Invoice is a statement which contains the under mentioned details compulsorily. 1. Invoice Number 2. Invoice date 3. Name and address of the person Name and address of the person to whom invoice is made. ( Buyer of goods and service) 5. Description of goods / services involved 6. Applicable rates and taxes with percentages 7. Rate of the goods / services Quantity of the goods and services 9. Quality or any other specifications 10. Price / Value of the goods and services 11. Invoice must be signed by the person making it 12. Terms and conditions of making the payment