Managed Funds vs ETFs: Tax Treatment in New Zealand (2025-26)
How PIE funds, non-PIE managed funds, and foreign ETFs are taxed differently in NZ — PIR rates, FIF rules, and worked examples comparing tax on $100,000 invested in a Kernel PIE fund vs a Vanguard ETF.
Published 12 April 2026 · Reviewed by NZ Tax Tools Editorial Desk
Choosing between a PIE fund, a non-PIE managed fund, and a direct foreign ETF in New Zealand is not just an investment decision — it’s a tax decision. The structure you choose determines whether you pay tax at a capped 28% rate, your full marginal rate, or a 5% deemed return. This guide breaks down the differences for the 2025-26 tax year.
PIE Funds: The Tax-Advantaged Default
A Portfolio Investment Entity (PIE) is a type of managed fund that meets specific IRD criteria. Most NZ-based index funds and managed funds offered by providers like Smartshares, Kernel, Simplicity, and Milford are structured as PIEs.
The key tax advantage of a PIE fund is that your investment income is taxed at your Prescribed Investor Rate (PIR), not your marginal income tax rate.
PIR Rates for 2025-26
| Your Taxable Income (Last 2 Years) | PIR |
|---|---|
| $14,000 or less | 10.5% |
| $14,001 – $48,000 | 17.5% |
| $48,001 or more | 28% |
The maximum PIR is 28% — even if your marginal tax rate is 30%, 33%, or 39%. This means anyone earning over $48,000 gets a tax discount by investing through a PIE rather than holding the same assets directly.
Why 28% Matters
Under NZ’s progressive tax system, the marginal rates above $48,000 are:
| Income Bracket | Marginal Rate | PIR Saving |
|---|---|---|
| $48,001 – $70,000 | 30% | 2% |
| $70,001 – $180,000 | 33% | 5% |
| $180,001+ | 39% | 11% |
For a high earner on the 39% marginal rate, investing through a PIE rather than a non-PIE fund saves 11 cents per dollar of investment income. On a $100,000 portfolio returning 5%, that is $550 per year in tax savings.
Another advantage: PIE income is tax-paid and does not need to be included in your personal tax return. The fund manager handles the tax, and it is treated as final. This simplifies your tax obligations considerably.
Non-PIE NZ Managed Funds
Some NZ funds are not structured as PIEs. If you invest in a non-PIE fund, the distributions you receive — dividends, interest, and realised gains passed through to you — are taxed at your marginal income tax rate.
This means a person on the 33% marginal rate pays 33% on distributions, compared to 28% in a PIE. There is no cap, and you must declare the income in your IR3 tax return.
Non-PIE funds are relatively uncommon now for retail investors, as most NZ providers have adopted PIE structures. However, some older or specialist funds may still be non-PIEs.
Foreign ETFs: FIF Tax Rules
If you invest directly in overseas-listed ETFs — for example, buying Vanguard VGS or VOO through a platform like Sharesies, Hatch, or Interactive Brokers — different rules apply entirely.
Under the $50,000 FIF Threshold
If the total cost of all your foreign investments is $50,000 or less at all times during the tax year, the FIF rules do not apply. Instead, you simply pay tax on dividends received at your marginal rate. Capital gains are not taxed (assuming you are not a share trader).
This is the simplest scenario and is how many NZ investors with smaller portfolios are taxed.
Over $50,000: FIF Kicks In
Once your total foreign investment cost exceeds $50,000 at any point in the tax year, you must calculate FIF income using one of two methods:
Fair Dividend Rate (FDR): Your FIF income is deemed to be 5% of the opening market value of your foreign investments (their value on 1 April). This is taxed at your marginal rate. Actual dividends are ignored.
Comparative Value (CV): Your FIF income is the actual change in value plus dividends minus purchases. If the result is negative, FIF income is zero (no loss offset). You choose whichever method gives the lower result.
For more detail on FIF calculations, see our FIF tax guide.
