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Provisional tax forms and guides

Title and summary Number

Provisional tax

A quick reference factsheet to provisional tax and how and when it must be paid.


IR235 GST and provisional tax quick reference summary sheet

A quick reference guide to GST and provisional tax that shows you how and when they must be paid.


Provisional tax estimation (IR309)

Use this form to estimate or re-estimate your provisional tax. This service can be completed online.


Provisional tax guide (IR289)

Provisional tax is a way of spreading your tax payments throughout the year. This guide tells you how to calculate your provisional tax and when and how to pay it.