Do I need to register before I start trading?

You can start trading as a sole trader under your own name without a formal registration, but you should still register with Inland Revenue for tax purposes. If you want a company or want to trade under a different business name, you must register before you use it.

Sole trader or company: which should I choose?

A company is a separate legal entity that limits your personal liability but carries more paperwork and ongoing cost. A sole trader is cheap and simple but you are personally responsible for the business debts. The right choice depends on your risk, income and plans, so an accountant is often worth consulting early.

When do I need to register for GST?

You register for GST once your business turnover is expected to pass the current registration threshold. Whether you must register also depends on factors like when you started and what you sell, so confirm the current rules with Inland Revenue rather than relying on memory.

Do I have to use an agent or lawyer to register?

For a simple sole trader, no, most people manage the basics themselves. A company adds steps but can still be filed directly through the official services. An agent or professional is mainly worth it when your structure is complex, involves owners or has special rules.

Starting and registering a business in New Zealand

Starting a business in New Zealand is less paperwork than people fear. The day to day work of selling and serving is the hard part; the registering is a sequence of straightforward steps once you know the order. This guide walks through the choices that matter and the registrations most small businesses need.

Decide the structure first

Your structure decides how you pay tax, how much paperwork you carry and how much personal liability you take on. For a small business there are three common options:

Sole trader. You and the business are the same legal person. Cheap and simple to run, and you report the business income on your personal tax return. You are personally responsible for the business debts.
Partnership. Two or more people run the business together and share the income and the work. The partnership is not separate from the partners on liability, so each partner is personally responsible for the debts.
Company. A company is a separate legal entity. It pays tax on its own income, can survive a change of owners, and limits your personal liability, but it carries far more ongoing paperwork and cost.

There is no single right answer. A company limits liability but costs more to maintain; a sole trader is cheap but exposes you personally. If you are unsure, an accountant working through your situation is money well spent this early.

Name it, then check it

You can trade under your own name as a sole trader without registering a business name. If you want to trade under a different name, or you are forming a company, the name needs to be available, and you should check before you commit:

Search existing names. Check company and business name registers so you do not clash with someone already using the name or one like it.
Avoid the obvious traps. Stay clear of names confusingly similar to an existing brand, and skip words that imply activities you are not licensed for.
A name is not protection. Registering a name does not give you a trademark. That is a separate step if the brand matters to you.

Keep the name short, spellable and clearly connected to what you do, because you will say and type it constantly.

Register with the right bodies

Most small businesses need a handful of registrations:

Companies Office. The New Zealand Companies Register handles companies and registered business names.
Inland Revenue. For income tax, for GST once your turnover is expected to pass the registration threshold, and for PAYE if you take on employees.
Local council. Some activities need a council license or permit, for example serving food or running accommodation.
Industry bodies. Agriculture, finance and several other fields have dedicated licensing.

You usually also receive an NZ Business Number as part of your company or business registration. Use the official business setup services rather than a third party that charges a premium to file the same forms for you.

What it honestly involves

For a sole trader doing straightforward work, registration is quick and most people manage the basics themselves. A company adds steps: reserving a name, filing incorporation documents and setting the company up for tax and, often, GST. Professional help becomes worth it when you have multiple owners, foreign income, or obligations like payroll that you do not yet understand.

Sort these before you start

A few practical things have nothing to do with forms, and they will save you a lot of pain later:

A separate bank account. Even a sole trader benefits from a business account, because it keeps your records and your tax far cleaner.
Separate contact details. A phone number and email you can keep apart from your personal ones, and use them for the business.
A rough plan for the first months. What you will sell, to whom, and how you will get paid.

None of these are legal requirements for everyone, but they stop small things from turning into a mess at tax time, and they make the business look real to your first customers and suppliers.

The point

Do the structure decision first, because it drives tax and liability. Check the name and reserve it before you spend on branding. Register with the right bodies in order and get the NZ Business Number that comes with it. Most of the real work starts after the paperwork, not before it.