You can export the data to Excel and handle the submission externally, as QuickBooks doesn’t support corporation tax return submissions in iXBRL format, Scoopandscales.
If you have a QuickBooks Online Accountant (QBOA) subscription or have invited your accountant to your account, you can easily file your corporate tax return with HMRC. QBOA is an iXBRL-compatible software that is fully equipped to support iXBRL features necessary for compliant submissions.
For more details on how to prepare and submit your Corporation Tax return, refer to this article: File your corporation tax return using Workpapers in QuickBooks Online Accountant.
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