“Don’t explain your philosophy. Embody it.” - Epictetus
Andreas Koller, CPA, leads GHJ’s International Tax Practice and brings more than 20 years of experience advising multinational companies, most of which are large, publicly traded organizations. Over the past few years, he has focused on serving middle-market companies and individuals with cross-border transactions and investments. A native German speaker, Andreas also leads GHJ’s International and German Desks, advising inbound German companies and U.S. businesses expanding into Europe, particularly Germany, Austria and Switzerland.
His specialties include entity structuring, IP planning, treaty analysis, repatriation, M&A tax diligence and transfer pricing coordination. Andreas helps clients improve tax efficiency, mitigate audit risk, support successful expansion and facilitate post-acquisition integration.
Before joining GHJ in 2023, Andreas served as Director of International Tax Planning at Expedia after more than a decade with Big Four firms, pairing technical depth with practical private-industry experience.
Andreas is a frequent speaker at HLB conferences and webinars and a member of the AICPA.
He earned a bachelor’s degree in Finance from Ludwigsburg University of Applied Sciences in Germany.
What is your role in the firm?
As the leader of GHJ’s International Tax Practice, I collaborate with my team to deliver exceptional value to global clients across industries.
Who is/was the biggest influence in your business life and how did s/he shape who you have become?
A certain partner early in my career. Not only was he a great teacher and mentor in tax technical subjects, but he was also an exceptional role model in how to be a trusted client advisor.
Describe the best thing about GHJ and why it matters to you.
The people and culture at GHJ are something that I identify with and value. It is what impressed me most about the Firm and is why I joined after years in private industry.
What makes you get up in the morning, and how does it impact your work style?
I enjoy learning, it is why I love this profession and working with clients in different industries. International tax is always evolving, requiring us to stay on top of legislative developments, understanding effects on clients’ businesses and finding sustainable solutions to those challenges.
What/who influenced you to join the firm, and how?
It was mostly the people that I met and how open, humble and respectful everybody I met was during the process.
Areas of Expertise
Fun Facts
Favorite place in the world:
Cornwall, England
Favorite music/band/singer:
Andrea Bocelli, Jack Johnson, Gary Moore, Alan Walker… it really depends on the day!
Favorite movie of all time:
The Godfather
One word that best describes me:
Curious
When I am not working, you will catch me doing this:
Sailing, mountain biking, hiking, exploring the Pacific Northwest and traveling with my family.
