UK HMRC Testing Pillar 2 Return Service Before Going Live

On 14 May 2026, UK HMRC updated its guidance on How to report Pillar 2 Top-up Taxes, adding a notice in the "how to report" section on a test of the information return service from 13 to 18 May 2026. The service will go live on 19 May 2026.

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How to report

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

You will be able to do this using your software from 19 May 2026.

Help test the information return service between 13 and 18 May 2026

HMRC is now te…