Section
4: Due date of tax
Article
22: Due date of tax
The
tax is due at the date of supply of goods and
services. If, before the date of supply of goods
and services, the price has been partly or wholly
paid, then the tax is due at the date of payment
based on the value of the amount paid. If, before
the date of supply of goods and services and
before paying the price, the taxable person issues
an invoice, then the tax is due at the date of
issuing the invoice. As for the imported
merchandises, the tax is due when the customs
duties become due according to the legislations in
force.