Side-by-Side Comparison: $100,000 Invested
The following table compares the annual tax on $100,000 invested across three structures for someone on a 33% marginal tax rate, assuming a 5% total return (3% capital growth + 2% dividends):
| Factor | PIE Fund (e.g., Kernel NZ20) | Non-PIE NZ Fund | Foreign ETF (e.g., Vanguard VGS) |
|---|---|---|---|
| Tax regime | PIE (PIR) | Marginal rate | FIF (FDR or CV) |
| Tax rate applied | 28% (PIR cap) | 33% (marginal) | 33% (marginal) on deemed income |
| Taxable amount | $5,000 (actual return passed through) | $5,000 (distributions) | $5,000 (5% FDR deemed return) |
| Annual tax | $1,400 | $1,650 | $1,650 |
| Tax return required? | No (tax is final) | Yes (IR3) | Yes (IR3) |
| Capital gains taxed? | Handled within PIE | Only if distributed | Captured in FDR deemed return |
In this scenario, the PIE fund results in $250 less tax per year than either the non-PIE fund or the foreign ETF. Over 10 years, that compounds to meaningful savings.
Worked Example: Kernel NZ20 (PIE) vs Vanguard VGS (FIF)
Emma earns $95,000/year and has $100,000 to invest. She is considering Kernel NZ20 (a NZ-listed PIE) or Vanguard VGS (an Australian-listed global ETF, subject to FIF since cost exceeds $50,000).
Option A: Kernel NZ20 (PIE)
- Opening value: $100,000
- Total return: 7% = $7,000
- PIR: 28%
- Tax: $7,000 x 28% = $1,960
- After-tax return: $5,040
- No IR3 filing needed for this income
Option B: Vanguard VGS (FIF — FDR Method)
- Opening value on 1 April: $100,000
- FDR deemed income: $100,000 x 5% = $5,000
- Marginal rate: 33%
- Tax: $5,000 x 33% = $1,650
- After-tax return: $7,000 actual return - $1,650 tax = $5,350
- Must file IR3 and complete FIF schedule
In a strong year (7%+ returns), the FIF route actually results in less tax because the deemed return is capped at 5%, while the PIE taxes actual returns. However, in a weak year (say 2% actual return):
Weak Year Comparison (2% Actual Return)
| Kernel NZ20 (PIE) | Vanguard VGS (FIF — CV) | |
|---|---|---|
| Actual return | $2,000 | $2,000 |
| Taxable amount | $2,000 | $2,000 (CV method, lower than FDR’s $5,000) |
| Tax | $2,000 x 28% = $560 | $2,000 x 33% = $660 |
| After-tax return | $1,440 | $1,340 |
In weak years, the PIE wins on both rate (28% vs 33%) and consistency.
When Non-PIE or Foreign ETFs Make Sense
Despite the PIE advantage, there are scenarios where other structures may be preferable:
- Low income earners (under $48,000): Your marginal rate may be 17.5% or lower, meaning a non-PIE fund is taxed at a lower rate than the 28% PIR. However, your PIR would also be 17.5% — so the PIE is still equal or better.
- Under the $50,000 FIF threshold: If you hold under $50,000 in foreign investments, you pay tax only on dividends (often 1-2% of value). This can be cheaper than a PIE taxing full returns at 28%.
- Access to global markets: PIE funds available in NZ may not cover every market segment. Direct foreign ETFs give access to niche sectors, specific country funds, or lower-fee global options not available as NZ PIEs.
- Very high returns in foreign markets: Under FDR, any return above 5% is effectively tax-free. In a year with 15% returns, FIF/FDR produces significantly less tax than a PIE taxing the full 15%.
Key Takeaways
- PIE funds are taxed at your PIR (max 28%), which is lower than the 30%-39% marginal rates most working NZers face
- PIE income is tax-paid and final — no IR3 filing required for PIE investments
- Non-PIE NZ funds are taxed at your full marginal rate on distributions
- Foreign ETFs over the $50,000 cost threshold are subject to FIF tax — typically 5% deemed return under FDR, taxed at your marginal rate
- For most NZ investors on 30%+ marginal rates, PIE funds offer the simplest and most tax-efficient structure
- In strong market years, FIF/FDR can produce less tax than PIE because the deemed return is capped at 5%
- Use the income tax calculator to check your marginal rate and determine which structure suits your situation