Founded in 1977, The Old Tax House began with little more than a calculator, a few pencils and a sincere desire to provide quality income tax preparation and accounting services with exceptional customer service. With persistence, hard work, and the best staff in the business, the company grew to become the largest tax office in O'Fallon, Missouri. Assisting our customers with a high level of pers
onal service is our trademark. 45 years later, we’re still committed to those same ideals and are very proud of the company we've become. All of us at The Old Tax House would like to say a heartfelt, Thank You, to our clients.