TIU is the only university affiliated with Evangelical Free Church of America in the United States and enrolls 1,242 students.

On February 17, 2023, TIU announced it was moving the undergraduate program to online modalities only and closed the residential campus at the end of the Spring 2023 semester.

[13] The normative nationwide USDE- and CHEA-approved accreditor of law schools is the American Bar Association (ABA).

Within the state of California, though, law schools are also accredited by CALBAR CBE, which is neither USDE- or CHEA-approved.

TIU's undergraduate athletic training educational program[20] claims CAATE accreditation on its website.

[23] Prior to the move to an all-online undergraduate academic format in 2023, the university was a member of the National Association of Intercollegiate Athletics (NAIA), primarily competing in the Chicagoland Collegiate Athletic Conference (CCAC) for most of its sports from 1996–97 until its move after 2022–23; while its football program competed in the Mideast League of the Mid-States Football Association (MSFA).

[23] They were also a member of the National Christian College Athletic Association (NCCAA), primarily competing as an independent in the North Central Region of the Division I level.