PIE Tax Calculator
Calculate your prescribed investor rate (PIR) for portfolio investment entity funds. PIR rates are 10.5%, 17.5%, or 28% depending on your taxable income.
About this calculator
This calculator implements PIE / PIR tax rates (10.5%, 17.5%, 28%) from Inland Revenue (IRD). Last consulted 1 April 2026. Verify the figures yourself by following the link.
Current NZ PIE tax rates (PIR)
FY 2026-27- •Lowest PIR: 10.5% (income ≤$14k AND total ≤$48k)
- •Middle PIR: 17.5% (income ≤$48k AND total ≤$70k)
- •Top PIR (default): 28% (everyone else)
- •PIR vs RWT advantage: Up to 11% lower than RWT for top earners
- •Re-check PIR each April: Based on lower of last 2 years' income
Source: IRD — PIR
Disclaimer
This calculator provides estimates for general information purposes only. Results should not be relied upon as professional financial, tax, or legal advice. Tax rates and thresholds are based on publicly available IRD data and may change. Always consult a qualified tax agent or financial adviser for advice specific to your circumstances.
How PIE (Portfolio Investment Entity) tax works
PIE funds (most KiwiSaver and managed funds) tax investment income at your Prescribed Investor Rate (PIR) — capped at 28%, lower than top income tax rates.
- 1
Determine your PIR based on income
Income ≤$14k AND total ≤$48k: 10.5% · Income ≤$48k AND total ≤$70k: 17.5% · Otherwise: 28%
Uses lower of two prior years' income — re-check each April.
- 2
PIE income is taxed at PIR (not your marginal rate)
PIE_tax = PIE_income × PIR
Big win for high earners: 28% PIR vs 33-39% marginal on direct shares.
- 3
Tax is deducted by the fund (final tax)
Net_return = gross_PIE_return − PIE_tax
Don't need to re-declare in your IR3 — fund deducts and pays directly to IRD.
- 4
Wrong PIR creates problems
If actual marginal > PIR → IRD bills you for the difference at year-end
Always pick the correct PIR or you'll get a tax bill.
Worked example
Inputs: $50k PIE balance, 6% return, 28% PIR
Result: Gross return $3,000 → PIE tax $840 → Net $2,160.
Frequently Asked Questions
What is a PIE fund?
What is my Prescribed Investor Rate (PIR)?
What is the tax advantage of PIE funds?
Do I need to declare PIE income in my NZ tax return?
PIE (Portfolio Investment Entity) funds like KiwiSaver and managed funds tax investors at their Prescribed Investor Rate (PIR) rather than their marginal tax rate. The maximum PIR is 28%, meaning high earners save tax compared to direct investment.
How this calculator works
PIR is determined by your income in either of the last two tax years. Options are 10.5%, 17.5%, or 28%. PIE tax is final — you do not declare PIE income in your IR3 return. If you use too low a PIR you must pay the shortfall; too high a PIR and IRD refunds the excess.
Prescribed Investor Rates (PIR)
| PIR 10.5% | Income up to $14,000 in both prior tax years |
| PIR 17.5% | Income $14,001 – $48,000 in both prior years |
| PIR 28% | Income above $48,000 in either of the two prior years |
| Maximum PIR | 28% (regardless of marginal rate) |
PIE income is not included in your income tax return as it is taxed at source at your PIR.
Worked Examples
$20,000 PIE income, investor on PIR 17.5%
PIE tax $3,500. Compared to 33% marginal rate ($6,600), saving is $3,100.
- PIE income: $20,000
- PIR: 17.5%
- PIE tax withheld: $20,000 × 17.5% = $3,500
- Equivalent tax at 33% marginal rate: $20,000 × 33% = $6,600
- Tax saving from PIE structure: $6,600 − $3,500 = $3,100
- PIE tax is final — no further declaration required in IR3
$5,000 PIE income, investor on PIR 10.5%
PIE tax $525.
- PIE income: $5,000
- PIR: 10.5%
- PIE tax withheld: $5,000 × 10.5% = $525
- PIE tax is final — no IR3 declaration required
Built and maintained by Konstantin Iakovlev. Data sourced from the IRD and official New Zealand government sources.
Last reviewed: