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Information requirements

If you pay interest you need to send us the following information after each payment period:

  • name, IRD number and contact address of the payer
  • amount of interest paid, and tax withheld in the period for which interest is paid.

The following information is required for each of the income recipients who received interest:

  • their name
  • their contact details - email, street address or mobile phone number
  • the amount and type of income paid to them
  • the tax withheld or the approved issuer levy paid on it
  • the date the tax was withheld, or the levy paid.

If it is available, you need to provide the following information for each of the income recipients who received interest:

  • their IRD number
  • their date of birth
  • the tax rate they have provided.

You must provide the name of any joint owners. If held, you also need to provide the following information for any joint owners:

  • IRD number
  • date of birth
  • contact details - email, street address or mobile phone number.

You will need to provide this information electronically unless you have an exemption.

Reports are due by the 20th of the month following the month in which the interest income was paid to the investor. You only need to report for the periods in which you make a payment and withhold tax on that payment. Nil returns are not required.

You do not need to provide resident withholding tax (RWT) certificates to investors who have provided you their IRD number, but you do need to give them to those who have not. This also applies to dividends treated as interest and when an agent or trustee withholds RWT from dividends.

When do I pay tax and file a return?

  • If withheld tax of $500 or more is deducted in any month, the return and payment are due by the 20th of the month following the month in which the tax was deducted.
  • If withheld tax of $500 or less is deducted in any month and the accumulated deductions remains below $500 for the year, then only 2 returns and payments are due. These are by 20 March and 20 September each year
  • If withheld tax of $500 or less is deducted in any month, but the total accumulated deductions exceed $500 for the year, the return and payment are due by the 20th of the month following the month the accumulated deductions exceed $500 for the year. Further returns and payments are required by the 20th of the month following the month where any amount is deducted for the rest of the financial year

From 1 April 2020 the 'non-declaration' rate for RWT on interest income is 45% if the recipient has not supplied an IRD number.

Filing investment income electronically

Correcting errors in investment income reporting

Last updated: 16 Jul 2021
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