C. Mark McClellan CPA, PC is one of the leading firms in the area. By combining our expertise, experience and the team mentality of our staff, we assure that every client receives the close analysis and attention they deserve. Our dedication to high standards, hiring of seasoned tax professionals, and work ethic is the reason our client base returns year after year.
Welcome to your Secure Client Portal. Here you can upload and download sensitive files securely.
All communications between our firm and the user are encrypted using the Secure Socket Layer (SSL). This is the same functionality used by banks and popular e-commerce services for secure communication. We also store your files encrypted when they are at rest on our servers, adding an additional layer of security. To protect against data loss, our servers are equipped with technology that automatically mirrors all data in real-time to two separate locations. Regular incremental and full backups of all system data are performed, including off-site data backups stored in two separate secure physical locations, to protect against almost all disaster scenarios.
Mark McClellan has been providing quality, personalized financial guidance to local individuals and closely held businesses since the 1980's. Expertise includes tax planning and compliance, accounting and QuickBooks support, financial advisory service and IRS representation/ problem resolution.
Mark McClellan is one of the leading firms in and throughout Atlanta. By combining our expertise, experience and a team approach, we assure that every client receives the close analysis and attention they deserve. Our dedication to high standards, hiring of seasoned tax professionals, and work ethic is the reason our client base returns year after year.
Our Mission
Our mission is to help clients maintain financial viability in the present, while taking a proactive approach to achieve future goals. This requires open communication to reach an understanding of our clients' needs through research and sound analysis. Mark McClellan is dedicated to meeting these goals with high standards of excellence and professionalism. We have been a staple of Atlanta's business community for years, and pride ourselves on the level of esteem we have earned.
Our dedication to hard work has earned the respect of the business and financial community in and around Atlanta. We believe this to be a direct derivative of our talent and responsiveness to our client base. Whether you are a current or prospective client, rest assured that individuals and businesses who choose Mark McClellan receive competent and timely advice.