NZ Company IRD Registration and Tax Obligations: A Complete First-Year Guide

IRD Registration: The First Step After Incorporation

When you register a company with the Companies Register, you receive a company number -- but your tax obligations are separate and require registration with Inland Revenue (IRD). This guide covers everything a new NZ company director needs to know about tax in year one.

What IRD Numbers Does a New Company Need?

Your company will need the following IRD numbers depending on what it does:

• Company IRD number: required before trading. Apply online at ird.govt.nz. You will need your company number, director details, and a business bank account.
• GST registration: required if turnover will exceed NZ$60,000 in any 12-month period. Voluntary registration is allowed below this threshold and can be beneficial if you have large input costs.
• Employer IRD number: if you hire any staff, you will need to register as an employer and set up PAYE (Pay As You Earn) withholding.
• Fringe Benefit Tax (FBT): if you provide non-cash benefits (company car, health insurance, subsidised meals), you need to register for FBT.

Income Tax in Year One

NZ company income tax is paid at a flat rate of 28% on net profit. In your first year of trading, you will pay income tax based on your actual profit once you file your income tax return after year end. There is no payment due during the first year unless you are in the provisional tax regime.

Your tax return for the year ending 31 March is due by 7 July if you file yourself, or extended to 31 March the following year if you use a tax agent. Registering with a tax agent early is strongly recommended -- the extension alone is worth it.

Provisional Tax: What It Is and When It Applies

If your residual income tax (RIT) in year one exceeds NZ$5,000, you will be required to pay provisional tax in year two. Provisional tax is an advance payment of your expected year-two tax, paid in instalments (usually three) throughout the year. The standard method is 105% of last year's RIT, split into three equal payments due in August, January, and May.

Getting surprised by provisional tax in year two is one of the most common cash flow shocks for new NZ companies. Plan for it from the start by setting aside 28-30% of net profit each month.

GST: Registration, Filing, and the Cashflow Impact

GST registration requires a decision on filing frequency: monthly, two-monthly, or six-monthly. Most new companies choose two-monthly. You collect GST from customers (add 15% to your invoices) and pay GST to IRD after deducting input tax credits (GST you paid to your suppliers).

Key trap: if you are invoice-basis GST (you pay based on invoices raised, not cash received) and have slow-paying clients, you can end up paying GST before receiving the cash. Payments basis accounting (available to businesses under NZ$2 million turnover) aligns GST payment with when you actually receive payment.

PAYE: Employer Obligations from Day One

If you hire staff or pay yourself a salary as a director, you must register as an employer with IRD and comply with the payday filing regime. PAYE must be filed and paid to IRD on payday (or within two working days for large employers). Employers must also contribute to:

• KiwiSaver: 3% employer contribution on gross earnings (if the employee is enrolled)
• Employer superannuation contribution tax (ESCT): withheld from employer KiwiSaver contributions
• Student loan deductions if applicable
• Child support deductions if IRD instructs you

Key IRD Filing Deadlines for New Companies

What an Accountant Does for You in Year One

A good NZ accountant will: register you for all required IRD obligations, set up your accounting software (Xero, MYOB or similar), advise on the right GST basis and filing frequency, structure your director salary for tax efficiency, set up a provisional tax savings plan, and file all returns on time. The cost of an accountant (typically NZ$1,500-4,000 per year for a small company) is almost always outweighed by the penalties and missed deductions you avoid.

If you have recently registered an NZ company and need an accountant or bookkeeper, FreshFirms can connect you with a local professional who specialises in new companies.