What is deemed to be a valid invoice in France to be used as expenditure under the Regime Simplifié?

The following is a list of elements which need to be on each individual invoice in order to make them valid, as required by the French tax office for the French property lettings:

1. Full details of the contractor
2. Full details of the client
3. The TVA number of the contractor when relevant
4. Date of delivery or issue
5. A unique invoice number
6. For each of the goods delivered or services rendered, the quantity, precise description, unit price
7. All discounts, reductions or rebates relevant to the transaction
8. The date on which the delivery of goods or provision of services is completed or the date on which any payment on account is made (to the extent that such a date is determined and different to the date different to the date of the invoice).
9. Full details on TVA applicable or, mention of any benefit of exemption.
10. The date the payment is due