How do I pay a supplier by Proforma? I have a "Proforma Invoice" but that will be superseded by an actual VAT invoice when the goods arrive?

I'm glad you ask that question, RDI1.

Proforma invoice is a non-posting transaction or form which a sale is waiting to be finalised. Thus, customer or supplier isn't oblige to pay the amount from there. 

If you wish to apply payment, you'll want to create an invoice for it. 

1. Go to + New.
2. Select Invoice or Send invoice.
3. Fill in the necessary information.
4. Click Save and close or Save and send.

In case you want a reference with VAT processing in QBO, check our Resource page through this link: VAT for QBO United Kingdom.

If you have other questions on future tasks, feel free to access our Help Articles.

Keep in touch for more questions with this managing Proforma invoices. I've got your back. Have a good day.