Why am I unable to file a VAT return

Hi there, Dave.
 

I understand how important it is to file your VAT return on time. Allow me to provide clarification and assist you further.
 

There are several reasons why you're unable to record figures or file your VAT return in QuickBooks Online:
 

• The return period or filing method in QuickBooks doesn’t align with your tax setup.
• The tax return is already locked.
• Issues with the MTD (Making Tax Digital) or e-filing connection.
• User permissions are preventing edits.
   

You may refer to this article for more information, along with the reasons mentioned above, to assist you with your VAT-related concern: Fix MTD (Making Tax Digital) issues in QuickBooks (VAT and ITSA)
 

If none of the above solutions resolve the issue, I suggest filing your VAT return in a private/incognito window. Doing so prevents the browser from saving history or cache, which can help identify browser-related issues:
 

• Google Chrome: Press Ctrl + Shift + N
• Mozilla Firefox: Press Ctrl + Shift + P
• Safari (new versions): Press Command + Shift + N
   

If you continue to need assistance, feel free to comment below, and I’ll gladly help further.