FIF Tax Explained: How Overseas Investments Are Taxed in New Zealand

FIF (Foreign Investment Fund) tax applies when you hold more than $50,000 in cost of overseas investments outside a PIE fund. The most common calculation method is the Fair Dividend Rate (FDR), which taxes you on 5% of the opening market value of your overseas holdings each year, at your marginal income tax rate. On $100,000 of US shares at the start of the tax year, that's $5,000 of deemed income, regardless of what your investments actually returned.

Here's how it works, when it applies, and how to calculate it.

What is FIF tax?

FIF stands for Foreign Investment Fund. It's the NZ tax regime that applies to offshore investments held by NZ tax residents. Instead of taxing you on actual returns (which can be complex to track across multiple currencies and investment types), FIF uses simplified calculation methods to determine your taxable income from overseas holdings (IRD).

The most commonly used method, the Fair Dividend Rate (FDR), deems your annual income from overseas investments to be 5% of their opening market value. This deemed income is then taxed at your marginal income tax rate.

FIF exists because NZ doesn't have a capital gains tax on shares. Without FIF, investors could hold overseas shares that pay little or no dividends and never pay NZ tax on the growth, while the value of their holdings increased over time. FIF ensures overseas investments are taxed annually, even if the actual income is minimal (IRD).

Who does FIF apply to?

FIF applies to NZ tax residents who hold overseas investments with a total cost exceeding $50,000 at any point during the tax year (1 April to 31 March).

The key details of the $50,000 threshold:

• It's based on cost, not market value. If you invested $45,000 that has grown to $80,000, you're still under the threshold. If you invested $55,000 that has dropped to $40,000, you're over it (IRD).
• It applies across all your overseas holdings combined, not per platform. $30,000 on Hatch plus $25,000 on Sharesies equals $55,000 total, and FIF applies to the entire amount.
• It's triggered if you exceed $50,000 at any point during the tax year, even briefly. If you invest $60,000 in April, sell $15,000 in May, and hold $45,000 for the rest of the year, FIF still applies for that tax year (IRD).
• It excludes Australian-listed shares. Most shares listed on the ASX are exempt from FIF, as are shares in Australian companies that are also listed on the NZX (IRD).

What counts as "overseas investments" for FIF:

• US shares held through Hatch, Sharesies, Tiger Brokers, or Jarden Direct
• US-listed ETFs (VOO, VTI, QQQ, etc.)
• Shares listed on exchanges outside NZ and Australia (London, Hong Kong, etc.)
• Foreign unit trusts and investment vehicles not structured as NZ PIE funds

What does NOT count:

• NZ-domiciled PIE funds that hold overseas assets (Kernel, Smartshares, funds on InvestNow). These funds handle overseas tax internally. You don't face FIF personally (IRD).
• Most ASX-listed shares and ETFs
• NZX-listed shares, even if the company operates internationally

Below the $50,000 threshold

If your total cost of overseas investments stays below $50,000 for the entire tax year, FIF doesn't apply. You pay tax only on dividends and other income you actually receive from those investments. For US shares, 15% is withheld at source under the NZ-US double tax agreement, and the remainder is taxed at your NZ marginal rate (IRD).

This means smaller overseas portfolios have a simpler tax position. You only deal with FIF once your cost base crosses $50,000.

The four FIF calculation methods

NZ law provides four methods for calculating FIF income. You can choose the method that results in the lowest tax, and you can choose different methods for different investments. In practice, most individual investors use the Fair Dividend Rate (FDR) method (IRD).

1. Fair Dividend Rate (FDR)

This is the default method for most NZ investors with overseas shares.

How it works: Your FIF income is deemed to be 5% of the opening market value (the value on 1 April or when you first acquired the investment during the year) of each overseas investment. This deemed income is taxed at your marginal income tax rate.

