Sole Trader vs Limited Company in NZ: Which Should You Choose?
Most NZ founders face this decision early: go sole trader or form a limited company? The right answer depends on your risk tolerance, tax situation, and growth plans.
Most NZ founders face this decision early: go sole trader or form a limited company? The right answer depends on your risk tolerance, income level, and how seriously you want to signal your intent to customers and suppliers.
The key differences at a glance
| Factor | Sole Trader | Limited Company |
|---|---|---|
| Liability | Personal assets at risk | Capped at share value |
| Tax rate | Personal income tax (up to 39%) | 28% company rate |
| Setup cost | Free (just IRD registration) | NZ$115 (Companies Office) |
| Ongoing compliance | Simple | Annual return + financial statements |
| Credibility | Lower (some clients require a company) | Higher (searchable on Companies Register) |
When a sole trader structure makes sense
If you are testing an idea, earning under NZ$70,000, working solo with no employees, and your risk exposure is low (no physical premises, no expensive equipment), staying as a sole trader keeps things simple. A freelance writer, a market gardener selling at the local market, or a consultant doing short-term contracts may not need the overhead of a company structure yet.
When you should form a limited company
Form a company when:
- Your income exceeds NZ$70,000 - the 28% company rate beats your personal marginal rate
- You have employees or contractors
- You carry meaningful liability risk (building work, professional advice, product sales)
- You need to raise investment or take on a business partner
- Your customers or suppliers require it (many corporates and government agencies only contract with companies)
- You want the business to outlive you or be sold
The tax angle explained simply
As a sole trader earning NZ$120,000, you pay personal income tax on that entire amount - your effective rate climbs toward 33%. As a company, profits are taxed at 28%, and you only pay personal tax when you extract money as a salary or dividend. With careful structuring (salary up to the optimal threshold, then dividends), many owner-operators save NZ$5,000 to NZ$20,000 annually. A chartered accountant can model this for your specific situation in about 30 minutes.
The liability argument
As a sole trader, a lawsuit, an unpaid debt, or a failed contract can reach your personal savings, house, and car. A limited company creates a legal separation - your personal assets stay protected as long as you do not personally guarantee company debts and do not trade recklessly. This protection matters most if you are:
- Taking on staff (employment disputes)
- Dealing with physical products that could injure someone
- Working in a regulated profession (legal, medical, financial)
- Leasing commercial premises
What most people do wrong
Many NZ founders form a company too early with no accounting setup, and then spend years with messy books because they did not set up GST registration, Xero, and a business bank account at the same time. If you are forming a company, do all four things in week one: Companies Register, IRD registration (PAYE + GST if over NZ$60,000 threshold), a dedicated business bank account, and accounting software.
The bottom line
If you are serious about your business, earning above NZ$70,000, or carrying any meaningful risk, form the company. The NZ$115 setup fee is trivial compared to the tax savings and liability protection you gain. If you are just starting out and testing demand, a sole trader structure is fine for 6 to 12 months while you validate.
Not sure which structure fits your situation? A local chartered accountant can review your income, risk profile, and growth plans and give you a definitive answer. Connect with an accountant near you here.