Washington Department of Revenue

Jul 4, 2025

Access the Washington Department of Revenue here.

The Washington Department of Revenue is the state agency responsible for administering and enforcing tax laws in the state of Washington. They work to ensure compliance with state tax regulations and provide resources and support to taxpayers to help them understand and fulfill their tax obligations.

Agency Accounts

Washington Unified Business Identifier (UBI)

Access your online accounts:

The Washington Unified Business Identifier (UBI) allows you to set up and manage the following information:

  • Unified Business Identifier (UBI)

Review your compliance risks, free.

More from the blog

Learn how to keep your business compliant in all 50 states across payroll, HR, Secretary of State, and tax.

What Is SUI? State Unemployment Insurance FAQs

If you’re a stakeholder in HR, finance, or even the founder of a small to mid-sized company, you already know state compliance can get tricky, especially when it comes to fluctuating tax rates. With that in mind, let’s discuss state unemployment insurance, commonly abbreviated SUI. What Is SUI? State unemployment insurance, or SUI, is an employer-funded tax designed to provide short-term financial support to employees who have been laid off or terminated without misconduct.

Kaitlin Edwards | Nov 5, 2023

Texas Sick Leave Law 2024: An HR Guide for Texas Employers

Sick leave is an essential benefit. It lets employees rest and recover when they’re not feeling well. When your team can take time off to recuperate, they’re less likely to spread illness or experience burnout. After all, a well-rested employee is a productive employee. In this article, we’ll discuss sick leave laws in Texas in 2024, from public and private sectors to different leave types like parental leave. We’ll also share how Mosey can help manage state compliance.

Gabrielle Sinacola | Aug 17, 2024

Small Business Quarterly Taxes Compliance Guide (2024)

Most businesses will have to pay federal quarterly taxes, but how they pay them will vary depending on the business structure they utilize, how long they’ve been operational, and how much they believe they’ll profit each year. Here’s what small business owners need to know about quarterly taxes and how Mosey can help them stay on track with corporate compliance. How To Determine the Filing Requirements for Your Business Small business owners choose their business structure based on which tax advantages will be most helpful.

Alex Kehayias | Aug 5, 2024

Ready to get started?

Schedule a free consultation to see how Mosey transforms business compliance.