Public Accountant Society of Colorado Welcome. The Public Accountants Society of Colorado is a nonprofit membership organization founded in 1948 that provides tax and accounting seminars in areas such as Corporations Partnerships LLCs 1040 Individual Income Tax Updates and specialty topics such as Medicare Social Security Fiduciary 1041 and Federal Estate Forms 706 and 709. We also provide public policy education professional networking opportunities and other services to members and nonmembers. PASC serves public accountants including tax preparers certified public accountants accounting educators and students enrolled agents certified financial planners accredited tax preparers and advisers RTRPs and other financial professionals.