The formula: FIF income = Opening market value x 5%

Key features:

• Simple to calculate
• Applies regardless of actual returns. If your investments returned 15%, you're taxed on 5%. If they returned 2%, you're still taxed on 5%.
• There's a cap: if the actual gain in a year (market value increase plus dividends) is less than 5% of opening value, you can use the actual gain instead. If you made a loss, your FIF income is zero. You never pay FIF tax on more than your actual gain (IRD).
• FDR cannot be used for investments where you hold 10% or more of a foreign company.

2. Comparative Value (CV) method

How it works: Your FIF income is the increase in market value of your overseas investments during the year, plus any dividends or distributions received, minus any new amounts invested.

The formula: FIF income = (Closing market value + amounts received) minus (Opening market value + amounts invested)

Key features:

• Taxes you on actual economic gain, which can be less than 5% in low-return years
• Allows losses to reduce your FIF income to zero (but you can't carry FIF losses forward to offset future FIF income)
• More work to calculate, especially with multiple trades during the year
• Useful in years when actual returns are below 5%, where CV produces a lower tax result than FDR

When CV saves you money: If your overseas investments returned only 2% in a given year, FDR would tax you on 5% of the opening value. CV would tax you on the actual 2% gain. In a loss year, CV results in zero FIF income. However, remember FDR also caps at actual gains and has zero tax on losses, so the difference mainly matters when returns are positive but below 5%.

3. Cost method

How it works: Your FIF income is deemed to be 5% of the cost of your overseas investments.

The formula: FIF income = Cost of investment x 5%

Key features:

• Simple to calculate
• Useful when your investments have appreciated significantly and their market value is much higher than cost. In that scenario, 5% of cost is less than 5% of market value, making the cost method cheaper than FDR.
• On a $50,000 cost investment that has grown to $120,000: FDR taxes you on 5% x $120,000 = $6,000. Cost method taxes you on 5% x $50,000 = $2,500.

4. Deemed rate of return method

How it works: A prescribed rate (set by the government, typically around 7% to 8%) is applied to the cost of your investment.

This method is rarely used by individual investors because the prescribed rate is usually higher than the 5% FDR rate, making it more expensive. It's mainly relevant for certain types of foreign superannuation and insurance products (IRD).

Fair Dividend Rate: how most people calculate FIF

FDR is the standard for most NZ retail investors with US shares. Here's how it works in practice.

Step-by-step FDR calculation

1. Determine the opening market value of each overseas investment on 1 April (start of tax year). For investments purchased during the year, use the cost at acquisition.
2. Multiply by 5% to get the deemed FIF income.
3. Check the cap: if your actual gain (change in market value plus dividends received) is less than the FDR amount, use the actual gain instead. If you made a loss, your FIF income is zero.
4. Add up the FIF income across all your overseas investments.
5. Include the total FIF income in your tax return. It's taxed at your marginal income tax rate.

Worked example: $80,000 US share portfolio

Starting position (1 April 2025):

• US shares held on Hatch worth $80,000 (market value)
• Marginal tax rate: 33%

Scenario A: Strong year (12% actual return)

• FDR deemed income: $80,000 x 5% = $4,000
• Actual gain: $80,000 x 12% = $9,600
• FIF income (lower of actual gain or FDR): $4,000
• Tax: $4,000 x 33% = $1,320
• In a strong year, FDR is favourable because you're taxed on 5% instead of the actual 12%.

Scenario B: Low return year (3% actual return)

• FDR deemed income: $80,000 x 5% = $4,000
• Actual gain: $80,000 x 3% = $2,400
• FIF income (lower of actual gain or FDR): $2,400 (the cap applies)
• Tax: $2,400 x 33% = $792
• The cap protects you. You're taxed on actual returns, not the full 5%.

Scenario C: Loss year (-10% actual return)

• FDR deemed income: $80,000 x 5% = $4,000
• Actual gain: -$8,000 (loss)
• FIF income: $0 (losses result in zero FIF income)
• Tax: $0
• No FIF tax in loss years. However, you can't carry the loss forward to reduce future FIF income.

