We've logged thousands of miles and experienced every kind of route and mode of travel.

About Us

Set your course with Plus Minus.

Navigating the world of finance, tax law, and accounting can be overwhelming. At Plus Minus we understand these challenges, and look to being a navigational tool for our clients. Think of us as a GPS for your finances and your business.

We combine accuracy, forethought, technology and strong communications to create precise results for our clients. For us, it's not about "coming close," or "almost making it." It's about making sure you reach your stated goal.

Every detail matters

Just as you expect any navigational tool to take you to your desired destination, you can count on Plus Minus to do the same for your finances. We delve into the gears of your tax situation, dig into the details of your returns, pinpoint your accounting-related needs, and stay ahead of tax changes while keeping our eyes on the horizon.

Our professional services run the gambit, including proactive tax planning, Quickbooks administration, tax preparation, and consulting, each delivered with accuracy and effectiveness. Our goal is to make sure you're in position to arrive where, when, and how you want.

  • “I started Plus Minus 20 years ago with the intention of combining accuracy, forethought, technology, and strong communications to create precise results for my clients. The results are happy clients.”

    STEPHAN SYKES

  • “Live life with kindness and knowledge.”

    JAILEENE EUBANKS

  • “I have been using Plus Minus Accounting for about 20 years for my personal and business, and I wouldn’t use anyone else. They have saved me thousands of dollars. I highly recommend them.”

    TONY F.

  • “If you want it done right, come to Plus Minus and they will take care of you.”

    ANDY K.

  • “Steve Sykes has been my CPA since I opened my business in 1999. Steve and his staff are great to work with and are always available to answer my questions. I highly recommend them!”

    DAVID H

History & Milestones

The original journeyman.

Stephan P. Sykes founded his accounting firm in September 1995. By then he’d spent a decade in the field, and while he was grateful for the professional experience and mentoring he received, he was ready to launch out and offer his own brand of services throughout the Greater Portland area.

In 2007, Sykes decided to relocate the business a few miles southeast to Oregon City. While still working with many clients in and around downtown Portland, as well as the western suburbs, the move provided an opportunity to expand his client base as well as his services.