Reston, VA CPA

Reston, VA CPA Firm

About Us

Government Contractor Accounting Specialist

Monarch CPA Services, is a Reston CPA firm providing consulting, DCAA audit support, outsourced accounting and tax solutions to all contractors of the Department of Defense (DoD) and other government agencies.

We strive to help our clients understand how to navigate the complex and often confusing regulations imposed on businesses who want to do business with government agencies.  We can help you prepare for a DCAA audit; work with you to set up, maintain and track projects properly; and implement an accounting system that is in full compliance with requirements of DCAA and FAR. We have a reputation for developing a strong, personal relationship with all our clients so we fully understand your business goals and help you achieve success.  

We’re glad you stopped by to learn more about us. We look forward to talking with you. Give us a call at 703-995-5522 and let us know how we can help you. There is no cost or obligation for the introductory consultation.


Cara K. Mongelli, CPA (Katie)

Katie became a licensed Certified Public Accountant after receiving her Bachelors of Science from Saint Michael's College in Burlington, Vermont. She began Monarch CPA Services in 2005.

Throughout her career, Katie has provided accounting and tax services, business advice, income tax reduction advice and financial management/consulting services for a large number of businesses including government contractors.

She has acquired DCAA compliance knowledge and expertise from years of work with businesses competing for government contracts. Katie also completed the Accounting with the  Federal Government program at George Mason University.

Katie is a member of the Maryland Association of Certified Public Accountants. Katie is also an active member Gaithersburg-Germantown Chamber of Commerce.

We offer a free initial consultation by calling 866-441-5044. There’s no obligation, so give us a call and let’s discuss how we can help you meet your financial goals.