An Invoice is the definitive billing document issued by the Supplier to the Client. It specifies:

• the exact amount owed, and
• the date by which it must be paid.

An Invoice constitutes a legally binding request for payment.

An Invoice may be issued under the following conditions:

1. For Firm Commitments: following the Client’s Acceptance of Delivery, for the Amount Due.
2. For Flexible Commitments: following the Resolution in which the Commitment was processed, for the Amount Payable.

Depending on the nature of the Contract and Remuneration involved, an Invoice may take different accounting or legal forms (e.g. supplier invoice, payslip, dividend payout notice, tax notice).