Which Business Structure Should I Use?

Starting a business is exciting, but one of the most important early decisions you’ll make is how to structure it. Many new owners ask, “which business structure should I use?” Your choice affects how much tax you pay, your personal liability and how profits are shared.

In New Zealand, the most common business structures are sole trader, company, partnership and trust. Let’s explore how each one works, with practical examples for small business owners.

Sole Trader: The Simplest Option

A sole trader runs the business in their own name and is personally responsible for everything.

• Pros: Easy to set up, low cost, minimal IRD compliance.
• Cons: You’re personally liable for debts and all profits are taxed at your individual income tax rate.

Example: A self-employed plumber just starting out may begin as a sole trader. They invoice under their own name and manage everything through one bank account.

Company: Limited Liability and Growth

A company is a separate legal entity registered through the NZ Companies Office. It can enter into contracts, borrow money and be liable for debts — not you personally (except in some cases).

• Pros: Limited liability, flat 28% corporate tax rate, easier to raise capital and hire staff.
• Cons: More compliance, annual returns and record-keeping.

Example: A café opening a second location may register as a company to separate personal and business finances, protect the owners and make future growth easier.

Partnership: Sharing the Load

A partnership is when two or more people run a business together, splitting profits, losses and responsibilities. Each partner pays tax on their share of income.

• Pros: Simple to set up, allows partners to share skills, capital and workload.
• Cons: Each partner is personally liable for all debts, including those caused by the other partners.

Example: Two physios might form a partnership to run a clinic together, pooling resources and splitting profits equally.

Trust: Protecting Assets and Planning Ahead

A trust can own a business and hold assets on behalf of beneficiaries, often family members. It’s commonly used for asset protection and succession planning.

• Pros: Potential tax advantages, protection of assets, easier to pass wealth to the next generation.
• Cons: Higher cost, more complex legal and accounting requirements.

Example: A family with several rental properties may use a trust to hold them, protecting the assets from personal liabilities while planning for the future.

Which Structure Is Best?

So, which business structure should I use? There’s no one-size-fits-all answer. The right structure depends on:

• The size and stage of your business.
• Whether you want to separate personal and business liability.
• Your tax position and long-term goals.
• Plans for growth, investment or succession.

Changing your structure later can be costly and complicated, so it’s worth getting advice at the start.

FAQs About Business Structures in NZ

What is the most common business structure in New Zealand?
Most small businesses start as sole traders because it’s the simplest and cheapest option.

Can I change my business structure later?
Yes, but it can involve extra cost, legal paperwork and tax considerations, so plan ahead.

Do I need a lawyer or accountant to set up a company in NZ?
Not legally, but professional advice helps you get the structure right and avoid costly mistakes.

Final Thoughts

Choosing the right structure is one of the most important decisions you’ll make as a business owner. Asking “which business structure should I use” early on helps you think about tax obligations, liability and growth potential. Not sure which structure suits you best?

Your local SBA accountant can explain the pros and cons for your situation and help set up your business on the right foundation from day one.