Accounting Firm - Seattle CPA Firm

Tax Manager Lori Blair

Seattle Public Library

Audit Manager Ben Altmaier

Audit Manager Jerad Daley on the Bainbridge Island Ferry

Peterson Sullivan offices located at Two Union Square

Celebrating 60 Years

Peterson Sullivan LLP is a premier certified public accounting firm serving the Seattle, Bellevue, Tacoma, and Everett, Washington areas and beyond.

Learn more about how Peterson Sullivan clients have experienced "Confidence Earned"

Thought Leadership

Take a peek at the latest from our team of experts. Learn about emerging industry trends, access regulatory updates, and discover what's coming in 2013 and beyond.

Special Events Insurance - Nonprofit Events

To raise funds, nonprofits often turn to large-scale special events, which can prove lucrative but also carry significant risks. Proper insurance coverage will help protect your organization from those risks. Read more.

Health Care Coverage Doesn't Have to be Taxing

The Patient Protection and Affordable Care Act of 2010 contains some potentially costly tax provisions affecting businesses. This article focuses on the shared responsibility, or “play or pay,” provision. Read more.

Disabled Veterans Receive Sales Tax Exemption

In the regular session of the state of Washington 2013 Legislature, SSB 5072 was passed and signed by Governor Jay Inslee. The new law gives a break to disabled veterans and certain active duty personnel. Read more.

April 15th Has Passed - Now What?

With the 2012 tax filing season behind us, it's time to start thinking seriously about 2013 tax planning - especially if you're a higher-income. Read more.

Industries and Services

Obamacare Reform - Washington CPA FIrm

Health Insurance Premium Tax Credit - "Play or Pay" Penalities

The IRS has issued proposed regulations implementing the health insurance premium tax credit created by the Patient Protection and Affordable Care Act of 2010. Read more.

Correcting 403(b) Plan Errors

The IRS recently issued new guidance (Revenue Procedure 2013-12) which allows 403(b) plan sponsors to address compliance failures through them (EPCRS). Read more.

International-Services

International Services

Every Seattle company conducting international trade requires the assistance of a qualified firm to help navigate the complex IRS and foreign income tax regulations. Read more.

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Moore Stephens

Peterson Sullivan LLP is an independently owned and operated member firm of both the Moore Stephens North America (MSNA) association of member firms and the Moore Stephens International Limited (MSIL) network of member firms. Neither MSNA nor MSIL provide services to clients. Peterson Sullivan is a separate and distinct legal entity, subject to the laws and professional regulations of the jurisdictions in which it operates, and is not authorized to obligate or bind MSNA, MSIL, or any other member firm of MSNA or MSIL. Peterson Sullivan is liable only for its own acts or omissions and not those of any other person or entity including MSNA, MSIL and other member firms of MSNA and MSIL.

Auditors | Tax | Advisors - Peterson Sullivan is a Certified Public Accounting firm serving companies and high net worth individuals in Seattle (WA), Tacoma (WA) and Bellevue (WA). Our expertise extends to SEC registrants, dealerships, life sciences, real estate and technology companies. We also provide services to nonprofit organizations across the Puget Sound area.