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This calculator helps you estimate what you may pay or receive under the new child support formula from 1 April 2019 to 31 March 2020.

This calculator helps you work out the total number of nights in a 12-month period you have a child (or children) in your care. From 1 April 2015, the child support formula recognises a parent's ongoing daily care of their child (or children) when care is 28% or more of the time. Parents and non-parent carers, eg, grandparents, can receive child support when they provide ongoing daily care for a child (or children) for at least 35% of the time. This calculator helps you work out the total number of nights in a 12-month period you have a child (or children) in your care. The results are based on the information you've provided and don't guarantee recognised care will be accepted.

Already registered for myIR? Work out your income tax filing options by logging in. If you’re not registered for myIR, register now by going to 'Register'.

This calculator guides you through a series of questions to help calculate your income and deductible expenses for a mixed use asset for a tax year. It should be used by individuals, partnerships, trusts and look-through companies. For other entities, please contact your tax advisor.

Employers and employees can work out the PAYE on salary and wages, including any holiday pay using this calculator.

Use this calculator to work out whether you're required to file an IR3 tax return or request a personal tax summary for the tax year 1 April 2012 to 31 March 2013.

This table contains the exchange rates to convert foreign currency amounts to New Zealand dollar values for the period 1 April 2007 to 31 March 2008.

This table lists the end of month exchange rates acceptable to us for the 12-month period ended 31 March 2009.

These tables contain the exchange rates to convert foreign currency amounts to New Zealand dollar value.

This table lists the end of month exchange rates acceptable to us for the 12-month period ended 31 March 2010. These rates are now supplied from Bloomberg, in a new PDF format. If you are visually impaired, please contact us on 0800 377 774 to obtain the exchange rate that you require.

These tables contain the exchange rates to convert foreign currency amounts to New Zealand dollar value. These rates are now supplied from Bloomberg, in a new PDF format. If you are visually impaired, please contact us on 0800 377 774 to obtain the exchange rate that you require.

This table contains the end of month exchange rates to convert foreign currency amounts to New Zealand dollar value. These rates are now supplied from Bloomberg, in a new PDF format. If you are visually impaired, please contact us on 0800 377 774 to obtain the exchange rate that you require.

These tables contain the exchange rates to convert foreign currency amounts to New Zealand dollar value. These rates are now supplied from Bloomberg, in a new PDF format. If you are visually impaired, please contact us on 0800 377 774 to obtain the exchange rate that you require.

This table contains the end of month exchange rates to convert foreign currency amounts to New Zealand dollar value. These rates are now supplied from Bloomberg, in a new PDF format. If you are visually impaired, please contact us on 0800 377 774 to obtain the exchange rate that you require.

These tables contain the exchange rates to convert foreign currency amounts to New Zealand dollar value. These rates are now supplied from Bloomberg, in a new PDF format. If you are visually impaired, please contact us on 0800 377 774 to obtain the exchange rate that you require.

This table contains the end of month exchange rates to convert foreign currency amounts to New Zealand dollar value. These rates are now supplied from Bloomberg, in a new PDF format. If you are visually impaired, please contact us on 0800 377 774 to obtain the exchange rate that you require.

Note: The October and November rolling 12-month average rates were incorrect on previous PDF's. These have now been corrected. These tables contain the exchange rates to convert foreign currency amounts to New Zealand dollar value. These rates are now supplied from Bloomberg, in a new PDF format. If you are visually impaired, please contact us on 0800 377 774 to obtain the exchange rate that you require.

This table contains the end of month exchange rates to convert foreign currency amounts to New Zealand dollar value. These rates are now supplied from Bloomberg, in a PDF format.

These tables contain the exchange rates to convert foreign currency amounts to New Zealand dollar value. These rates are now supplied from Bloomberg, in a PDF format.

This table contains the end of month exchange rates to convert foreign currency amounts to New Zealand dollar value. These rates are now supplied from Bloomberg, in a PDF format.

These tables contain the exchange rates to convert foreign currency amounts to New Zealand dollar value. These rates are now supplied from Bloomberg, in a PDF format.

This table contains the end of month exchange rates to convert foreign currency amounts to New Zealand dollar value. These rates are now supplied from Bloomberg, in a PDF format.

These tables contain the exchange rates to convert foreign currency amounts to New Zealand dollar value. These rates are now supplied from Bloomberg, in a PDF format.

This table contains the end of month exchange rates to convert foreign currency amounts to New Zealand dollar value. These rates are now supplied from Bloomberg, in a PDF format.

These tables contain the exchange rates to convert foreign currency amounts to New Zealand dollar value. These rates are now supplied from Bloomberg, in a PDF format.

This table contains the end of month exchange rates to convert foreign currency amounts to New Zealand dollar value. These rates are now supplied from Bloomberg, in a PDF format.

These tables contain the exchange rates to convert foreign currency amounts to New Zealand dollar value. These rates are now supplied from Bloomberg, in a PDF format.

This table contains the end of month exchange rates to convert foreign currency amounts to New Zealand dollar value. These rates are now supplied from Bloomberg, in a PDF format.

These tables contain the exchange rates to convert foreign currency amounts to New Zealand dollar value. These rates are now supplied from Bloomberg, in a PDF format.

This table contains the end of month exchange rates to convert foreign currency amounts to New Zealand dollar value. These rates are now supplied from Bloomberg, in a PDF format.

These tables contain the exchange rates to convert foreign currency amounts to New Zealand dollar value. These rates are now supplied from Bloomberg, in a PDF format.

Information about how child support is worked out and how much the living allowances are. For use in the 2014 assessment year (1/4/2013 - 31/3/2014).

IR150

Information about how child support is worked out and how much the living allowances are. For use in the 2015 assessment year (1/4/2014 - 31/3/2015).

IR150

Use this calculator if you're a withholder - you're a withholder if you're the person required to deduct an amount of RLWT on behalf of the vendor.