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About our firm

Background
Since 1984, our firm has been providing quality, personalized financial guidance to local individuals and businesses. Our expertise ranges from basic tax management and accounting services to more in-depth services such as reviews, compilations, financial statements, and financial planning.

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, thorough research, and sound analysis. Our firm is dedicated to meeting these goals with high standards of excellence and professionalism.


Our Team

Bill Tierney
Bill Tierney is the owner of this firm. He has been practicing in his own firm for 20 years. He has built up significant experience in small business planning and tax compliance. Bill is a member of the American Institute of Certified Public Accountants and the Missouri Society of Certified Public Accountants. He received his undergraduate degree from Washington University and his accounting degree from the University of Missouri, St, Louis.
Bill@tierneycpa.com     314-994-3333


Sharon Stinson, Enrolled Agent
St. Louis Office
sstinson@crs1040.com     314-994-3333


Marilyn Roseberry, Enrolled Agent
St. Louis Office
mroseberry@crs1040.com     314-994-3333


Tracie Allen
Edwardsville, Illinois office
Tracie@tierneycpa.com     618-692-0226


Bill Mannen
St. Louis, Missouri office
Wmannen@tierneycpa.com     314-994-3333