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Changes to the myIR login screen are coming You will not be able to use myIR between 1pm Saturday 8 October and 8am Monday 10 October. This is so we can update our external authentication system. From Monday 10 October the myIR login page will have a new look and feel, but the login process will not change.

Use this calculator to work out your basic yearly tax for any year from 2011 to the current year.

It will not include any tax credits you may be entitled to, for example the independent earner tax credit (IETC).

It also will not include any tax you've already paid through your salary or wages, or any ACC earners' levy you may need to pay.

Gather your information

You'll need your total taxable income.

Enter your details

Follow the steps in the calculator. You can save your result as a PDF for your own records.

This calculator is for your personal use only. It does not send information to Inland Revenue or make changes to your records with us.

5 minutes
Income tax calculator

This calculator will work out income tax rates from 2011 to the current year

Go to this tool

You can also work out if you're entitled to a refund or if you have tax to pay for the 2017 and 2018 tax years with our Personal tax worksheets.

Last updated: 17 May 2021
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