Worked examples at different portfolio sizes and marginal rates

Opening market value	FDR deemed income (5%)	Tax at 33%	Tax at 39%
$60,000	$3,000	$990	$1,170
$80,000	$4,000	$1,320	$1,560
$100,000	$5,000	$1,650	$1,950
$150,000	$7,500	$2,475	$2,925
$200,000	$10,000	$3,300	$3,900
$500,000	$25,000	$8,250	$9,750

These assume the full 5% FDR applies (i.e., actual returns exceeded 5%). In low-return or loss years, the actual tax would be lower or zero (IRD).

For context: On a $100,000 portfolio earning 8% ($8,000 actual return), FDR taxes you on $5,000 instead of $8,000. At a 33% marginal rate, that's $1,650 in FIF tax versus $2,640 if you were taxed on the full return. In strong return years, FDR provides a tax advantage.

Comparative Value method: when it saves you money

The CV method calculates FIF income based on actual gains rather than a deemed 5%. It's worth considering when:

• Your investments returned less than 5% in a given year
• Your investments lost value (CV results in zero FIF income, same as FDR)
• You made significant purchases during the year that increased your cost base relative to market value

Worked example: CV vs FDR

Portfolio: $100,000 opening value, $105,000 closing value, $1,500 dividends received, no new purchases.

FDR method:

• FIF income: $100,000 x 5% = $5,000

CV method:

• FIF income: ($105,000 + $1,500) - $100,000 = $6,500

In this case, FDR is better ($5,000 vs $6,500). FDR wins when actual gains exceed 5%.

Same portfolio but a weak year: $100,000 opening, $101,000 closing, $1,500 dividends.

FDR method:

• FIF income: $100,000 x 5% = $5,000
• Cap check: actual gain = ($101,000 + $1,500) - $100,000 = $2,500
• Capped FIF income: $2,500

CV method:

• FIF income: ($101,000 + $1,500) - $100,000 = $2,500

In low-return years, both methods produce a similar result because of the FDR cap. The CV method is most useful when you've made new investments during the year (increasing your cost base under CV but not reducing the FDR calculation).

You can choose the method that gives you the lowest income for each investment, and you can change methods from year to year. You don't need to commit to one method permanently (IRD).

How to report FIF in your tax return

FIF income is reported in your individual tax return (IR3) for the tax year ending 31 March.

What you need

1. Opening market values of all overseas investments on 1 April (or acquisition date if bought during the year). Your platform provides this in their annual tax report.
2. Closing market values on 31 March (needed for CV method).
3. Dividends received during the year.
4. FIF tax report from your platform (Hatch, Sharesies, and Tiger Brokers all provide these).

The process

Most NZ investors with overseas shares through platforms like Hatch or Sharesies can rely on the annual tax report provided by the platform. These reports calculate your FIF income under the FDR method and sometimes the CV method as well.

You include the FIF income figure from the report in the "overseas income" section of your IR3 tax return. If you file through myIR, there's a specific field for FIF income.

US dividends have 15% withheld at source. This withholding tax can be credited against your NZ tax liability on the same income. Your platform's tax report will include the US withholding amounts. You claim this credit in your tax return (IRD).

Filing deadlines

The standard filing deadline for individual tax returns is 7 July following the end of the tax year (31 March). If you use a tax agent, extended deadlines apply (typically 31 March of the following year). FIF income is part of your regular tax return, not a separate filing (IRD).

FIF and investing platforms

Hatch

Hatch provides one of the most detailed FIF tax reports among NZ platforms. It calculates FIF income under both the FDR and CV methods, allowing you to choose the lower figure. The report is available in your Hatch account after the end of each tax year. Hatch also provides a summary of US dividends and withholding tax credits (Hatch).

