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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Check out our COVID-19 Resource Center

With the pandemic still raging on, and new legislation being released frequently, our resource center can keep you up to date on important new laws, regulations, and tax benefits available to you. We have links to important resources with the SBA, IRS, and more.

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:

7 Coping Strategies for Volatile Steel Prices

The COVID-19 pandemic has disrupted steel supply and demand throughout the world. The problem was especially bad in the early months of the crisis. As the global economy and steel industry have reacted, steel prices have generally risen. Although prices are expected to stabilize at some point, contractors may still see occasional spikes. Here are…

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The Tax Score of Winning

Studies have found that more people are engaging in online gambling and sports betting since the pandemic began. And there are still more traditional ways to gamble and play the…

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Is the Research Credit Within Your Reach?

Many construction company owners might assume that a tax credit related to research and development is out of their reach. Au contraire — contractors can and have claimed the research…

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Rules for Charitable Gaming Activities

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Don’t roll the dice Gaming can seem like an appealing and low-cost option for boosting nonprofit revenues. But bingo, poker tournaments, raffles and the like are subject to some strict…

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We are proud recipients of the following awards and recognitions: