One Source Accounting & Tax is a full-service CPA firm where the success of our clients is our primary goal. One Source was started in 2008 to provide affordable accounting services to the community without sacrificing quality or reliability. We are dedicated to providing our clients with professional, personalized services and guidance in a wide range of financial and business needs.

We are a locally owned and operated firm in Clarksville, Tennessee. The owner of One Source Accounting & Tax, Mark Davenport, CPA, has over 20 years experience in public accounting working with individuals, businesses, local governments and nonprofit organizations.

Our office is located on the second floor of the former First Horizon Bank building downtown at 25 Jefferson Street, Suite 200-B. The office hours are Monday through Friday 8:30 – 4:30.