Submit a Corporate Interest Restriction return
Submit a full return if your company’s or group’s interest deductions and financing costs are restricted, or an abbreviated return if they are not.
To submit a return, you’ll need to already have a reporting company appointed.
Your reporting company must submit a return within 12 months of the end of the reporting period the return is for.
The method by which a Corporate Interest Restriction return must be submitted is changing. From late 2022, you will be required to submit your return electronically either using commercial software or by completing our online form and template. This applies to both original and revised returns, whether full or abbreviated.
For further information, you may read the
and the .Using an online form
Complete the online form and upload the template. You will need a Government Gateway user ID and password. If you are an agent submitting the return on behalf of your client, you can use your own Gateway user ID and password.
If you do not have a user ID, you can create one when you use the service.
Submit an abbreviated return
If your company or group does not have an interest restriction, but you want to carry forward any unused interest allowance, you should submit an abbreviated return.
To submit your abbreviated return, you can either:
- use commercial software to submit your return
- complete the online form and upload the completed template
Using commercial software
To submit a full or abbreviated return using commercial software, you will need a Government Gateway user ID and password. If you are an agent submitting the return on behalf of your client, you can use your own Gateway user ID and password.
If you do not have a user ID, you can create one when you use the service. We will only accept submissions from organisations that have a Corporation Tax account with us.
Using the online form
Complete the online form and upload the template. You’ll need a Government Gateway user ID and password. If you are an agent submitting the return on behalf of your client, you can use your own Gateway use ID and password.
If you do not have a user ID, you can create one when you use the service.
Get help or more information
For help or more information, you can:
- read more detailed guidance about Corporate Interest Restriction
- contact your Customer Compliance Manager
- email msbcorporateinterest.restrictionmailbox@hmrc.gov.uk — do not email returns
Last updated 16 May 2022 + show all updates
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The process for submitting a return has been updated and you must now do this electronically using commercial software or by completing our online form and template.
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The email address to contact if you need help or more information has been updated.
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First published.