Can we have an 'Attachment' Box on the VAT Returns page to put in the Reconciled VAT Return?

Let me provide some information about adding an attachment, @A-E-Albert. 

At this time, you can only add attachments to the customer, supplier profiles, and their transactions. The feature to add an Attachment box from the VAT returns page is still unavailable in QuickBooks Online. 

But, you can take a screenshot of the VAT return and attach the file to that transaction. You can do it by going to that transaction, then at the bottom left, click Attachments.

Here’s more information on how to add Attachments in QuickBooks Online. 

Let me know if there’s anything that you need or help. I’m always here to assist.

Absolutely no idea what you are talking about, there is no attachment link anywhere on the VAT Submission page. If I have missed it, please let me know where it is.