New Zealand’s Foreign Investment Fund (FIF) tax applies if you hold offshore investments with a total original cost above NZ$50,000. Rather than waiting until you sell or bring the money home, the FIF rules tax a deemed or actual annual return on your foreign shares, unit trusts, and certain other overseas assets. That figure is added to your other income and taxed at your marginal rate, which reaches 39% above $180,000.
Who Is Caught by the FIF Rules
You have an “attributing interest” in a FIF if you hold shares in a company incorporated overseas, units in an offshore managed fund or unit trust, an interest in a foreign superannuation scheme (depending on how it’s structured), or a life insurance policy issued by a non-resident insurer that contains an investment component. The rules apply to individuals, companies, and trustees.
The main way out is the de minimis exemption. If the total original cost of all your FIF interests stays under NZ$50,000, you don’t apply the FIF calculation at all.1Inland Revenue. Foreign Investment Fund Rules Exemptions Cost means what you paid, not today’s value. Cross the line at any point in the year and the FIF rules apply to your whole foreign portfolio, not just the amount over the threshold.
Shares in most Australian companies listed on the ASX are also exempt. When the exemption applies, dividends are taxed on a cash basis and capital gains only if the shares are held on revenue account.2Inland Revenue. Foreign Investment Fund Australian Listed Share Exemption Tool Inland Revenue publishes an online tool that lets you check a specific ASX ticker.3Inland Revenue. Exemption for Interests in an ASX-Listed Company A separate exemption covers taxpayers with 10% or more in an Australian company that is resident and taxed there.4Inland Revenue. Exemption for Interests of 10% or More in Australian FIFs
Recent arrivals get their own break. If you became a New Zealand tax resident on or after 1 April 2006 and weren’t a resident at any point in the previous 10 years, you qualify as a transitional tax resident. That gives you a four-year exemption from tax on most foreign income, including FIF-attributed income, overseas dividends, foreign rental income, and withdrawals from foreign superannuation schemes. The exemption is automatic, available once only, and runs for four years from the end of the month you either passed the 183-day test or established a permanent home here. It ends early if you opt out on your IR3, apply for Working for Families Tax Credits, or become non-resident. Foreign employment income and income from services performed overseas remain taxable throughout.5Inland Revenue. Temporary Tax Exemption
What Rate You Pay
FIF income has no special rate. It’s added to your other assessable income and taxed at your marginal rate. For the tax year starting 1 April 2025, the individual brackets are:6Inland Revenue. Tax Rates for Individuals
- Up to $15,600: 10.5%
- $15,601 to $53,500: 17.5%
- $53,501 to $78,100: 30%
- $78,101 to $180,000: 33%
- Over $180,000: 39%
Someone on a $90,000 salary who reports $3,000 of FIF income pays 33% on that $3,000. The calculation method sets the reported figure; your personal bracket sets the rate.
How to Calculate FIF Income
Fair Dividend Rate
The Fair Dividend Rate (FDR) method deems your taxable FIF income to be 5% of the market value of your offshore shares on 1 April, the first day of the tax year.7Inland Revenue. Guide to Foreign Investment Funds – IR461 A portfolio worth $120,000 on 1 April produces $6,000 of deemed income regardless of what actually happened to prices or dividends over the year. When actual returns exceed 5%, you pay less than you would on the real gain. When markets fall, you still pay. Actual dividends from a FIF interest are treated as excluded income under FDR, so there’s no double count.
Comparative Value
The Comparative Value (CV) method taxes your real economic gain. Take the closing market value on 31 March, add dividends received and any sale proceeds, then subtract the opening value on 1 April and the cost of purchases made during the year. A positive result is your FIF income. A negative result is zero, not a deductible loss.
CV helps in a down year or when your real return is under 5%. The catch: if you use CV for one FIF holding, you must use it for all of them that year.7Inland Revenue. Guide to Foreign Investment Funds – IR461 No cherry-picking. You can switch between FDR and CV from one year to the next, so most people compute both and choose the lower figure each year.
Cost Method
The cost method is a fallback for holdings where you can’t get a reliable market value at the start of the year, typically unlisted or privately held shares.8Inland Revenue. Using the Cost Method to Determine Foreign Investment Fund (FIF) Income Deemed income is 5% of original cost rather than 5% of market value. Mainstream listed shares and fund units don’t qualify.
