Hi,Sometimes when we sent invoices to clients instead of VAT exclusive, we sent VAT inclusive mistakenly. Is there a way to see VAT inclusive/exclusive report by inv? Tx

You can only add a VAT inclusive amount column when you run a Customer Detail report in QuickBooks Online (QBO), ptmmat. To have an option to add a VAT exclusive/inclusive column, I suggest sending a feedback request to our product developers.

Here's the step for sending a Feedback form:
 

1. Go to the Gear icon and click Feedback.
2. Enter your comments or product suggestions.
3. Click the Next button to submit feedback.  

Refer to this article for detailed steps in customizing your reports in QBO.
 
In case you want to save a copy of your reports, you can export them and save them outside QuickBooks.
 
If you have further concerns about managing your reports about VAT sales. Feel free to reply, we'll be on the lookout and help you anytime.