A free invoice template is a bill or statement of charges usually issued by a shopkeeper or dealer after receiving payment or as a proof of payment. It is an itemized list of charges about different products and services received by the customer. Many shopkeepers as well as companies issue an invoice for the acknowledgment of customers about the prices of different goods. It is also used as an evidence of a transaction received by the buyer. It is a professional document highly used in business field for the purpose of preparing a bill for purchased goods and services. There are many critical items such as electronic equipment. In this regard, a warranty or guarantee card also provides to the customer along with the invoice for the claim of any defect or occurrence of any dispute. Basically, an invoice is a brief piece of paper having details about different aspects of transaction such as company or business name, payment term, price or amount, date and time of transaction, address and contact information about shopkeeper or dealer, quantity of goods, per piece price and total amount of bill along with the signature of dealer. An invoice has a great scope in business field and is a key element of your success. You can get a record of your transactions through developing invoices for the customers.