OVERSEAS SHARES: SHOULD YOU BE A DE MINIMIS INVESTOR?

Overseas shares: Should you be a de minimis investor? It’s a good question. Learn why staying under the “de minimis” threshold(opens in new tab) might not actually get you the most tax-efficient outcome. Let’s get into the nuts and bolts of that. First, here is a high-level overview:

To introduce this, firstly let’s point out the obvious: Investing globally offers New Zealand investors the opportunity to diversify their portfolios and tap into international growth. However, navigating the tax landscape associated with overseas investments can be complex. This article delves into the tax considerations for New Zealand residents investing abroad, highlighting potential pitfalls and offering guidance to optimize tax efficiency. And the main question of course re overseas shares: Should you be a de minimis investor?

New Zealand’s Tax Obligations on Global Income

As a New Zealand tax resident, you’re required to pay tax on your worldwide income, encompassing earnings from both domestic and international sources. This includes interest, dividends, and other returns from overseas investments. It’s essential to understand that different investment types are subject to varying tax rules and rates.

Double Tax Agreements (DTAs) and Their Role

Investing internationally may expose you to taxation in both New Zealand and the country where your investment resides. To mitigate the risk of double taxation, New Zealand has established Double Tax Agreements (opens in new tab)(DTAs) with numerous countries. DTAs determine which country has taxing rights over specific income types and often provide tax credits to offset taxes paid overseas. For instance, if you pay tax on investment income in a foreign country, you might be eligible for a corresponding tax credit in New Zealand, ensuring you’re not taxed twice on the same income.

Tax Treatment of Different Overseas Investments

Foreign Investment Funds (FIFs)

Investments in overseas shares, mutual funds, or certain foreign superannuation schemes typically fall under the Foreign Investment Fund (FIF) regime. The FIF rules are designed to tax New Zealand residents on attributed income from their offshore investments, even if that income hasn’t been repatriated. There are several methods to calculate FIF income, with the Fair Dividend Rate (FDR) and Comparative Value (CV) methods being the most common.

A third method, the Revenue Account Method (RAM), taxes gains on a realisation basis with a 30% discount, rather than on an unrealised, deemed basis. It was previously only available to recent migrants and returning New Zealanders — but a Bill before Parliament proposes opening it up to all New Zealand-resident individuals and eligible trustees holding unlisted foreign shares, subject to a five-year consistency rule once you opt in or out. This is a significant enough change that it deserves its own dedicated article — we’ll cover it in full separately in an article coming late 2026.

The FDR method taxes a deemed return of 5% on the market value of your overseas investments, while the CV method taxes the actual change in value plus any distributions received. Choosing the appropriate method depends on your specific investment portfolio and market conditions.

Australian Unit Trusts (AUTs)

Many New Zealand investors are drawn to Australian Unit Trusts (AUTs) due to their accessibility and familiarity. However, it’s crucial to recognize that AUTs are subject to Australia’s tax laws, which mandate the distribution of all income, including realized capital gains.

For New Zealand investors, this means that even if you haven’t sold your units, you might still be taxed on the trust’s realized gains. This scenario can lead to unexpected tax liabilities, especially if the AUT has significant turnover in its investment portfolio.

De Minimis Exemption

So we come to our original question re overseas shares: should you be a FIF de minimis investor?

New Zealand’s tax system provides a de minimis exemption, but only for individuals (natural persons). Companies and most trusts don’t get this exemption at all — they apply the FIF rules from the first dollar of overseas shares, regardless of how small the holding is.

The threshold itself is currently changing. It’s been fixed at $50,000 since 2000 — sections CQ 5(1)(d) and DN 6(1)(d) of the Income Tax Act 2007 — and hasn’t moved since, which quietly caught more investors every year as $50,000 became worth less in real terms. A Bill introduced to Parliament on 10 September 2026 proposes lifting it to $100,000, backdated to apply from 1 April 2026, the start of the current income year. This isn’t law yet — until the Bill passes, $50,000 remains the legally applicable threshold — but given it’s already been through Budget announcement and is now before Parliament, the direction of travel is about as clear as these things get. If your portfolio sits between $50,000 and $100,000 right now, this is genuinely worth tracking rather than assuming either figure definitely applies to you.

