File a Companies income tax return

Income tax Dates

JAN 15

AIM instalments are due if you have a March balance date.
JAN 15

Provisional tax payments are due if you have a March balance date and use the standard, estimation or ratio options.
JAN 29

AIM instalments are due if you file GST monthly and have a March balance date.

All Income tax dates

Before you start

You will need your income details.

In myIR, go to your income tax account panel

This is on the homepage once you've logged in.

Select 'More...'

Select 'File or amend a return'

This is under 'Payments, refunds and returns'.

Select your Companies income tax return - IR4

Follow the prompts to complete your return

Select your income types.
Enter the required information.
Complete any additional forms that apply to your situation.

Our Companies income tax return guide - IR4GU will help you.

Company tax return guide IR4GU 2023 (PDF 440KB) Download guide

Company shareholders' details IR4S 2023 (PDF 93KB) Download return

Log in to myIR

Other ways to do this

If you do not have myIR you can download and print the tax return form.

Additional returns

If you used our paper form you may need to file some additional returns.

Tax sparing

You must file a Tax sparing disclosure return - IR486 if your company has claimed a foreign tax credit for a tax sparing arrangement under a double tax agreement.

File a tax sparing disclosure return - IR486

Group investment funds

You must file a Group investment fund return - IR44E if:

your fund is not a designated group investment fund as defined in section HR 3(6) of the Income Tax Act 2007
your company's fund's income is only Category A, or a combination of Category A and Category B income.

File a Group investment fund return IR44E