Do I enter the costs inclusive or exclusive of VAT at the expense?
Receipts and invoices for expenses should (almost) always state the VAT percentage and the VAT amount. If the VAT percentage is not stated, then the VAT cannot be entered. Below you can read how to process the VAT on a receipt.
Enter amounts excluding VAT
Normally, you enter the costs under Amount excluding VAT. After that, the amount is automatically calculated as soon as you have selected the VAT percentage.
Enter amounts including VAT
However, you can also choose this by selecting the checkbox Amounts incl VAT and then entering the amount including VAT by Amount incl. Make sure that you again select the correct VAT percentage under VAT type.