One mechanic worth understanding regardless of which figure ultimately applies: the threshold is based on cost, not current market value, and it’s tested throughout the year — go over the threshold at any point, even for a single day, and the FIF rules(opens in new tab) apply to your entire portfolio for that whole year. There’s no partial or prorated treatment.

Under the de minimis exemption, investors are taxed only on dividends received, rather than on attributed income under the FIF rules. While this might seem advantageous, especially for investments with low dividend yields, it’s essential to consider the long-term implications. For instance, if your investment’s value appreciates significantly, surpassing the threshold, you’ll transition out of the de minimis exemption and become subject to the standard FIF rules, potentially leading to higher tax liabilities. But, read on…

Tax Sparing Credits

In certain situations, New Zealand’s DTAs with specific countries allow for tax sparing credits. These credits enable New Zealand residents to claim a tax credit even if tax hasn’t been paid in the other country, often to encourage investment in developing nations. Currently, New Zealand has such agreements with countries including China, Fiji, India, Korea, Malaysia, Singapore, and Vietnam. To claim these credits, investors must complete a disclosure return. (See our related articles about how foreign-sourced income is treated in Malaysia and Singapore)

Common Tax Pitfalls for Global Investors

Overlooking Foreign Tax Obligations

It’s not uncommon for investors to focus solely on New Zealand’s tax requirements, inadvertently neglecting tax obligations in the investment’s country of origin. This oversight can lead to penalties, interest charges, or even legal complications abroad. Before investing internationally, it’s imperative to research and understand the tax laws of the foreign jurisdiction and ensure compliance with all applicable regulations.

Misapplying the FIF Calculation Method

Selecting the incorrect method for calculating FIF income can result in either overpaying or underpaying taxes. For example, in a year where your investments yield a return significantly higher than 5%, using the FDR method might be more tax-efficient. Conversely, in a downturn, the CV method could be advantageous. Regularly reviewing your investment performance and consulting with a tax professional can help determine the most appropriate calculation method for your situation.

Ignoring Currency Exchange Impacts

Investing in foreign assets introduces currency exchange risk. Fluctuations in exchange rates can affect the value of your investment and, consequently, your tax obligations. For instance, a favorable exchange rate movement might increase your investment’s value, leading to higher taxable income under the FIF rules. Conversely, adverse movements could result in losses that might not be fully deductible. It’s essential to factor in currency considerations when assessing the potential returns and risks of overseas investments.

Strategies to Optimize Tax Efficiency

Utilizing PIE Funds for International Exposure

Portfolio Investment Entities(opens in new tab) (PIEs) offer a tax-efficient vehicle for gaining international investment exposure. PIEs apply the investor’s Prescribed Investor Rate(opens in new tab) (PIR), capped at 28%, to income, which can be particularly beneficial for individuals in higher tax brackets. Moreover, income earned within a PIE is generally excluded from the investor’s personal tax return, simplifying tax reporting and reducing administrative burdens.

Leveraging Double Tax Agreements

Before investing in a foreign country, it’s prudent to review New Zealand’s DTA with that nation. DTAs can provide clarity on taxing rights, potential tax reductions

Get Advice

So, re overseas shares: should you be a de minimis investor? It depends — and it depends even more right now, given the threshold itself is mid-change. The FIF de minimis threshold is not something to be feared. Exceeding it might work for you.

Check out this excellent article(opens in new tab) at InvestNow. Talk to your financial advisor(opens in new tab); contact us to discuss tax and structure – always an important consideration! It might be more worthwhile (in your situation) to look at other options such as rental property, managed funds or direct investments. (Bonus tip: Which is better: Shares or property? Check out this property vs shares comparison article we wrote recently.)