An invoice is a document or bill sent by a provider of goods and services to their customer. Invoices itemize the transaction and include payment amounts and terms. What does this mean for buyers and sellers? Invoices are a written agreement verifying the exchange between the buyer and seller, which establishes an obligation to pay on the part of the buyer. Invoices are often referred to as “sales invoices”, “bills”, or “statements”.

Sample Invoice

There are many types of invoices which vary slightly by industry and country (i.e. Commercial invoices will include product weight and dimensions to pass goods through customs). Traditionally, invoices were paper documents, but now are commonly sent electronically.

What does an invoice mean for buyers and sellers? Invoices are a written agreement verifying the exchange between the buyer and seller, which establishes an obligation to pay on the part of the buyer.

How do I make an invoice?

At Invoice Simple our goal is to make it as easy as possible to make invoices. Take a look at our invoice generator. It’s easy to use, very professional looking and printable invoices.

At a bare minimum, we’d recommend filling in your company name and your customer’s name. You can then add items to your invoice and the invoice generator will calculate the totals for you, including any taxes or discounts you’ve set up.

If you don’t know where to start, read our guide on making an invoice first.

Make your own invoice

sample invoice

If for some reason the invoice generator isn’t to your linking, you can download one of our invoice templates for Word, Excel, PDF or Google Doc. Each file has neat built in functions for calculating totals. Once you’ve downloaded the file you can modify it to your heart’s content!