Washington Sales Tax Guide

A step-by-step guide to understanding Washington sales tax rules.


Collecting sales tax in the state of Washington can be complicated. However, if you're selling taxable goods and have a connection with the state, it's likely you are legally required to file sales tax returns. Our Guide to Washington Sales Tax can help you get set up and compliant.

I would rather automate my Washington sales tax filing

Table of Contents

An Overview of Washington Sales Tax

Understanding where, when, and how to collect Washington sales tax is no easy task. Whether you're collecting tax dollars at the point-of-sale or collecting Washington internet sales tax, our guide will break down the sales tax compliance process into focused, easy to understand chapters.

Washington Sales Tax Nexus

Understanding whether you need to collect, file, and remit Washington sales tax depends on a concept known as nexus. In this chapter, we'll take a look at situations that may trigger in Washington such as storing inventory in the state, hiring state residents, and click-through nexus.

Registering to Collect Washington Sales Tax

You'll want to get started establishing Washington sales tax compliance by understanding how to get your business registered for the necessary sales tax permit. We'll walk you through the process and help you understand when is the best time to get your business registered in Washington.

Collecting Sales Tax in Washington

After you've registered your business with the Washington Department of Revenue, you're ready to begin collecting sales tax. We'll review topics such as Washington sales tax exemptions, sales tax holidays, and determining state and local sales tax rates.

Filing Washington Sales Tax Returns

Now that you're business is registered with the Washington Department of Revenue and collecting sales tax, you'll need to file tax returns in an ongoing basis. We'll help you gain a deep understand of the process of filing sales tax returns. Topic covered include filing frequencies, filing on behalf of a client, and what happens if you file late.

Washington Sales Tax Filing Due Dates

Every business that registers to collect Washington sales tax will be assigned a filing frequency. In this chapter, we'll take a look at the filing frequencies and associated due dates supported by the Washington Department of Revenue.

Late Filing Penalties, Fines & Interest

We know, mistakes happen and, from time to time, sales tax filing deadlines are missed. In this chapter, we'll take a look at what penalties you may be required to pay should you miss your assigned Washington sales tax filing date. We'll also consider interest charges for late sales tax payments.

Sales Tax on Washington Shipping & Handling

The rise of the internet economy has made it possible for buyers around the world to order your products. Did you know shipping and handling may be taxable? In this chapter we'll cover sales tax on shipping and handling in Washington. You'll want to pay attention here because there are some important details pertaining to invoicing you'll want to understand.