Another aspect of graphic design services that needs to be addressed when determining cost estimates for a project is contracted services. Many desktop publishing projects include outside contracted services not provided by the designer. Such services might include stock photography, offset printing, binding, lamination, direct-mailing services or advertising space costs. Because these are costs that should rightly be passed on to the customer, they must be included in an accurate project estimate.
A standard practice in the use of contracted services is to "mark up" the service slightly when invoicing a client. By adding a small percentage to the service costs, you can be sure any administrative leg-work required in securing the services is covered in your billing. For example, marking up the costs of contracted printing service can cover the costs of communicating with the printer on project specifications and reviewing proofs. By taking on the task of contracting these services directly rather than relying on the customer, a graphic design professional can have the tools necessary to make sure the project is completed to the standard expected by the client.