Following a transfer from QB Desktop to QB Online, how do I account for VAT Exceptions prior to the VAT start date in QBO?

Hello, DeanRedel.

I hope you're doing well these days. I can definitely point you in the right direction to correct your VAT exceptions in QuickBooks Online. 

The exceptions might not have been included during the migration (and there could be other adjustments, too). Entering the transactions or adjusting the amounts manually can potentially mess up the books and VAT accounting. To prevent this, I'd recommend contacting our QuickBooks Online support. 

They have the tools to adjust the VAT exceptions accordingly. They'll also ensure your VAT filings in QuickBooks Online are correct moving forward. To reach them: 

1. Click the Help icon. 
2. In the QB Assistant chatbox, type "Talk to a human."
3. Click the Contact Support Team option, then click the link.
4. In the box, enter something like "Correct VAT after Desktop migration." 
5. Hit Let's talk.
6. Choose Start an email. 

More details about handling VAT in QuickBooks Online are found here. 

After contacting and correcting the VAT exceptions, our articles are readily available in case you need help with other things. Check them out in our Help Articles overview page. 

You're still welcome to visit the Community forums if you have future questions for the Online version. Just post your reply here and I'll be there to help out. Hoping you'll have an awesome day ahead!