How your share investments are taxed in NZ depends less on how much you make and more on what you hold and how you hold it. Dividends, the foreign investment fund rules and PIE funds each work differently, and getting the category right is most of the battle.
Quick answer
New Zealand has no general capital-gains tax, so for many ordinary investors the gain on selling NZ or Australian shares held for the long term is not taxed. What is taxed:
- Dividends you receive (with imputation credits often attached on NZ shares).
- Foreign shares over a threshold, under the foreign investment fund (FIF) rules.
- Trading gains if you are effectively in the business of buying and selling shares.
- PIE income, taxed at a capped 28% prescribed investor rate inside a portfolio investment entity.
So the question is rarely “how much did I make” — it is “what kind of holding is this, and which set of rules applies”.
The detail, in plain English
Think of your shares in three buckets.
1. NZ and Australian shares held as an investor. Dividends are taxable, usually with imputation credits that offset some of the tax already paid by the company. Long-term capital gains are generally not taxed — unless you are a trader (see below).
2. Foreign shares under the FIF rules. If the cost of your overseas shares (outside most ASX-listed companies) exceeds NZ$50,000, the FIF rules usually apply. The common method is the fair dividend rate (FDR), which taxes a deemed 5% of the value of the holding each year regardless of actual dividends or gains. There are alternative methods for some situations.
3. PIE funds. Many KiwiSaver and managed funds are portfolio investment entities. Income is taxed inside the fund at your prescribed investor rate (PIR), capped at 28%, which can be lower than your personal top rate — so getting your PIR right matters.
The trader question cuts across all of this: if you buy with the intention of resale, or trade frequently enough to look like a business, your gains can become taxable income even on NZ shares.
Australian-listed shares are a useful exception to flag. Many ASX-listed companies are carved out of the FIF rules, so they are often taxed more like NZ shares — dividends taxable, long-term gains generally not — rather than under the deemed-return FIF methods. That single distinction can change the tax on an otherwise identical-looking overseas portfolio.
It is also worth noting that the FIF de minimis is tested on cost, not market value. If the total cost of your in-scope foreign shares stays under NZ$50,000, the FIF rules generally do not bite, and you are taxed only on actual dividends. Cross that cost line and the deemed-return regime takes over for the whole holding.
A simple example
Compare two investors with the same $80,000 of foreign shares:
| Holding | How it is taxed |
|---|---|
| $80,000 of US shares (over $50k) | FIF rules — deemed 5% = $4,000 taxable income under FDR |
| $80,000 in a NZ PIE fund | Income taxed in the fund at your PIR, capped at 28% |
The investor with US shares is taxed on a $4,000 deemed amount even if the shares paid no dividend and did not rise, because FDR taxes a fixed percentage of value. The PIE investor is taxed only on the income the fund actually earns, at a capped rate. Same money, very different tax, purely because of the wrapper.
Common mistakes to avoid
- Assuming “no CGT” means no tax. Dividends, FIF income and PIE income are all taxable.
- Missing the $50,000 FIF threshold. Cross it with foreign shares and the rules change completely.
- Using the wrong PIR. Too low and you owe more at year-end; too high and you overpay.
- Trading without realising it. Frequent buying and selling can make your gains taxable as income.
Updating your prescribed investor rate after a change in income is the quiet win here. A PIR that was right two years ago can be wrong today, and the gap shows up as either an unexpected square-up or money left on the table.
Where this fits in your return
Dividend and FIF income go on your IR3, with imputation and other credits reducing the tax. PIE income is generally taxed within the fund, but the wrong PIR can create a square-up. If your investment income pushes your residual income tax over the line, you can land in provisional tax the next year.
The approach connects with how other gains are taxed, including cryptoassets, which sit in their own category.
How Fernway can help
We work out which bucket each holding falls into, apply the FIF method that gives the best legitimate result, check your PIR is correct, and make sure dividends and credits are reported properly. If you hold a mix of NZ, Australian and US shares, the categorisation alone can change your bill materially.
Book a free 20-minute review and we will sort out how your portfolio should be taxed.
This is general information only, not personalised tax advice. Your situation may differ, so confirm it with us or check ird.govt.nz.
In plain English: NZ has no general CGT, but dividends, foreign shares over $50,000 and PIE funds are all taxed in their own way — so the wrapper your shares sit in matters more than the size of your gain.
This is general information, not personalised tax advice.See our full disclaimer.