Expert Portland Accounting Firm

Combining traditional values, cutting-edge technology, and first-class service.

A great Portland accounting firm is hard to find. Don’t trust just anyone. You need an experienced, progressive, cutting-edge accountants. Opsahl Dawson is the answer! We’ve served businesses and individuals in the Portland metro area for over three decades. Our tax and accounting solutions are innovative and designed to help you succeed. We work on your behalf throughout the entire year, not just during tax season.

At Opsahl Dawson, we combine traditional values with advanced technology. We started working in the Portland area in 1979. Since then, we’ve constantly improved and refined our services. If you’re looking for an accounting firm that’s in it for the long haul, put your trust in Opsahl Dawson.

Our Accounting & Tax Services in Portland, OR

Portland CPA Aaron Dawson


Our Portland accounting office will work with you to create a tax plan that minimizes your tax liability and maximizes your deductions. We’ll also keep you updated on any changes to tax laws throughout the year.

Learn More >


If your business is planning an acquisition or merger, we can help. The M&A experts at Opsahl Dawson will work alongside your legal team. Together, they’ll make sure your business goals are met and you’re happy with the results.

Learn More >


Building an estate takes a lifetime of hard work. Let Opsahl Dawson’s estate planning team help you preserve your estate, avoid unnecessary tax liabilities, and help you feel confident about the future.

Learn More >


Are you thinking of starting up a new business? If you’re confused about the differences between corporations, LLC’s, partnerships, or sole proprietorships, we can help. We’ll explain the differences and the advantages (and disadvantages of each). Together we can make a decision that supports your long-term business goals.

Learn More >


National accounting firms just don’t always fully understand the state and local tax laws in Portland. Our local Portland tax accountants do. We’ll help you understand your tax requirements, minimize liabilities, and save you money long term. We’ll be your guide in navigating state and local taxes.

Learn More >


An IRS audit (or even just a letter from the IRS) can be stressful, overwhelming, and confusing. Don’t go it alone. You’ll need a team of experts to look out for your best interests. Our IRS accountants and audit experts can represent you and work with the IRS to resolve any situation.

Learn More >

Bookkeeping & Other Services

At Opsahl Dawson, we offer a wide variety of other accounting services, including:

  • Bookkeeping
  • Outsourced Controller
  • QuickBooks Pro Advisors
  • Cash Flow & Budgeting Analysis


Need help compiling, reviewing, or analyzing your financial statements?

Our Portland accounting firm would love to help!

Learn More

Ready To Learn More?

Our Portland accountants are here to help you!

“Managing my business while raising a family can be stressful enough. Then there is tax season! Opsahl Dawson erases that stress with a streamlined process embodied by a particular attention to detail. Yet, it is trust and friendship gained that will lead us back to their office for years to come.”

Dominik Staros – Owner, Image Web Consulting

About Opsahl Dawson

Certified Public Accountants Portland OR

Opsahl Dawson is home to what we call “accounting for a new age”. The world is evolving faster than ever, and we help businesses and individuals in Portland adapt. We’ve built a progressive team with old-fashioned values. We empower them with the latest high-tech tools. This allows us to help you stay ahead of changing tax laws and other financial developments.

We only hire the very best. You’ll love working with our friendly accountants and staff. They’re hip, innovative, and always on their toes.

Together, we make the perfect team dedicated to your success!


Can tax and accounting services really help my business grow?

Absolutely! Your accounting firm should always be thinking about your future and your best interests. The team at Opsahl Dawson takes the time to get to know you and your needs. This helps us develop a comprehensive, holistic approach to your financial growth. Remember, your success is our success.

Are you a paperless accounting firm?

Yes. Paperless methods actually result in more streamlined, more effective work. Paperless accounting saves you time and money, and help keeps the planet happy, too!

Why should I choose Opsahl Dawson?

We’re in it for the long haul. Our entire team focuses on delivering real results for you and your unique goals. We bring the best of both worlds: decades of experience with a drive for innovation.

Our team is always growing, learning, and exploring new technologies and sustainable business practices to expand our services and better meet your needs. Plus, we love what we do. And it shows. We can’t wait to come to work in the morning.

Get In Touch

Find out how Opsahl Dawson can help you with all your accounting needs in Portland.

Call (360) 737-8007 or contact us online to get started.