Rockville, MD CPA

Rockville, MD CPA Firm

About Us

At Monarch CPA Services we've grown our business by helping our clients grow theirs. We recognize that each client has unique goals and questions so we structure our QuickBooks services to meet those specific needs and provide good value and the right advice to our clients. Monarch CPA Services offers a complete range of QuickBooks consulting, set-up, training, and ongoing support services to businesses throughout the Rockville area including Aspen Hill, Redland, Olney, Gaithersburg, Wheaton, Potomac, Germantown, and more. We strive to help them save money, avoid mistakes, and free up more time to focus on managing their business.


Cara K. Mongelli, CPA (Katie)

We are honored by the trust and confidence our clients place in our advice and oversight. We continue working to earn your trust by staying abreast of accounting and tax law changes and by taking a proactive interest in the smooth financial management of your business.

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. She has acquired knowledge and expertise from years of work with every business class from entrepreneurs to large, publicly traded companies with millions of dollars in annual sales and locations in multiple states.

A partial list of client industries includes:

Katie is a member of the Maryland Association of Certified Public Accountants and the Virginia Society of Certified Public Accountants.