Sharesies

Sharesies provides an annual tax report that includes FIF calculations for your overseas holdings. The report covers both NZ and overseas investments and provides the information you need for your tax return. It's available in your Sharesies account (Sharesies).

Tiger Brokers

Tiger Brokers NZ provides annual tax statements that include FIF calculations. The reports cover your US and other international holdings (Tiger Brokers NZ).

InvestNow and Kernel

If you invest through InvestNow or Kernel in NZ-domiciled PIE funds, you don't face FIF personally, even if the fund holds overseas assets. The fund handles all overseas tax within the PIE structure. Your tax is simply your PIR applied to your returns, capped at 28%, and the fund handles it. Nothing to report in your tax return (InvestNow, Kernel, IRD).

This is one of the strongest arguments for PIE funds over direct overseas share ownership for investors who want simplicity.

Strategies to manage FIF tax

Stay under the $50,000 threshold

If your overseas holdings are approaching $50,000 in cost, you may prefer to keep them just below the threshold and direct additional overseas investment through NZ PIE funds (which don't count toward the threshold). This avoids FIF entirely on your directly held overseas shares (IRD).

Use NZ-domiciled PIE funds for international exposure

Kernel's Global 100 and S&P 500 funds, Smartshares' US 500 and Total World ETFs, and various international funds on InvestNow all hold overseas assets inside a NZ PIE structure. You get international diversification without FIF complexity, and your tax is capped at 28%. The trade-off is slightly higher fund fees compared to US-listed ETFs (Kernel, Smartshares, InvestNow).

Choose the lowest FIF calculation method each year

You can select the method that produces the lowest FIF income for each investment, and you can change methods between tax years. In most years, FDR will be the best choice. In low-return years, the FDR cap or the CV method may produce a lower result. Your platform's tax report often shows both calculations (IRD).

Time significant purchases carefully

If you're planning a large overseas investment that will push you over the $50,000 threshold, timing can matter. Investing late in the tax year (close to 31 March) means you have a shorter holding period for that year's FIF calculation. However, this is a minor factor and generally shouldn't drive investment decisions.

Consider the PIE vs direct trade-off

For investors on a 33% or 39% marginal rate, the PIE tax cap of 28% is a significant advantage that may outweigh the higher fund fees. For investors on a 28% or lower marginal rate, the PIR provides no additional advantage over direct ownership, and the lower fees of US-listed ETFs make direct ownership more attractive (assuming you're comfortable with FIF reporting).

Marginal rate	PIR (PIE)	FDR tax on 5% deemed	PIE more favourable?
10.5%	10.5%	10.5%	Neutral
17.5%	17.5%	17.5%	Neutral
30%	28%	30%	Slightly (2% saving)
33%	28%	33%	Yes (5% saving on returns)
39%	28%	39%	Yes (11% saving on returns)

The higher your marginal rate, the more valuable the PIE cap becomes relative to FIF at your full marginal rate (IRD).

Common questions

What is the $50,000 FIF threshold based on?

The $50,000 threshold is based on cost, not market value. Cost means the NZD amount you paid for your overseas investments, including brokerage but excluding FX fees. If you invested $45,000 and your portfolio has grown to $90,000 in market value, you're still under the threshold. Conversely, if you invested $55,000 and the value dropped to $40,000, you're still over it because your cost exceeded $50,000 (IRD).

Do I pay FIF tax on a loss year?

No. Under the FDR method, if your overseas investments lose value during the tax year, your FIF income is zero. You don't pay any FIF tax on losses. However, you also can't carry FIF losses forward to offset future FIF income. Each tax year is calculated independently (IRD).

Does FIF apply to ASX-listed shares?

Generally, no. Most shares listed on the Australian Stock Exchange (ASX) are exempt from FIF for NZ investors, including Australian-domiciled ETFs. This is because of the specific exemption for Australian-resident companies. However, some ASX-listed companies that are not Australian residents (e.g., companies incorporated outside Australia but cross-listed on the ASX) may still be subject to FIF. Check with a tax professional if you're unsure about a specific ASX-listed investment (IRD).

