What auditing a course means and how it differs from taking it for credit
When you audit a course, you attend classes and do the work, but you receive no grade and no credit toward a degree. The course appears on your transcript as "audit" rather than a letter grade. You pay tuition (usually the same amount as a credit-bearing course, though some schools discount it), show up to lectures and discussions, and complete assignments—but the stakes are different. You are there to learn the material, not to earn a credential.
The main difference between auditing and taking a course for credit is what happens at the end. A credit-bearing course counts toward your degree requirements, affects your GPA, and appears on your permanent record as a grade. An audited course does not. Some schools allow you to switch from audit to credit (or vice versa) up to a certain point in the semester, usually the first week or two. Others do not allow switches at all, so you choose before you enroll.
Auditing is useful if you want to learn a subject without the pressure of grades, fill a knowledge gap before taking a harder course, or explore a field you are curious about. It is also common for people returning to school after a long break, or for professionals who want to refresh skills in their field.
Key Takeaways
- Auditing means attending a course and doing the work but receiving no grade or credit toward a degree.
- You typically pay the same tuition as a credit-bearing course, though some schools offer audit discounts.
- Most schools require you to choose audit or credit status before the semester starts, and switching between them may not be allowed.
- Professors may require auditors to participate in class discussions and submit assignments, or may allow them to attend lectures only.
- Check your school's audit policy before enrolling, because rules about switching, grading, and participation vary widely.
How to learn about a course can be audited
Not every course at every school can be audited. Some departments restrict auditing to certain courses, and some schools do not allow auditing at all. The first step is to check your school's course catalog or registration system. Most schools list audit status in the course description or in a separate section of the catalog labeled "Audit Policy" or "Course Audit Information."
If the catalog does not make it clear, contact the registrar's office directly. They can tell you which courses are open to auditors and whether there are any restrictions—for example, some schools allow auditing of introductory courses but not upper-level seminars. You can also ask the department that teaches the course. A department chair or academic advisor can tell you whether the professor allows auditors and what they expect from them.
Some schools require you to get permission from the professor before you audit their course. This is especially common in small seminars or graduate-level classes. If that is the case, email the professor before registration opens and explain why you want to audit. Most professors will say yes, but some may ask you to commit to attending every class or completing all assignments.
The enrollment process and what paperwork you need
Enrolling as an auditor is usually the same as enrolling for credit, except you select "audit" instead of "credit" when you register. In most schools, this happens in the online registration system at the same time you sign up for credit courses. You will see a dropdown menu or checkbox that lets you choose your enrollment status.
Some schools require you to fill out an audit form after you register. This form goes to the registrar and confirms that you are auditing rather than taking the course for credit. Ask the registrar whether your school uses a form, and if so, when it is due. Missing the important date can result in the course being recorded as a credit course instead of an audit, which affects your transcript and your GPA.
You will pay tuition at the time you register, just as you would for a credit course. Some schools charge the full per-credit rate; others charge a flat audit fee or a reduced rate. Check your school's tuition page or call the bursar's office to find out what you will owe before you register.
What professors expect from auditors during the semester
Professor expectations vary widely. Some treat auditors the same as credit students and require them to attend every class, participate in discussions, and submit all assignments. Others allow auditors to attend lectures only and skip the assignments. A few professors ask auditors to do some but not all of the work—for example, attending class and reading, but not writing papers.
The best way to know what your professor expects is to ask them directly, either before the semester starts or on the first day of class. If you got permission to audit before registration, the professor may have already told you. If not, send an email or speak to them after the first lecture. Be clear about what you can commit to: if you cannot attend every class, say so. If you want to do all the work anyway, offer to do it.
Some professors will ask you to sit in the back or to the side so you do not take a seat from a credit student, especially in a full class. Others do not care where you sit. A few may ask you to introduce yourself to the class on the first day. These are small things, but they show respect for the professor's classroom and make it easier for them to manage the course.
How auditing affects your transcript and academic record
An audited course appears on your transcript with the notation "AU" or "Audit" instead of a letter grade. It does not count toward your degree, does not affect your GPA, and does not satisfy degree requirements. If you later need that course to count toward a degree (for example, if you change majors), you will have to take it again for credit.
Some schools allow you to convert an audit to a credit after the semester ends, but this is rare and usually only if you did well in the course. Check your school's policy before you enroll. If conversion is possible, ask the professor whether they will give you a grade based on your work, or whether you will have to retake the course to get a grade on your record.
Audited courses do show up on your transcript, so they are visible to anyone who reviews your academic record—employers, graduate schools, or future schools. They signal that you took the course seriously enough to show up and do the work, even though you did not need the credit. This can be a positive thing if you are trying to show informed in a field, or if you are returning to school and want to demonstrate that you are ready for credit courses.
When switching between audit and credit status is possible
Most schools allow you to switch from credit to audit, or from audit to credit, during the first week or two of the semester. This window is usually the same as the period when you can add or drop courses without penalty. After that important date, your enrollment status is locked in.
To switch, go to your online registration system and change your enrollment status, just as you did when you first registered. Some schools require you to fill out a form or get permission from the registrar. If you are switching from credit to audit, there is usually no problem. If you are switching from audit to credit, the registrar may ask why, especially if you are late in the semester, but they will usually allow it.
If you want to switch after the important date has passed, contact the registrar and ask whether an exception is possible. Some schools will allow a late switch if you have a good reason—for example, if you got sick and missed too much class to do the work for credit. Others have a hard important date and will not budge. It is worth asking, but do not count on it.
Reasons to audit and when it makes sense for your goals
Auditing makes sense if you want to learn without the pressure of grades. This is useful if you are rusty in a subject and want to refresh your skills before taking a harder course, or if you are exploring a new field and do not want to commit to a full credit course yet. It is also a good option if you are working full-time and want to take a course but cannot may provide you will have time for all the assignments.
Auditing is also common for people returning to school after a break. Taking one or two audit courses in your first semester can help you get back into the rhythm of studying and attending class, without the risk of a bad grade if you struggle. Once you feel ready, you can switch to credit courses.
Some professionals audit courses in their field to stay current with new developments or to learn a specific skill. For example, a software engineer might audit a course on machine learning, or a nurse might audit a course on a new treatment protocol. The course does not count toward a degree, but it shows that you are committed to learning and staying up-to-date in your field.
Frequently Asked Questions
Can I audit a course if I am not a student at the school?
Some schools allow community members to audit courses, but many restrict auditing to enrolled students. A few schools offer community audit programs with separate registration and fees. Contact the registrar to ask whether your school allows non-student audits, and if so, what the process is.
Will auditing a course affect my financial aid?
This depends on your school and your aid package. Some schools count audited courses toward full-time enrollment status, which may affect your aid. Others do not. Ask your financial aid office before you audit, especially if you are on a scholarship or loan that requires you to be a full-time student.
Can I get a letter of completion or certificate if I audit a course?
Some professors will write a letter saying you completed the course and did the work, but this is not standard. A few schools offer audit certificates for completing a series of courses, but most do not. Ask the professor or registrar whether a letter or certificate is available.
What happens if I stop attending an audited course partway through?
If you stop attending, the course will still appear on your transcript as an audit. Some schools will mark it as "audit incomplete" or "AU-W" (audit withdrawal) if you formally withdraw. If you just stop showing up, it may appear as a regular audit. Contact the registrar to find out what will happen to your transcript if you withdraw.
Can I audit a course that is full or has a waitlist?
Many schools give priority to credit-seeking students, so auditors may not be able to enroll in a full course. However, some schools allow auditors to join a waitlist or to register after credit students have enrolled. Ask the registrar whether auditors can register for full courses at your school.