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Service update Some of our key services are currently unavailable while we make some improvements to our system. These will be back on 8am, 16 April. Find out more

Service update Some of our key services will be unavailable from 3pm, 9 April until 16 April for a system upgrade. Find out more

Income tax Dates

  • MAY 7
    Provisional tax payments are due if you have a March balance date and use the standard, estimation or ratio options.
  • JUN 28
    Provisional tax payments are due if you have a March balance date and use the ratio option.
  • JUL 7
    Income tax returns are due if you do not have an extension of time.

Gather your information

You will need information about your income.

Log in to myIR

Submit a tailored tax rate application

What happens next

We'll send you a letter and certificate within 10 working days of receiving your application to let you know your tailored tax rate.

You need to tell your payer what your tailored tax rate is. Do this by showing them your certificate and giving them a completed Tax rate notification for contractors - IR330C form. You can download the form or get one from your payer.

Tax rate notification for contractors IR330C PDF 94KB Download form

My responsibilities

You need to reapply for a tailored tax rate every tax year you want one.

We’ll contact you through myIR in time for you to reapply.

You can also complete a Tailored tax code or tailored tax rate application - IR23BS form and send this to us.

Tailored tax code or tailored tax rate application IR23BS PDF 99KB Download form