Founded in 1980, The Association of Chartered Accountants in the United States ("ACAUS") is a nonprofit professional and educational organization dedicated exclusively to represents the interests of over 6,500 Chartered Accountants who reside in the United States.

Chartered Accountants who are members in good standing of the following Institutes, collectively the “Home Institutes”, are automatically members of ACAUS: 

Canadian Institute of Chartered Accountants	New Zealand Institute of Chartered Accountants	Institute of Chartered Accountants in England and Wales	South African Institute of Chartered Accountants
Institute of Chartered Accountants in Ireland	Institute of Chartered Accountants in Australia		Institute of Chartered Accountants in Scotland