1. Reverse Charge Mechanism Note: Required when the reverse charge mechanism applies to the supply

2. Third Party Billing Information: Required when billing is done by a third party on behalf of the supplier

3. Delivery Details: Required when delivery address differs from the customer address

4. Purchase Order Reference: Optional field to include customer's purchase order number when applicable

5. Special Scheme References: Required when special VAT schemes apply (e.g., profit margin scheme)

6. Foreign Language Translation: Optional parallel translation of invoice details (must always include Arabic or English as primary)

1. Item Details Breakdown: Detailed listing of items when there are multiple items with different VAT treatments

2. VAT Calculation Sheet: Required for complex transactions involving multiple VAT rates or special schemes

3. Supporting Documentation Reference: List of supporting documents such as delivery notes or contracts when relevant to the supply