The first TCCU branch opened in Taylorville, Illinois in 1956. TCCU was founded in the basement of a house to assist local business owners with their payroll. The credit union grew and began to require a small staff. In 1976, TCCU occupied the current building on West Main Cross, but the building was half the size as it is today. At that time, tables were used instead of desks to process paperwork and help members. The staff of 6 took turns waiting on members, compiling loan applications, and completing collection work. The building also had a one-lane drive thru.

Over the years the face of TCCU has changed, but the devotion to friendly and honest service has kept TCCU as an active and welcome member of the Taylorville community.