When you complete your income tax return, you will have income or a loss to declare. Find out how how to declare your income or loss.
Completing your tax return
When you complete your income tax return, if your cryptoasset income does not fit into any boxes (such as business or self-employed income), put your net cryptoasset income (or loss) in the 'other income' box.
To claim a loss, you need to show that if you'd made a profit it would have been taxable.
Attach your report
When you file your return, attach the file that has the calculation of your cryptoasset income. This report may be generated from Koinly, CryptoTaxCalculator, another tool, or it may be your own spreadsheet.
Complete my Individual income tax return - IR3
File a Companies income tax return IR4
Fixing mistakes in your return
If you have not got your tax right in a return you’ve already filed, let us know as soon as you can so we can fix it. You may need to make a voluntary disclosure.
Technical rulings
If you want to gain more certainty about how the tax law applies to your situation, you can apply for a ruling. There is a fee for rulings. A ruling might be useful if your situation is complex or there is a significant amount of tax involved.