Income tax Dates
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.
This calculator has been updated with the tax changes for the year ended 31 March 2025.
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.
This calculator will work out tax on your annual income using rates from 2011 to the current year
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