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IR3 and IR3NR customers who earn income other than salary and wages will need to file an income tax return. If you're in business, you'll need to complete and send us an income tax return, that is an IR4, IR6, IR7, IR8, IR9 or IR44. Find out more about the types of business income tax returns, the due dates for completing them and the financial reporting you may need to do.
Different types of income tax returns for different businesses.
The due date of filing your business income tax return depends on the balance date of your business.
Find out which companies must prepare financial accounts and what the minimum financial reporting requirements are.