FDR Traps With Mid-Year Purchases and Sales
If you buy shares in a foreign company partway through the year, the opening market value for that holding is zero, so no FDR income arises from it in the first year. Sell partway through the year and FDR still uses the full opening market value; there’s no proportional reduction.7Inland Revenue. Guide to Foreign Investment Funds – IR461
A “quick sale” adjustment kicks in when you both increase and decrease your holding in the same FIF interest within the same year. You calculate the quick sale gain separately and add it to the standard FDR amount, which stops people from cycling in and out to exploit the zero opening value on new purchases.
Foreign Tax Credits
If a foreign government withholds tax on FIF-related dividends or other income, you can claim a foreign tax credit against your New Zealand tax on that FIF income. The credit can’t exceed the New Zealand tax payable on that specific FIF interest, and each holding is treated as a separate calculation; you can’t pool credits across investments even from the same country.9Inland Revenue. Income Tax – Foreign Tax Credits – How to Calculate
These credits are non-refundable and can’t be carried forward. Any excess is lost. That bites hardest under FDR, where deemed income (5% of market value) can be low compared to the withholding tax actually paid on dividends.
Records and Currency Conversion
You need the original purchase cost of every offshore investment to check the $50,000 de minimis threshold, the market value of each holding on 1 April (for FDR) and 31 March (for CV), and records of dividends and any buy or sell transactions during the year.
Every foreign currency amount has to be converted to New Zealand dollars. Inland Revenue accepts several sources: its own published rates, Reserve Bank of New Zealand rates, or rates from another country’s central bank. You can use mid-month rates, end-of-month rates, or rolling 12-month averages. Pick your source and method, then stay consistent across all conversions and over time. Cash and foreign cheque rates aren’t acceptable. Keep a record of the source, type, and date of every rate you use.10Inland Revenue. Overseas Currency – Conversion to NZ Dollars
Tax records must be kept for at least seven years.11Inland Revenue. Record Keeping For FIF investors, that means brokerage statements, transaction confirmations, dividend notices, and currency conversion workings.
Filing and Payment
FIF income is reported on the annual Individual Income Tax Return (IR3), filed through myIR. Non-residents with New Zealand tax obligations use the IR3NR instead.12Inland Revenue. Individual Income Tax Return – IR3 The year runs 1 April to 31 March.
Tax owed is due by 7 February of the following calendar year. Tax for the year ending 31 March 2025 is due 7 February 2026. Using a tax agent can extend that to 7 April.13Inland Revenue. Timelines at the End of the Tax Year
If your end-of-year tax bill exceeds $5,000, you go into provisional tax the following year, meaning you pay the expected tax in advance rather than as a single amount after year-end.14Inland Revenue. Provisional Tax Under the standard method with a 31 March balance date, provisional tax is paid in three instalments: 28 August, 15 January, and 7 May.15Inland Revenue. Payment Dates for Provisional Tax The ratio method (six instalments) and the accounting income method are alternatives. Underpaid provisional tax attracts use-of-money interest, charged at 8.97% as of January 2026.16Inland Revenue. Use of Money Interest (UOMI) Rate Change
Penalties and Fixing Past Mistakes
Miss a payment deadline and a 1% penalty applies the day after, followed by a further 4% on day seven if the balance is still unpaid.17Inland Revenue. Late Payment Penalties For income tax (including FIF-related tax), the ongoing monthly penalty that applies to some other tax types does not apply. Instead, use-of-money interest accrues on the outstanding balance at 8.97%.16Inland Revenue. Use of Money Interest (UOMI) Rate Change
If you’ve got errors in past FIF returns, voluntary disclosure before Inland Revenue contacts you about an audit can sharply reduce shortfall penalties. For a lack of reasonable care or an unacceptable tax position, the penalty is reduced by 100% when disclosed before any audit notification. For gross carelessness, a pre-audit disclosure cuts the penalty by 75%. Once an audit has been signalled, the reduction drops to 40%.18Inland Revenue. Penalty Reductions for Voluntary Disclosures If you realise a portfolio crossed $50,000 years ago and you’ve been ignoring the rules, getting in front of it costs far less than waiting.