Partnering With You for Your Success

Your success is our goal.  At Thompson Greenspon we offer award-winning service and pro-active solutions, customized to meet your specific tax, audit, accounting and consulting needs.

Personal relationships are important to us. Since our founding in 1956, the firm has advanced the goal of having you work with the same dedicated team members year after year.  As one of the largest CPA firms in the DC metro area, we deliver industry-leading expertise that is competitive with national and regional firms.

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We've complied some valuable resources to help you navigate through this difficult time.

Industries we have specialized in since 1956:

Whether you need estate or succession planning, or accounting, auditing, or tax assistance, Thompson Greenspon can help you succeed.

Whether you are looking for assistance with your overhead rate, an audit of your financial statement, or with day-to-day accounting services, we can assist you.

While you focus on supporting your mission, let our tax advice and creative solutions help you achieve your financial goals. 

When you need help with tax or business planning, draw on our decades of expertise. While you serve your clients or patients, we will take care of your needs.

Click below to be put in touch with a CPA who specializes in your industry.

Our Services Include:
TAXES

Tax Center

Planning ahead and saving you money on income taxes, trust and estates, payroll, and more.

FINANCES

Financial Reporting & Assurance

Offering a wide range of assurance services, audits and business assistance.

CONSULTATION

Advisory Services

Expert guidance when you start a business, sharpen your strategic plan, or plan for succession.

ACCOUNTING

Outsourced Accounting

Focus on your big goals, not your bookkeeping. Don’t think twice about payroll, taxes, financials, and more.

EMPLOYEE BENEFITS

Employee Benefits Planning & Audits

By listening closely to your needs, we can help you ensure you have a solid plan in place and assist you by auditing your plan to meet regulatory requirements.

Industry Insights:
tax tips

March/April 2020 Tax Tips

Businesses: It’s time to revisit your sales tax obligations It’s been more than a year and a half since the U.S. Supreme Court ruled in South Dakota v. Wayfair that states may require out-of-state sellers to collect sales and use tax even if they lack a physical presence in a state. Since that time, most…

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Thompson Greenspon Earns 2019 Best of Accounting ™ Award for Client Service Excellence
FAIRFAX, VIRGINIA – OCTOBER 17, 2019 – Thompson Greenspon, a leading accounting firm, announced today that they have won ClearlyRated’s Best of Accounting™ Award for providing superior service. Best of...
FASB Simplifies Merger Accounting for Nonprofits
The Financial Accounting Standards Board (FASB) recently issued guidance that should ease the financial reporting burden on nonprofits that enter “business combinations,” such as mergers and acquisitions. The title of...
Would You Recognize an Indirect Cost if You Saw One?
Indirect costs can have a substantial impact on a construction company’s financial picture and bottom line. But they’re not always the easiest things to “see.” Let’s zoom in to bring...
We are proud recipients of the following awards and recognitions: