Tax Services
Washington, DC
As one of the top accounting firms in greater Washington, D.C., Withum adds value to corporations and nonprofits alike, helping them thrive by offering comprehensive tax, audit and assurance services.
Our team can help you navigate shifting trends, maintain compliance and understand changing rules and regulations. Withum provides all the traditional accounting services the Maryland, D.C. and Virginia business communities require…plus a whole suite of advisory solutions that will level up your success. That’s the Power in the Plus!
(301) 272 6000
Washington, DC Service Specializations
Assurance and Accounting
Outsourced Accounting Systems and Services (OASyS)
Digital Workplace Solutions
Cyber and Information Security Services
Transaction Advisory
State and Local Tax Updates
Do you or your organization operate in multiple states? Do you own property in a variety of states? State and Local Tax (SALT) laws are always changing and understanding the nuances of the states that you own or operate in is challenging. In these DMV resources, you’ll find just a dash of the most up-to-date details on rules and regulations as state and local tax changes happen by state!
Industries We Focus on in Washington, DC
Beyond the Region
- Inside Public Accounting Top 100 Firms – 23rd Largest Nationally
- Accounting Today Top 100 Firms – 22nd Largest Nationally
- Great Place to Work® – Fortune Best Workplaces for Parents and Women
- Vault Top 25 Accounting Firm
Partner In Charge
Scott Reddersen, CPAScott Reddersen is the partner-in-charge of Withum’s Washington, DC and Baltimore, MD offices with over 17 years of experience serving high-net-worth families. His practice focuses on working with private clients in various industries including professional services, real estate, technology, and financial services. Scott works with families to understand their unique financial opportunities, challenges and goals. He helps them navigate current tax issues while developing long- term strategies that allow them to focus on what’s important to them.
Scott serves on internal committees focused on profitability and identifying future leaders in the Firm.
Scott has his CPA license in the state of Maryland. His work in the past has been with individuals regarding income, trust, estate and gift tax planning, as well as charitable planning and navigating equity-based compensation.
Leadership
Withum in the News
Withum Ranked a Top 20 Firm Among 2026 IPA 100 Firms
The annual IPA 500 ranks the 500 largest accounting firms in the United States by net revenue using data submitted through the IPA Practice Management Survey. A Growth Strategy Guided by The Withum Way Withum’s rise into the Top 20 reflects purposeful investment. As an independent, owner-operated firm, Withum has the flexibility to make long-term investments that support sustainable growth while maintaining its culture and deepening client relationships. Innovation Helping Drive Client Value Technology continues to reshape the accounting profession, and Withum remains focused…
Robin Kim Joins Withum Capital as Managing Director of Investment Banking
Robin brings more than 20 years of investment banking and principal investing experience, advising founder-led, family-owned and privately held companies. Throughout his career, he has advised on transactions exceeding $30 billion in aggregate value, including M&A transactions, leveraged buyouts, recapitalizations, restructurings and debt and equity financings. His experience spans a broad range of industries, providing…
Chelsie Rabon Named 2026 Next Generation in Accounting Winner
Chelsie is a leader in Withum’s San Ramon, CA, office, where she specializes in audits of employee benefit plans, labor organizations and multiemployer benefit plans. She was recognized for her dedication to clients, technical proficiency and ability to help organizations address audit and compliance requirements. Chelsie is deeply committed to fostering the next generation of…
Los Angeles Business Journal Names Two Withum Partners as Top Advisors in the San Fernando Valley
Chris Passmore and Steve Martini have made a lasting impact across the San Fernando Valley through their leadership, business advisory skills and community involvement. Recognized for helping businesses navigate change, create opportunity and drive growth, they have strengthened the region’s business community while contributing to its long-term economic vitality. Chris Passmore is the Partner-in-Charge of Withum’s…
Withum Names Eighteen New Partners
Introducing Our 18 New Partners
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