Hi Catnonie,

Thanks for joining this thread on the community!

You are correct in a mechanical sense, in order to get either a sale or purchase in QuickBooks to post to Vat on Sales and VAT on purchases simultaneously, a VAT group would need to be made, and applied to a custom VAT code within QuickBooks Desktop.

Just so I understand what you're trying to achieve a little more, would this Vat group you're trying to create be used on Sales/ Purchases/ or both. And would it to your knowledge also populate the Net value of sales and Net value of purchases of your VAT3 report?

Thanks in advance!

Chris.