Employee vs Contractor in NZ: Tax, Legal, and Practical Differences

Whether someone is an employee or a contractor is one of the most consequential distinctions in NZ employment and tax law. Get it wrong — in either direction — and the consequences can be significant: back-taxes, penalties, personal grievance claims, and ACC levies.

The distinction matters because employees and contractors are treated very differently under NZ law:

For a business, misclassifying an employee as a contractor means you have been avoiding obligations you legally owed — and IRD and MBIE can require you to pay them retrospectively, often with penalties and interest.

There is no single test. NZ courts and IRD use a combination of factors to determine the true nature of the relationship. The label in the contract is not determinative — what matters is the reality of how the relationship works.

Control Does the business control how, when, and where the work is done? Employees are typically told how to do their work. Contractors are engaged for a result and have discretion over how they achieve it.

Integration Is the worker integrated into the business? Do they use the business's tools, wear its uniform, and work alongside employees? Integration suggests employment.

Economic dependence Does the worker depend on this one business for most of their income? A true contractor typically has multiple clients.

Ability to subcontract Can the worker send someone else to do the job? Employees cannot. Contractors generally can.

Risk Does the worker bear financial risk? A contractor who quotes a fixed price and bears the risk of cost overruns is more clearly a contractor.

Tools and equipment Who provides the tools? Employees typically use the employer's tools. Contractors often bring their own.

Under the Employment Relations Act 2000, if a contract is designed to defeat the purpose of the Act — to deny someone employment protections they would otherwise have — the court can look through it. A written contract saying someone is a contractor is relevant but not conclusive.

If someone is an employee, the employer must:

1. Deduct PAYE from every pay and pay it to IRD by the 20th of the following month
2. Deduct student loan repayments if applicable
3. Contribute to KiwiSaver — 3% employer contribution (minimum) on gross earnings
4. Pay ESCT (employer superannuation contribution tax) on KiwiSaver contributions
5. Pay the employer ACC levy (currently around 0.63% of liable earnings)

If someone is a contractor, they are responsible for their own tax:

1. File an income tax return each year
2. Pay provisional tax if their residual income tax exceeds $5,000
3. Register for GST if their turnover exceeds $60,000 per year
4. Pay their own ACC levies (self-employed levy, currently around 1.60% of liable earnings)

Some contractor payments are subject to schedular payment withholding tax — a flat rate deducted by the payer before payment. This applies to specific activities listed in Schedule 4 of the Income Tax Act, including labour-only building contracts and certain professional services.

The most common problem we see is businesses engaging workers as contractors when the reality of the relationship is employment. If IRD or MBIE investigates and determines the workers were employees, the business can face:

• Back-PAYE for up to 4 years (or longer if fraud is involved)
• Penalties for non-compliance
• Use-of-money interest on unpaid amounts
• KiwiSaver employer contributions owed retrospectively
• Employment Court claims from workers for unpaid entitlements

IRD and MBIE actively investigate industries where contractor misclassification is common — construction, hospitality, IT, and professional services.

If you are engaging contractors:

• Document the relationship properly with a written contract that reflects the true nature of the arrangement
• Ensure the contractor genuinely has multiple clients, uses their own tools, and has control over how they work
• If in doubt, treat the person as an employee
• Review your contractor arrangements periodically

If you are working as a contractor:

• Register for GST if your turnover is approaching $60,000
• Set aside 25–30% of income for tax
• Pay provisional tax instalments on time to avoid interest
• Keep records of all income and expenses

Getting the employee vs contractor distinction right protects both the business and the worker. If you are unsure about your situation, contact Eastmure & Associates for straightforward advice.