How to Become a Contractor in NZ: Setup, Tax and What to Charge

Becoming a contractor can give you more control over your work, clients and pricing. It also means taking responsibility for things an employer normally handles: tax, ACC levies, unpaid leave, business costs, records and finding the next job.

This guide explains the practical steps for becoming a contractor in New Zealand. It is written mainly for someone starting as a sole trader, although contracting through a company is also possible.

1. Make sure contracting describes the real relationship

A contractor is self-employed and provides services under a contract for services. An employee works under an employment agreement and receives minimum employment rights.

The label on the paperwork is not the only thing that matters. The real arrangement matters too: who controls the work, whether the worker is genuinely operating a business, whether they can subcontract, how integrated they are into the client's organisation, and who carries financial risk.

From 21 February 2026, New Zealand has a gateway test for qualifying contractor arrangements. If its requirements are not met, the common-law tests still help determine the true nature of the relationship.

A genuine contractor normally:

• invoices for services
• is not entitled to employee annual leave or sick leave
• pays or accounts for their own tax
• pays their own ACC levies
• carries business costs and the risk of quiet periods or late payment

If one organisation controls when, where and how you work, prevents you working for others and treats you like part of its workforce, check the classification carefully before signing.

2. Check that you are allowed to do the work

New Zealand citizens and residents can generally work for themselves, subject to any occupational licensing or registration required for the work.

Visa holders must check the conditions recorded on their own eVisa. The words "open work visa" do not, by themselves, answer every question.

Aroha and Ben: Aroha is studying in New Zealand on a student visa. Ben is her husband and holds a Partner of a Student Work Visa. Ben checks his own eVisa, which says he can do any work. Immigration New Zealand's current conditions for this visa allow the holder to be a sole trader or own a business, although a business owner on this visa cannot employ other people. Ben can therefore start contracting, provided he follows those conditions and any occupational rules. Aroha's student visa did not automatically give him that right; Ben's own visa conditions did.

Eligibility for a Partner of a Student Work Visa depends on Aroha's course and their circumstances. Other visa categories can have different conditions. Check the current Immigration New Zealand page and the exact wording on the eVisa before accepting work.

Some occupations also require New Zealand registration, licences or permits. This is especially important for licensed building work, electrical work, plumbing, gasfitting, financial advice, health services and other regulated work.

3. Choose a business structure

Many first-time contractors begin as sole traders because the structure is simple. A sole trader and the business are legally the same person. You receive the profit personally and are personally responsible for business debts and obligations.

You do not register a separate sole-trader entity with the Companies Office. However, you must:

• have a personal IRD number
• tell Inland Revenue that you are working for yourself
• include business income and allowable expenses in your tax return
• obtain any registrations, licences or permits required for the activity

A company is a separate legal entity with more administration, separate tax returns and Companies Office obligations. It may suit a business planning to add owners, employ staff or retain profits. A company is not automatically more tax-efficient, and it does not remove every form of personal liability.

An NZBN is optional for a sole trader but recommended. It gives the business a standard identifier and can make dealings with clients, suppliers and government agencies easier.

4. Put the basic systems in place

A separate business bank account does not create a sole trader, but it makes records much easier to understand. Use it for client payments and business expenses rather than mixing every transaction with personal spending.

Set up a simple process for:

• preparing quotes and agreeing to work
• tracking time and expenses
• creating invoices and following up overdue payments
• saving receipts and tax records
• moving money into tax and GST savings accounts

Keep evidence for expenses you intend to claim. Choose accounting software, a spreadsheet or a bookkeeper based on the complexity of the business. The best system is one you will update consistently.

5. Use a written contract for services

Do not rely only on a conversation or text message, especially for a large job.

A useful contract for services should make clear:

• the work, deliverables and exclusions
• the hourly, daily or fixed price
• whether prices include or exclude GST
• who approves additional work
• invoicing stages and payment deadlines
• responsibility for materials and expenses
• confidentiality and intellectual property
• insurance and liability expectations
• cancellation, termination and dispute processes

A written contract cannot turn an employee into a genuine contractor if the real relationship is employment. It can, however, prevent many ordinary commercial disagreements. Consider legal advice for important, high-value or unusual contracts.

6. Work out what to charge

Do not take an employee salary and divide it by 2,080 hours. That assumes every working hour can be invoiced and ignores unpaid leave, public holidays, sick days, quoting, administration, training and gaps between contracts.

Your rate needs to account for:

• the personal income you want
• realistic billable hours
• income tax and ACC levies
• tools, vehicle costs, software, insurance and accounting
• unpaid leave and illness
• retirement saving
• late payments and quiet periods
• a margin for risk and business growth

Ben's pricing example: Ben wants his contracting income to replace a $100,000 employee salary. He expects to work 40 hours a week, take four weeks off and invoice about 70% of his available time. He budgets $12,000 for annual business expenses. His required contractor rate is much higher than $100,000 divided by 2,080 because fewer hours are billable and the rate must fund costs and unpaid time.

Use the TaxPop Hourly Rate Calculator to compare an employee salary with a contractor rate or work backwards from a personal income goal.

Your calculated rate is a financial starting point. Market demand, specialist experience, project risk, urgency and the value of the outcome can all affect the final price.

