Washington Invoice Instruction Sheet is an important document in the state of Washington that provides instructions to businesses and other entities on how to properly create and submit invoices for payment. This sheet outlines the information that must be included on the invoice, such as the name of the customer, the amount due, the payment method, the terms of payment, and the due date. It also provides guidance on how to properly format the invoice and where to submit the completed document. There are two main types of Washington Invoice Instruction Sheet: the Department of Revenue and the Department of Licensing. The Department of Revenue's sheet includes instructions for filing sales tax, business and occupation tax, and other taxes. The Department of Licensing's sheet provides instructions for licensing employees, registering business names, and other licensing requirements.