Introducing the UK’s First Advance Notification Form Checker for R&D Tax

Tax Cloud is excited to let all potential R&D tax credit claimants know that Myriad, one of the UK’s most respected R&D tax advisors (and our creators!), has launched the UK’s first checking tool for the advance notification form.

For accounting periods beginning on or after 1 April 2023, some companies in the UK must submit an Advance Notification Form, also known as a claim notification form, to HMRC within six months of the end of the accounting period in which their R&D took place. Missing this deadline could mean losing out on valuable tax relief.

This is only applicable to companies that are claiming R&D tax credits for the first time or for those who have not made a R&D tax credit claim in the last three years.

The new checker also complies with HMRC’s additional ruling regarding amended CT600 submissions.

HMRC’s rules around claim notification forms can be quite tricky to understand and have a real impact on the validity of your claim.

Myriad’s Advance Notification Form checker helps you quickly verify:

  • Whether you need to submit an Advance Notification Form
  • The key deadlines based on your company’s year-end

It’s fast, simple, and designed to help innovative businesses stay compliant and maximise their R&D tax benefits.

Myriad’s CEO, Barrie Dowsett, said:

“We found that many companies ringing up weren’t aware that they even needed to submit a claim notification form, let alone what their deadline was. We didn’t see any other checking tool available and said, enough is enough. We hope this tool makes it easier for companies to make valid claims and benefit from this valuable government incentive.”

Try our Advance Notification Form Checker now and take the guesswork out of compliance.

Posted by

Millie Palmer
Technical Analyst


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The expertise behind Tax Cloud

Tax Cloud is powered by Myriad, a leading consultancy that specialises in securing R&D tax incentives and grants for UK businesses. Our team is proud of our proven success rate, and of the many tens of thousands of pounds we’ve helped put in the pockets of UK companies. With many delighted clients supported, we’re trusted and respected in our industry.

Meet some of the team behind Tax Cloud:

Jillian Chambers

Technical Analyst

Rabia Mohammad ACCA ATT

Corporate Tax Associate

Chris Dowsett

Tax Incentives Manager - UK & IE

Rochelle Roca Bailey

Client Services Executive