7. Understand how contractor tax is collected

Not every contractor is paid in the same way.

Some contractors receive schedular payments. In those arrangements, the payer deducts tax and sends it to Inland Revenue. The contractor normally gives the payer an IR330C tax-rate notification. The amount deducted is credited against the contractor's final income-tax position.

Other contractors invoice clients without income tax being withheld. They receive the invoice amount and must ensure enough money remains available for tax.

Tax withheld from schedular payments is not necessarily the final tax bill. It also does not automatically cover GST, ACC levies or student-loan obligations. Contractors still need to declare their income and file the required return.

If you have both PAYE employment and contracting income, your contracting profit is additional taxable income. Employee tax codes apply to salary and wages; they are not the mechanism for taxing ordinary sole-trader invoices.

8. Decide how much to reserve for tax

There is no single safe percentage for every contractor. The amount depends on annual profit, other income, tax already withheld, allowable expenses, student-loan obligations and whether money also needs to be reserved for GST and ACC.

A new contractor can start with an estimate, transfer money from each payment into a separate savings account, and update the percentage when actual income becomes clearer. Do not treat a general 25% or 30% rule as a guarantee. An estimate based on expected full-year profit is more useful than applying one percentage blindly.

9. Check whether GST registration is required

GST registration is generally compulsory if your taxable turnover:

• was at least $60,000 during the last 12 months, or
• is expected to be at least $60,000 during the next 12 months

Turnover means taxable sales before deducting expenses, not personal take-home income or profit.

A contractor below the threshold may be able to register voluntarily. Registration means charging GST on taxable supplies, filing GST returns and accounting for GST collected, while potentially claiming GST on eligible business purchases.

Do not treat GST collected from clients as personal income. Keep it identifiable and available for the GST return.

10. Prepare for income tax and provisional tax

A sole trader generally returns net business profit through an Individual income tax return, or IR3. For a standard 31 March balance date, the usual self-filer deadline is 7 July unless an extension applies.

Provisional tax is not a separate type of tax. It is income tax paid during the year toward the expected final liability.

You generally become a provisional taxpayer if your residual income tax from the previous return was more than $5,000. You may also need to consider provisional tax if you expect the current year's residual income tax to exceed $5,000.

Do not assume every contractor has the same three dates. Payment dates and calculations depend on the provisional-tax method, balance date, GST filing frequency and individual circumstances. Check the dates shown in myIR or obtain advice.

11. Allow for ACC levies

ACC levies are separate from general income tax. Self-employed people are normally placed on standard CoverPlus. ACC calculates levies using factors including liable income and the classification for the work performed.

The levy can vary significantly between a desk-based consultant and someone in a higher-risk trade. ACC generally receives earnings information after the tax return is filed and issues its own invoice.

CoverPlus Extra is an optional arrangement that uses an agreed cover amount. Include an ACC estimate when setting your rate, then check the actual classification and invoice rather than relying permanently on a generic percentage.

12. Check student-loan and retirement obligations

Self-employed income can create student-loan repayment obligations even when nothing is deducted from client payments. Schedular deductions do not automatically include student-loan repayments.

Contractors also do not receive an employer KiwiSaver contribution in the same way an employee does. Include retirement saving in the rate and cash-flow plan rather than treating it as whatever is left at year end.

13. Consider insurance and financial protection

ACC covers personal injury, but it does not replace every kind of business insurance. Depending on the work and client requirements, consider public liability, professional indemnity, vehicle or equipment cover, cyber insurance and income protection for illness not covered by ACC.

Build an emergency fund for slow periods and late payments. A high hourly rate does not help if there are long gaps without billable work.

A practical first-30-days checklist

Before accepting the first job

• Check that the relationship is genuinely contracting
• Confirm your visa and occupational conditions
• Choose sole trader or company
• Agree on scope, rate, GST treatment and payment terms in writing
• Estimate business expenses and billable hours

Before sending the first invoice

• Tell Inland Revenue you are working for yourself
• Apply for an NZBN if useful
• Set up business banking and records
• Check whether the payment is schedular and whether an IR330C is needed
• Check whether GST registration is required
• Create a clear, sequential invoice

During the first month

• Transfer tax and GST reserves instead of spending the full payment
• Save invoices and receipts
• Review actual billable time against the rate calculation
• Check the likely ACC classification and levy
• Build a calendar for returns, invoices and payment dates

Frequently asked questions

The bottom line

Becoming a contractor is less about filling in one registration form and more about establishing a small, reliable business system.

Confirm that contracting is the correct legal relationship. Check your own right to work. Choose a suitable structure, agree to the work in writing, set a rate that covers non-billable time and costs, and separate money that belongs to tax, GST and ACC.

Done well, contracting can provide flexibility and control. Done without records, reserves or clear contracts, a good rate can quickly turn into cash-flow stress.

General information only, not tax, legal, financial or immigration advice. Rules and visa conditions can change, and individual circumstances differ.

Official sources checked September 2026: Business.govt.nz guide to becoming a sole trader, Business.govt.nz guide before contracting, Employment New Zealand employee-or-contractor guidance, Immigration New Zealand Partner of a Student Work Visa, IRD contractor tax guidance, and ACC self-employed levy guidance.