Enable the entry of statistical and monetary values by setting the System Profile Journals:Mix Statistical and Monetary to Yes

Define a dummy Self Invoice Supplier

Define the statistical unit of measure to assign to the account(s) on which the self invoice VAT are entered. This definition is done by General Ledger using the normal setup option (Setup > Accounts > Unit) and this unit of measure should be the functional currency of the set of books (for example, Lire)

Define one or more Tax names with Tax type Self Invoice, on which the Purchase VAT account amounts are entered

Define one or more Tax names with Tax type Offset on which the Sales VAT account amounts are entered

The use of a Tax name based on the Tax type Self Invoice allows Oracle Financials to correctly enter the transactions on the VAT Registers (determining the taxable value on the basis of the content of the field Statistical Amount) and on the Libro Giornale (only the VAT amount is entered)

To enter a self invoice you can enter a normal invoice against the Self Invoices supplier. The amount to enter in the first zone of the field Invoice Amount is 0.

In this way you have access to the invoice distribution. In the Tax distribution line enter the VAT amount. On the same line, enter the More field and choose the detail option of the list of values. In the Invoice Distribution Detail zone, the statistical unit of measure will already be determined, so you will need to enter the taxable amount of the self invoice in the field quantity (Qty).

Another VAT line will have to be included having negative amount and relative to the transactions of sales VAT account (entering the Tax name previously defined as taxable type offset).

For the same invoice, you will have to enter a document category of Self Invoice. This is entered in Invoice Voucher zone. This allows the entry of the self invoices of this document on the VAT Subledgers (Purchases Self Invoices and Sales Self Invoices) as envisaged by the procedure.

The entered invoices, during the approval, are placed on two holds. These can be released through the standard function of invoice approval.

This procedure should be repeated periodically to clear the self invoices.