How does FIF interact with the 15% US withholding tax?

Under the NZ-US double tax agreement, 15% is withheld from US dividends at source (assuming you've completed a W-8BEN form). This withholding tax can be credited against your NZ tax liability. If your FIF income under FDR is $5,000 and your marginal rate is 33%, your NZ tax is $1,650. Any US withholding tax paid during the year (say, $500 on dividends) can be credited against this, reducing your net NZ tax to $1,150 (IRD).

Do I need an accountant for FIF?

Not necessarily. If you use Hatch, Sharesies, or Tiger Brokers, the platform provides a FIF tax report that does the calculations for you. You transfer the figures to your IR3 tax return. For straightforward situations (one or two platforms, FDR method), many investors handle this themselves through myIR. If you have complex holdings, multiple methods to compare, or large portfolios, a tax professional can ensure you're using the most favourable method and claiming all available credits (IRD).

What happens if I go over $50,000 briefly and then sell back under?

If your cost of overseas investments exceeds $50,000 at any point during the tax year, FIF applies for that entire year. Even if you sell down to $30,000 the next day, FIF is triggered for the year. The threshold is a "high-water mark" within each tax year, not a snapshot at a single date (IRD).

Can I offset FIF tax against other investment income?

FIF income is treated as overseas income in your tax return. You can use foreign tax credits (like the 15% US withholding tax) to offset the NZ tax on FIF income. However, FIF losses (zero FIF income in a loss year) cannot be carried forward or used to offset other types of income. Each FIF calculation is standalone for the year (IRD).

Is FIF taxed on top of dividend tax?

No, FIF is not an additional tax on top of dividends. Under the FDR method, the 5% deemed income figure is your total FIF income, and dividends are part of that. You don't pay tax separately on the FDR amount and then again on dividends. The US withholding tax on dividends is credited against your NZ FIF tax liability. In effect, FIF replaces the normal dividend-only tax approach with a deemed return methodology once you're above the $50,000 threshold (IRD).

How do I know if my overseas investments are in a PIE fund?

Check the fund's Product Disclosure Statement (PDS) on the Disclose Register, or check the provider's website. Funds structured as PIE funds will state this clearly. All Kernel funds are PIE. Most Smartshares ETFs are PIE. Many funds on InvestNow are PIE (look for "PIE" in the fund description). If a fund is a PIE, it handles tax internally and doesn't contribute to your $50,000 FIF threshold (Disclose Register, provider websites).

What's the best way to avoid FIF completely?

Invest your international allocation through NZ-domiciled PIE funds instead of holding overseas shares directly. Kernel's Global 100 and S&P 500 funds, Smartshares' US 500 and Total World ETFs, and various international funds available on InvestNow all provide overseas exposure inside a PIE wrapper. You get international diversification with no FIF, no FX fees, and tax capped at your PIR (max 28%). The trade-off is higher fund fees than US-listed equivalents (IRD, Kernel, Smartshares, InvestNow).

What to do next

• ETF investing NZ: Compare NZX, ASX, and US-listed ETFs and their tax treatment
• Index funds NZ: NZ-available index funds with fees and PIE status
• Sharesies vs Hatch vs InvestNow: Platform comparison including tax handling
• NZ investing platforms compared: Full platform comparison

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Last updated: 1 March 2026. Sources: IRD (ird.govt.nz), specifically the FIF guidance (IR461), Hatch (hatchinvest.nz), Sharesies (sharesies.co.nz), Tiger Brokers NZ (tigerbrokers.co.nz), InvestNow (investnow.co.nz), Kernel (kernelwealth.co.nz), Smartshares (smartshares.co.nz), Disclose Register (disclose-register.companiesoffice.govt.nz). Tax rules are current as at the 2025/26 tax year. Tax thresholds and rates can change. This is financial information, not financial advice.