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Auditors at CU Boulder

We are delighted you are interested in joining the CU Boulder community as an auditor. Auditing allows you the opportunity to attend university classes for no academic credit. Listen to lectures given by our world-class faculty and get more involved with the campus.

Community members age 18 and older, who are not registered students but wish to listen in on regularly scheduled lectures, are eligible to audit courses during the fall, spring, and summer semesters.

Senior Auditors Program Update

The Senior Auditors program, formerly offered by the CU Boulder Alumni Association, has been incorporated into Continuing Education’s Auditors program. Please refer to the Auditors enrollment page for information on how to register for courses and current auditor restrictions.

The Auditor Registration Form for the Fall 2022 semester will become available on August 1, 2022. You will be able to submit your registration form online starting August 1, but you must obtain and submit instructor permission once classes begin in order to complete the registration process.

Vaccination Requirements for Nondegree Students and Auditors

All nondegree students and auditors residing in the state of Colorado must complete CU Boulder’s vaccination requirements. Learn more about the vaccination requirements for nondegree students and auditors on the Health & Wellness Requirements page.

If you have questions about these requirements, please contact us at

Auditor Etiquette

Please remember that you are a guest in the class and should not participate in labs, testing, discussion groups, or presentations as these are activities for degree-seeking students.

Also keep in mind:

  • If you wish to complete assignments, verify the instructor has time to grade them (no academic credit is available).
  • Arrive to class on time.
  • Please stay until the end of the class.
  • Remember that faculty reserve the right to exclude individual courses from the Auditors Program.

Auditor Registration

In-person and hybrid in-person classes offered by CU Boulder main campus as well as CE Evening Credit classes*, and CE online section 58X classes are eligible for auditing as part of the Auditors program during the fall, spring, and summer semesters.

Auditors may search classes using the CU Boulder Class Search.

*CE Evening Credit classes are not offered during the summer.


Auditors must be formally included on the roster for the class(es) they will attend. To register as an auditor, submit the Auditor Registration Form (available August 1). Starting the first week of classes, obtain instructor approval via email or a physical form and submit the appropriate documentation online (once you have completed registration, an email detailing next steps on how to obtain and submit your instructor approval will be sent). If you have questions about this process, please contact the Enrollment Services Team at

An auditor may not switch from being an auditor to enrolling in a course for credit within the same semester. Community members interested in learning more about taking courses for credit should contact an academic advisor.

Dates and Deadlines

Current degree students receive priority during open enrollment and auditors will not be added to any waitlist or enrolled above classroom fire code restrictions even with instructor permission.

Although auditors may attend classes during the first two weeks of the session to ask professors for permission to audit the course, enrollment will not be official until the auditor submits their enrollment form to Continuing Education (1505 University Avenue) after the last official day to add a course (see the ACCESS Academic Calendar for specific dates).

Fall 2022

The Fall 2022 Auditors application opens on August 1. To search for courses, please visit the CU Boulder Class Search.

Noncredit auditors are unable to attend some restricted courses. Learn more about enrollment restrictions.


Payment is due after successfully submitting instructor approval. Auditors under the age of 55 pay a flat rate of $250.00 per term regardless of the number of courses they have permission to attend.

For auditors ages 55 and older, a flat rate of $80 per term applies to CU Boulder alumni, and a flat rate of $95 per term applies to non-alumni. There are no additional course fees charged to auditors.

You can pay for your course after you receive your enrollment confirmation email. There are two ways to make a payment:

  • Pay online*. You can access online payments via Buff Portal via the Tuition & Fees card. Click on Balance Summary, then View/Pay Bill, which will direct you to CU Bill&Pay, the university’s secure online billing and payment system.
  • Pay in person at the Continuing Education building (1505 University Avenue) with credit card*, check or cash.

*You will be assessed a nonrefundable 2.85% service fee for credit card payments.

There is no refund and no opportunity to petition for a refund. Additionally, auditors are not eligible for financial aid, scholarships, or payment plans.

Call us at 303-492-2212 if you have any questions.

Auditor Restrictions

Participants in the Auditors Program must be over the age of 18 and not be registered as either a degree-seeking or nondegree student at CU Boulder. Auditors are not considered students and do not receive the same privileges as enrolled or nondegree students. Registered auditors receive class instruction, access to the online learning management system, and library privileges only. Acceptance to the University of Colorado Boulder as an auditor does not guarantee eligibility for regular degree or nondegree status. To enroll in CU Boulder courses for credit as a nondegree student, please visit the New Visiting and Nondegree Student page.

Admitted students, either enrolled or suspended, may not attend courses as an auditor. If an admitted degree student is interested in participating in a class without receiving credit, the student must enroll in the course for no credit. Courses taken for no credit are assessed the same tuition rate as courses taken for credit.

The following classes are not available to auditors:

  • Any class that exceeds room fire code capacity, or is waitlisted
  • Participatory courses (voice, choral, dance, painting, ceramics, computer, theater, photography, musical instrument, studio film etc.)
  • Cinema Studies studio courses and CINE/FILM 2000 – Foundations 1
  • Continuing Education Online Flex course sections (64X)
  • Graduate-level library courses
  • Honors Program courses
  • HUMN 4135 and HUMN 4011
  • ECON 4797
  • International Affairs senior seminar courses (IAFS 4500) and any fully enrolled IAFS course
  • First-year law courses (e.g. all LAWS 5000- & some 6000-level) and all law school seminars (any LAWS 8000-level course)
  • BUSM, BCOR, and all graduate-level Business courses (ACCT, BADM, MBAC, MBAX, MSBC and MSBX)
  • History undergraduate seminar courses in 3000s and HIST 1800
  • All Computer Science Post-Bacc (CSPB Courses)
  • Foreign language courses, including Spanish, Chinese, Japanese, Arabic, Korean and Hindi
    NOTE: Community members may access language courses through the Anderson Language and Technology Center (ALTEC)

Contact us for more information at or 303-492-5148.

Auditor Transcripts

There is no credit for audited courses nor are auditors eligible to petition for credit at any time.

Auditors can view and print an unofficial copy of their transcript through Buff Portal, the campus student portal, or request a hard copy through the Office of the Registrar.

Au pairs enrolled through the Community Auditor program may obtain letters of enrollment verification by contacting at the end of the semester.

Note: To view an unofficial transcript of audited courses in Buff Portal, search for the transcript card and be sure to change from “All CU Careers” to “Noncredit Career.”

Buff Portal and Identikey

Buff Portal is CU Boulder’s online campus portal. It gives you access to view your course enrollment, book lists, campus announcements, and more.

You’ll need an Identikey, or a unique username, to log in to and access Buff Portal. Use your student identification number to activate your IdentiKey at

If you have questions, contact us at or 303-492-5148.

Now that you’ve selected your favorite Continuing Education courses, email or print the information, including class number, to more easily search Buff Portal and enroll. Still have questions? Contact an advisor.


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7:30am to 4:30pm


We are located at the corner of University Avenue and 15th Street in a white brick building.


1505 University Avenue
University of Colorado Boulder
178 UCB
Boulder, Colorado