if it does not work you simply stop, with no company to wind up.
What a sole trader is not
| Structure | How it differs |
|---|---|
| Company | A separate legal entity registered with the Companies Office. Limits your personal liability, costs money to set up and maintain, and files its own tax return. |
| Partnership | Two or more people trading together. Each partner is generally liable for the partnership's debts, including debts a partner ran up without you. |
| Contractor | Not a structure at all. It describes how you are engaged. Most contractors in New Zealand are sole traders. |
| Employee | You work under an employment agreement, your employer deducts PAYE, and you get holidays and sick leave. Calling someone a contractor does not make them one; the reality of the arrangement decides. |
When to reconsider
Sole trading is a starting point, not a life sentence. It is worth revisiting the structure when:
- Your work carries real financial or physical risk to others.
- You are signing large contracts, leases or supply agreements.
- Corporate or government clients say they prefer to engage companies.
- You want to bring in a business partner or outside investment.
- Profit is high enough that the tax difference outweighs the admin.
Our sole trader vs company comparison goes through the trade-offs properly.
Whatever structure you land on, the name is the same either way. Secure the domain for it now; it is the cheapest decision on this page and the only one that is hard to undo later. Why your domain comes first.