What should an invoice include to ensure all necessary information is provided for accurate billing and record-keeping?

An invoice should include the following information to ensure accurate billing and record-keeping:

1. Date of the invoice
2. Invoice number for tracking
3. Contact information for both the seller and buyer
4. Description of the goods or services provided
5. Quantity and price of each item
6. Total amount due
7. Payment terms and due date
8. Any applicable taxes or discounts
9. Payment instructions
10. Terms and conditions of the sale