February 23rd, 2010 by John Reeve

Now that you’ve drummed up some business as a freelancer, a web design and development shop, or a creative agency, it’s time to start collecting money owed. Billing clients is easily done with an invoice. If you use an accounting program like QuickBooks or an online project management application like Intervals, they will create an invoice for you. However, if you want to design your own invoice take a look at the example below along with the details of what should be included on an invoice. This design is based on a free invoice template from Adobe.

1. Your identity and address
   Include your logo and address in this space so the client knows who is invoicing them and where to send the check.
2. Date and Invoice Number
   The date is important as it tells the client when the invoice was issued. The invoice number is used by both the client and the designer to reference the invoice. Both of these fields are important for getting paid on time.
3. Client name and address
   This is usually the part you see sticking out the plastic window on the front of the envelope. Most invoices are sent electronically these days, however, this information is still important to avoid any confusion.
4. Terms
   These can be whatever you want them to be, though we recommend issuing all invoices as due upon receipt.
5. Purchase Order Number (optional)
   Useful if your creative agency commonly issues purchase orders. This field is rarely used in web design and development.
6. Project
   Include the project name to differentiate this invoice from one the client may have already received from another project. It is common to work on several projects for one client. This field helps simplify billing.
7. Line Items
   This itemized breakdown details what is being billed. In the case of this example, the invoice was for the total owed on a design and development time and materials maintenance contract. These line items could also include hours worked, milestone payments on a flat-bid, or project expenses.
8. Description(optional)
   A description of work can be useful for summarizing the invoice for the client.
9. Total Due
   The invoice total is the most important number on the invoice.