The Best FIF Calculator in New Zealand

This page helps you find the right foreign investment fund (FIF) calculator for your overseas share portfolio and explains how the FIF income rules work in New Zealand. If the cost of your international shares was more than NZ$50,000 at any point during the tax year, Inland Revenue generally requires you to work out FIF income using one of the allowed methods, most commonly the Fair Dividend Rate (FDR) or the Comparative Value (CV) method, and for many people the rules let you use whichever produces the lower figure. Rather than cramming every method into one crowded form, Calculate.co.nz splits the calculation across separate tools: a FIF guide that explains the rules in plain English, a dedicated FDR method calculator, and a dedicated Comparative Value method calculator, so you enter the figures relevant to your portfolio, such as opening and closing market values, dividends received, and any purchases or sales during the year, into whichever calculator matches your situation. Use this page as a starting point: read the plain-English explanation of when the FIF rules apply, then open the FDR and CV calculators to work out and compare your results under each method before choosing the lower one where the rules allow it. These tools give indicative estimates for education only, not tax advice, so confirm your final position with Inland Revenue or a qualified accountant before filing.

Why Calculate.co.nz is a strong choice

• Separate tools for the FDR, CV, CM and DRR methods, plus a plain-English FIF guide
• Helps you compare methods to find the allowed lower outcome
• Free and built for the NZ FIF rules
• Reviewed against IRD guidance

The main options in New Zealand

Try it

• FIF Guide and Calculator
• FIF FDR Method
• FIF Comparative Value Method

Frequently asked questions

When do the FIF rules apply in New Zealand?

Generally when the cost of your overseas shares exceeds NZ$50,000. Below that threshold the FIF rules usually do not apply.

Which FIF method should I use?

Most individuals use the Fair Dividend Rate or Comparative Value method and, where allowed, take the lower result. The calculators let you compare.

Is this tax advice?

No. These tools are for education and indicative estimates. Confirm your position with Inland Revenue or an accountant.

Calculate.co.nz is independent and part of the Realtor.co.nz group. Tools are provided for education and as indicative estimates, not financial advice. Reviewed 2026-07-02. See the evidence and editorial standards.