A 39%-bracket Kiwi pays 28% tax inside a PIE fund and 39% on direct ETF income: an 11-point gap that compounds into five figures over 15 years. Direct ETFs answer with 0.03% fees and the $50,000 FIF tripwire. The full maths, both ways.
Adjust the variables below to simulate outcomes, compare rates, and see real-time projections.
A direct comparison of features, rules, limits, and eligibility requirements.
| Feature / Detail | PIE Fund | Direct ETF (Non-PIE) |
|---|---|---|
Top tax rate on earnings | 28%: the PIR ceiling, whatever you earn | Your marginal rate, up to 39% |
PIR thresholds (from 1 April 2025) | 10.5% up to $15,600 income; 17.5% to $53,500; 28% above | N/A: normal brackets apply: 10.5% / 17.5% / 30% / 33% / 39% |
Tax admin | Fund calculates and pays; no return needed if your PIR is right | You declare dividends and, above the threshold, run FIF calculations yourself |
FIF rules on foreign shares | Handled invisibly inside the fund | Over $50,000 NZD cost of foreign holdings, you owe tax on a deemed 5% return (FDR method): dividends or not |
Fees | Typically 0.20%-0.60% for NZ index PIEs | As low as 0.03%-0.10% for US-listed index ETFs, plus brokerage and FX |
Choice | A curated shelf of NZ-domiciled funds | Thousands of ETFs across every market and sector |
Analyze the advantages and drawbacks of each financial product before making a decision.
Tom is a Wellington engineer on $130,000: a 33% bracket, 39% in his bonus years. Every dollar of dividend income from directly held ETFs is taxed at his marginal rate. The identical portfolio inside a PIE fund is taxed at his PIR, which the law caps at 28% no matter what he earns.
Since 1 April 2025 the PIR bands sit at: 10.5% for taxable income up to $15,600, 17.5% up to $53,500, and 28% beyond: assessed on the lower of your last two years' income. For anyone in the 30%+ brackets, the PIE wrapper is a permanent, legislated discount of 2 to 11 points on investment tax.
One piece of housekeeping keeps it that way: certify the correct PIR with your provider each year. Too low, and IRD bills the shortfall at your marginal rate with the discount forfeited; unnecessarily high, and recovering the overpayment means chasing a refund through your return.
Small annual differences become large terminal ones. Take $100,000 producing a 5% taxable return each year. Taxed at the 28% PIR, it compounds at 3.6% net and reaches about $170,000 in fifteen years. Taxed at 39%, it compounds at 3.05% and reaches about $157,000.
That $13,000 gap assumes identical gross returns. Hand the direct ETF its fee advantage: say 0.40% a year, and it claws back roughly half the difference, which is why the comparison genuinely flips for investors whose PIR isn't capped: at a 17.5% PIR versus a 17.5% marginal rate, the tax edge is zero and the direct fund's lower fee wins outright.
The rule that falls out of the arithmetic: your bracket picks your wrapper. Above $53,500 of income, tax dominates fees — PIE. Below it, fees dominate tax: direct. Run your own rates in the simulator above; the crossover is sharp.
Here is the rule that ambushes DIY investors. Once your directly held foreign shares — US ETFs, most non-exempt foreign stock — exceed $50,000 NZD of original cost, the Foreign Investment Fund regime applies to the entire holding. Under the common Fair Dividend Rate method, IRD deems you to have earned 5% of the portfolio's opening market value and taxes that at your marginal rate, whether the market rose, fell, or paid you nothing.
Concretely: $100,000 of US index ETFs, deemed income $5,000, tax at 39% = $1,950 for the year: even if the fund paid $1,300 of actual dividends and the market finished down. Inside a PIE, the fund runs equivalent calculations internally at your capped 28% and you never file a thing; the same exposure costs roughly $1,400 with zero paperwork.
Practical play for direct investors near the line: the threshold is cost basis, not market value, and it applies per person: a couple holds $100,000 of foreign cost jointly before FIF bites. Cross it knowingly or don't cross it at all; discovering FIF three years late, with returns to amend, is the expensive version of this lesson.
This is a rare comparison with clean break-points. Earn enough that your PIR caps at 28% while your marginal rate is 33-39%, and the PIE's tax saving dwarfs any fee advantage a direct ETF can offer, 11 points of tax versus perhaps 0.4 points of fees is not a contest. Earn under $53,500 and the tax edge shrinks or vanishes, so the direct route's lower costs win: right up until your foreign holdings cross $50,000 NZD of cost and the FIF regime turns your simple portfolio into an annual deemed-income calculation. The blended answer many experienced Kiwis land on: keep direct foreign holdings under the FIF threshold for cheap growth, and run everything beyond it through NZ-domiciled PIE index funds that swallow the complexity at 28%.
Anyone in the 30%, 33% or 39% brackets, anyone with more than $50,000 of foreign exposure, and every investor who never wants to see an FIF worksheet.
Investors under the $53,500 PIR threshold, and disciplined small portfolios staying below $50,000 NZD of foreign cost basis.
These links include relevant regulators and page-specific references. Worked examples and projections may also use stated assumptions:
