Thanks for reaching out to us with this VAT concern, @1380663895,
I want to make sure this is resolved immediately. n the meantime, let's try some browser troubleshooting to rule out the error message. You can try using a private window for this. Unexpected issues in QuickBooks are sometimes affected by the amount of data stored in the cache. This is because the regular browser will constantly overwrite itself and will not remove history unless done manually.
The incognito mode will not save any history, so it's a great place to identify issues in the browser. Use these keyboard shortcuts to launch a new private window:
Google Chrome: press Ctrl + Shift + N
Mozilla Firefox: press Ctrl + Shift + P
Safari: press Command + Shift + N
If it works there, clearing the cache to help resolve browser issues in QBO. Using a different browser can also help.
If that doesn't work, I highly recommend reporting this to our Support Team. You can do this by contacting our representatives to help you further:
Go to the Help menu.
At the bottom click on Contact us.
Please let me know the result after trying the troubleshooting steps. I want to make sure this VAT return issue is resolved and I'll be right here if you need further help.
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