Business Tax- 3001 9631 If Box L9 is completed or the return period start date in Box 30 is on/after 1 April 2022

business-tax-3001-9631-if-box-l9-is-completed-or-the-return-period-start-date-in-box-30-is-on-after-1-april-2022

Business Tax- 3001 9631 If Box L9 is completed or the return period start date in Box 30 is on/after 1 April 2022

22nd April 2022

IRIS Business Tax: 3001 9631 If Box L9 is completed or the return period start date in Box 30 is on/after 1 April 2022, L65, L60

This was a 2022 issue and a 2024/2025 issue.

Please first update your IRIS version to the latest version – check by going to Help and About and Check for downloads. Once updated to latest version you need to regenerate the return, if same issue then read below.

This was originally a HMRC issue in 2022 and they have asked affected users, to submit by paper to HMRC. We have found two possible workarounds 1 or 2: If you notice a penny rounding issue (eg between boxes L55/L65 etc) then BT is automatically rounding the values, You have TWO options 1) Include a rounded figure on the R&D claim OR 2) change the value then go to Data Entry – Research & Development (CT600L) – R&D Expenditure Credit – Tick the Box R&D Tax Credit – Manually change the value.

If both do not work OR there is no rounding issue and you are on IRIS version 24.3.2, then you may need to submit by paper as this is confirmed as a DEFECT and the IRIS Development team is investigating this. (A 3rd workaround is to manually change the ‘Qualifying expenditure in RDEC data entry’ as the current value is triggering the warning)..

You may also get a validation error when generating like this: CT600 Filing Validations – R&D – From 01 April 2021, all companies claiming the SME R&D Payable Tax Credit and or Research and Development Expenditure Credit will be required to complete the CT600L supplementary form. However, HMRC have identified several scenarios in which you may be unable to submit the correct figures on the CT600L due to a restriction within the HMRC Corporation Tax online service.
L65:

• If the accounting period start date is before 01 April 22, and the value in box L65 is greater than 0.
• Or if there is a value in box L35