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HOW DOES THE RDTI WORK?

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Due date calculator

We know that it can be tricky to understand the due dates for the Research and Development Tax Incentive.

Just select your balance date below, and our due date calculator will display the key dates you need to be working toward.

The calculations for your RDTI due dates are based upon today's date.
Your balance date is the last day of your accounting year.

For most businesses the accounting year begins on 1 April and ends the following 31 March. When you apply for an IRD number, your balance date will be 31 March. This is called the standard balance date. You can apply to change your balance date.

Find out more about balance dates on the Inland Revenue website.
Businesses apply for a general approval ahead of submitting their income tax return and R&D supplementary return. You can apply for a general approval for a maximum of three years, and you can apply for one per R&D project.

A general approval is intended to provide certainty to customers that their R&D activities are eligible for the tax incentive.

The date shown is the next due date for submitting your general approval application to myIR. We can usually allow next business day submissions and public holiday extensions. Late applications will fall into the next tax year.

Find out more about RDTI general approvals on the Inland Revenue website.
This is the earliest possible tax year in which you'll be able to claim for the RDTI.

In myIR, you will be asked for the tax year in which your R&D is going to take place. By default, myIR will display the standard 31-March-[year] tax year.

Regardless of your business's accounting year, you will need to select the tax years you are applying for in the standard 31-March-[year] format.
Businesses with an approved general approval must file an R&D supplementary return every income year they want to claim R&D tax credits. This is due within 30 days after your income tax return due date.

The date shown here is the supplementary return due date is for your first eligible tax year.

If you have a tax agent or extension of time the supplementary return will be due within 30 days of the income tax return extension of time due date.

Late RDTI supplementary returns will not be accepted.
You can apply for a general approval for a maximum of three tax years. The date shown is the second tax year that you can claim the RDTI within.
You can apply for a general approval for a maximum of three tax years. The date shown is the third tax year that you can claim the RDTI within.

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Disclaimer

This tool is only intended to provide general advice to the public and is not a substitute for professional tax advice. If you are unsure of your obligations, seek advice from a professional tax advisor.

Please also note that the information in this tool reflects legislation in force at the date of publication, but that this is subject to change.

For more information please see Research and development tax incentive due dates (ird.govt.nz)

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