The 2025 legislative session introduced substantial changes to Washington’s Business & Occupation (B&O) tax, excise taxes, and tax preference programs. Whether you own a small LLC or operate a large enterprise, these new laws could directly affect your margins, tax obligations, and long-term planning.
At the Law Office of Theresa Nguyen, PLLC, we break down the updates and help business owners make sense of the numbers—so you can focus on growth.