Field help (IVCVATRAT) 

This field enables the user to enter the CoA invoiced VAT rate of the financial asset. In creation mode, this rate is entered, by default, using the value entered at the level of the DEFVATRAT - Default VAT rate parameter.
If the asset is created via the capitalization of expenses, the displayed rate is taken from the main expense. This has no particular significance: the invoiced VAT amount is not calculated but forced with the total of invoiced VAT amounts of the attached expenses.