How to report Pillar 2 Top-up Taxes

When to report

Once your group has registered to report Pillar 2 Top-up Taxes, you’ll need to submit your returnsinformation return on or before the deadlines.deadline, Thisunless the group meets the conditions for a Below Threshold Notification.

The deadline is 18 months after the end of the first accounting period.

From the second period onwards the submission deadline will be 15 months after the end of the accounting period.

An information return (also known as a GIR, or GloBE information return) is separate to your UK tax return.

What happens if you report late

If you do not submit your returns by the deadline, you may have to pay penalties. Read the Multinational Top-up Tax and Domestic Top-up Tax manual for more information.

What you will need

You will need to have completed your registration for Pillar 2 Top-up Taxes.

You will also need:

• Pillar 2 ID (you’ll get this on the confirmation page after you’ve registered)
• access to a third party software that offers Pillar 2 services

Remember to check the accounting period carefully before submitting. Once any submission has been made for an accounting period, you cannot change that accounting period.

How to report

You must use compatible software to make your Pillar 2 Top-up Taxes submissions.

HMRCYou iswill workingbe withable to do this using your software developersfrom 19 May 2026.

You must submit your UK tax return and one of the following by the submission due date:

• Informationinformation Returnreturn
• Overseasoverseas Returnreturn Notificationnotification

Your Pillar 2 Top-up Taxes dashboard (accessed through your business tax account) will have details of due dates, and any returns overdue.

Below-ThresholdBelow-threshold Notificationnotification

From your Pillar 2 dashboard, you can submit a Below-Thresholdbelow-threshold Notificationnotification if the group:

• does not have consolidated annual revenues of 750 million euros or more in at least 2 of the previous 4 accounting periods
• is not expected to make consolidated annual revenues of 750 million euros or more within the next 2 accounting periods

After you’ve submitted your return

After you have submitted your information return you will receive an email from HMRC confirming that the information return has been received and whether it has been accepted.

If you receive an email saying there were errors in your return, contact your software provider.

If you submit your information return succesfully during the testing period, you will not need to submit it again once the service goes live on the 19 May.

After you’ve reported

Find out how and when to pay Pillar 2 Top-up Taxes.