Capstone CPAs Klamath Falls, Oregon Location

We go beyond tax preparation – we practice whole client financial wellness.

Working with us isn’t like walking into a pop-up tax preparer. We aren’t about the 1040EZ, but about easing your business into financial success. We partner with you to identify your unique tax DNA, strategizing high-impact business and tax decisions to cleverly craft a solid foundation for your future.



  • Auditing

  • Bookkeeping

  • Business Consulting

  • Divorce & Separation Services

  • Litigation Support Services

  • Payroll Services

  • Personal Taxes & Business Taxes

How to Find Us


422 S 5th Street
Klamath Falls, OR 97601
Phone: 541.882.6630

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Hours of Operation

Monday: 8am – 5pm
Tuesday: 8am – 5pm
Wednesday: 8am – 5pm
Thursday: 8am – 5pm
Friday: 8am – 5pm
Saturday: Closed
Sunday: Closed


Phone: 541.882.6630

Meet Our Staff

Dianne Spires

Dianne works with a broad array of businesses including governmental agencies,  not-for-profit organizations, manufacturing, wholesale, retail, real estate, professional, agribusiness and construction companies. Dianne serves her clients as a trusted business advisor, providing audit, tax, business consultation and management advisory services.

In addition, Dianne supports clients by providing federal and state tax compliance services and representing their interests during revenue agent examinations.

Dianne grew up in Klamath Falls and joined Rusth Spires’ predecessor firm after graduating from the University of California, Berkeley.  She was admitted to partnership in 1980.  In 1986 Dianne co-founded Rusth Spires and was a majority interest holder in the firm.

Dianne spends her free time enjoying Rocky Point and Lake of the Woods with her family.