I have a purchase invoice from a consultant whereby he charges his fee with VAT and then takes away the grant amount. This leaves a net amount payable plus the original vat for the original invoice value. How can I enter this as the invoice input screen will not allow me to adjust the vat?
For invoices that do not bear an exact amount of VAT (e.g. 20% on NET) you can input additional lines with negative entries. I provided an example a couple of days ago for another user with a similar question, take a look at the screenshot: