Course Enrolment

What Would You Like to Learn More About? 

What You'll Need: 

You will use ACORN to access course enrolment, academic history and grades, program enrolment, view your fees, access tax forms, maintain your student information up to date and correct, and more!

Each course has a unique course code and course description. Familiarize yourself with how to understand them. 

Course Enrolment on ACORN

ACORN is used by all University of Toronto students. You will use it to enrol in courses, view your transcript and final grades, review your financial invoice, update your contact information (address, email, bank information, emergency contact information), and much more! 

To login to ACORN, please use your JOINid/UTORid and password. New students can use their JOINid to use ACORN, and will receive instructions on how to activate their UTORid at the TCard Office once they have their photo taken for their student card. 

Returning Students or Alumni 

If you have forgotten your UTORid or password, please visit for online self-service. You may also visit the I&ITS Help Desk for assistance.

Alumni who were not issued a UTORid during their former studies can use ROSI to request transcripts and reset their PIN. If you plan to return to your studies at U of T, and were not previously issued a UTORid, please activate and manage your UTORid with the support of our TCard Office

Your Course Enrolment Start Time

Your start time is determined by your year of study. Your year of study is defined by the total number of credits you have earned, or expect to earn, by the end of April for the Summer session, or August for the Fall-Winter session.

Degree students can view their personal course enrolment start time on ACORN by clicking "Enrol and Manage" from the Academics menu option.

Which Courses Should You Take?

Use the U of T Mississauga Academic Calendar to explore programs of study (specialist, major, minor) and degree requirements along with course descriptions.

More information is available on program websites and from department advisors. Consider your strengths, interests and desired program/ career goals. 

Planning Ahead

  • Use the Timetable Planner to create a sample schedule.
  • You can add these to your ACORN enrolment cart, where they will remain saved. Please note that saving courses to your enrolment cart does not add you to the course - you'll have to log back in to ACORN when your start time begins and click "enrol" for each one.
  • You are responsible for checking prerequisites, corequisites and exclusions, which are listed in the Academic Calendar for each course, before enrolling in courses. 
  • If a course has an enrolment control, read the instructions carefully to understand whether you are eligible to add a course right away.
  • If you have questions about your courses, and how to plan your upcoming session(s), please visit the Office of the Registrar.

Transfer students

Depending on the number of transfer credits that you have been awarded, you may be selecting courses as a first year, second year, or third year student. 

If you do not yet have your transfer credit assessment, please refer to the Year Level indicated in your offer of admission. Once you have your transfer credit assessment, please go by the number of transfer credits you have been awarded. Do not wait for your transfer credit assessment to enrol in courses!

Choose How You Learn: Course Delivery Options 

Click the image to watch the video

In addition to choosing your courses, you can also decide how you want to learn. We offer four course delivery options for you to choose from: 

Delivery mode What you can expect

  • weekly classes with scheduled attendance at a specific location and time for some or all course activities
  • class sizes will be at a reduced capacity to practice safe physical distancing
  • this delivery option is subject to adjustments imposed by public health requirements for physical distancing

In-person (rotating live lecture and in-class video stream)

(LEC 7)

NEW for 2021-2022
  • attendance in-person is required; lectures cannot be viewed remotely
  • class sizes will be at a reduced capacity to practice safe physical distancing and will be split between two classrooms. The instructor will teach in Classroom A, and a live broadcast will be streamed into Classroom B. The next week, the instructor will teach in Classroom B, and a live broadcast will be streamed into Classroom A. This rotation will continue throughout the term.
In-person and online rotation 

  • classes will rotate between attendance in-person, and online delivery. 
  • class sizes will be at a reduced capacity to practice safe physical distancing
Online Synchronous

  • online attendance is expected at a specific time for some or all course activities
    • for example, attending lecture online with your classmates and professor takes place at a scheduled time, but watching a video for the course may be completed online at your own pace.
  • these courses can be completed fully online
  • in-person attendance cannot be made mandatory, even if the option is available (e.g., invitation to attend the first lecture in-person, to write a test, etc). 

Online Synchronous with an in-person final exam


New for 2021-2022

  • online attendance is expected at a specific time for some or all course activities
    • for example, attending lecture online with your classmates and professor takes place at a scheduled time, but watching a video for the course may be completed online at your own pace.
  • final exam is written in-person (pending public health guidelines)
Online Asynchronous

  • lectures can be viewed "on demand" and students can go through course material at their own pace
  • all students are still required to meet deadlines for course work as noted in their course syllabus 

Regardless of the delivery option that you choose, it's important to read the course syllabus for each of your classes! Your professor will outline everything you need to know about when classes take place, how to get in touch with them, academic expectations, and more. 

Enrolment Controls

Some courses have enrolment conditions that control how students enrol in a course and/or which categories of students are permitted to enrol in that course. A course with enrolment controls will be listed in the timetable to provide you with additional information describing how to enrol and which categories of students are allowed in.

If no enrolment control indicator is shown, the course may be selected by all U of T Mississauga students who have appropriate prerequisites. Some courses require further approval to complete your enrolment. These courses may still be added using ACORN, but will appear with an interim status until reviewed. After departments review the requests, they assign a status of approvedrefused, or cancelled. It is the responsibility of the student to check the status of a request. Once a course is approved, the course fee will be added to your account and enrolment is complete. If a course is refused, no charges will be incurred.

Some courses and/or practicals and tutorials appear on the timetable as “Closed.” Students may not enrol in closed tutorials/practicals using ACORN until the courses are opened.

These closed courses/tutorial/practicals may be placed on the timetable by departments:

  • as placeholders to hold a room reservation and time slot in case enrolment in the course grows to a level where extra lectures/tutorials/practicals are needed, OR
  • for delayed enrolment, such as certain practicals/tutorials which are only opened after the first class meeting, OR
  • for students to enrol on Blackboard as per notes on the course timetable.

Students may only enrol in lectures/practicals/tutorials that are available. Please do NOT rely on “Closed” sections becoming available. Sections will be opened only if demand warrants. 

Managing Your Courses

Full-Time / Part-Time Status


  • Full-time: Enrolling in 3.0 credits or more 
  • Part-time: Enrolling in fewer than 3.0 credits 


  • Full-time: Enrolling in 1.5 credits or more 
  • Part-time: Enrolling in 1.0 credit or less 

For OSAP purposes, please refer to this chart to determine full-time status

Course Loads - How Many Can I Add?

  • A standard course load for students seeking to complete their degree in four years is 5.0 credits in the Fall - Winter sessions. You may choose to take 4.0 credits in the Fall - Winter sessions, and 1.0 credit in the Summer. 
  • During the second enrolment period, students will have the option to add an additional 1.0 credit for a total of 6.0 credits. If you add waitlisted courses, they will count toward your total number of credits during the enrolment period. 
  • To take more than 6.0 credits (or 3.0 credits per term), submit a petition online for a course overload to request approval. Students enrolled in more than the maximum course load without permission may have the last course(s) that they were enrolled in removed from their course load for that term.

Adding Courses

When your course enrolment start time begins:

  1. Login to ACORN using your JOINid / UTORid 
  2. Select the "Enrol & Manage" feature from the Academics menu
  3. Select your session (Fall-Winter or Summer)
  4. Type in the course code or title in the search field to select the course you want
  5. A pop-up window will appear for you to select a lecture, then a tutorial and/or practical (if applicable)
  6. Click "Enrol". ACORN will confirm if your request was successful, or if there is no space remaining in the section you want.

Waitlist Option

If a lecture section is full, you can add yourself to the waitlist - this is a virtual "line up" to reserve your space in a course should one become available. If you are next on the waiting list, you will be enrolled automatically into the lecture. You are responsible for adding any applicable tutorial, lab, or practical sections by the enrolment deadline.

It's important to recognize that being on the waiting list does not guarantee you a space in the course. If you change your mind about being on a waiting list for a course, please cancel it as soon as possible to avoid course fees, and to give other students the opportunity to move up on the list. By adding a course to the waiting list, you maintain repsponsibility for all academic and ancillary fees related to the course.

Conflicting Courses on Your Timetable

Do not enrol in two or more courses, tutorials, or practicals that are held at the same time, as no special accommodations will be made. 

Dropping Courses

There are academic, and financial deadlines that are important for you to consider. Academic and financial deadlines have important implications on your academic record, and/or your fees. 

Things to consider: 

  • If you are receiving financial aid (OSAP or other), speak with a Financial Aid Advisor before dropping a course. In some cases, dropping a course may result in significant changes to your funding and may impact future eligibility. 
  • Academic Advisors are available to support your academic goals, and can meet with you to discuss any questions or concerns you may have.

Dropping a Course on ACORN

  1. Login to ACORN 
  2. Using the Courses screen, click the gear icon next to the course title and select "Drop course" from the drop down menu that appears.

Late Withdrawal after the Drop Date (LWD)

If you missed the deadline to drop a course, you may apply for a Late Withdrawal (LWD) up until the last day of classes.

Credit / No Credit Option 

U of T Mississauga degree students may select up to a maximum of 2.0 credits throughout their undergraduate career to be assessed as Credit/No Credit. Courses passed with a final mark of at least 50% will receive a 'credit' (CR) notation on your transcript. Marks below that will be assessed as 'no credit' (NCR), and will be recorded on your transcript.

Students who select CR/NCR for a course may use it toward distribution requirements, but it cannot be used to satisfy program requirements. CR/NCR assessments have no effect on your GPA. Courses with a final status of CR will count as degree credits. 

U of T Mississauga academic and financial deadlines still apply to courses taken at other campuses, with the exception of the Late Withdrawal after the Drop Date (LWD), and Credit/No Credit (CR/NCR) option.

The deadline to select or cancel CR/ NCR is the last day of classes for the relevant session.  In courses with a final exam, the CR/NCR option must be requested or cancelled no later than the last day of classes in the term in which the course was offered. In courses with no final exam, the deadline to request or cancel CR/NCR is before the date of the final test or the due date of the final assignment. U of T Mississauga academic and financial deadlines still apply to courses taken at other campuses, with the exception of the Late Withdrawal after the Drop Date (LWD), and Credit/No Credit (CR/NCR) option. If a student has requested CR/NCR in a course in which they committed an academic offence, the request will be revoked and the percentage grade will stand as the course grade. 

Please note that some programs specify that courses with a grade of CR/NCR will not count as part of the 4.0 credits required for program entry. Program entry requirements are listed in the Calendar.

Academic Opportunities

Research Opportunity Program (ROP)

The Research Opportunity Program (ROP) provides an opportunity for students to earn 0.5 to 1.0 full credit by participating in a faculty member’s research project.

Descriptions of ROP299, 399 and 499 projects will be available late February to early March of each year. Students wishing to apply for placement in ROP projects must log in to the ROPAPP using their UTORid. 

Taking Courses at Other U of T Campuses

Non-degree visiting students at U of T Mississauga may not take courses at other campuses.

If you want to enrol in courses offered at the St. George (downtown Toronto) campus or at U of T Scarborough, check their respective enrolment instructions because many courses restrict enrolment and have limited space for U of T Mississauga students. Refer to our Important Dates page for course enrolment dates at other U of T campuses.

You must follow U of T Mississauga financial and academic dates, with the exception of Late Withdrawal After the Drop Date (LWD), and Credit/No Credit — consult the Important Dates page on our website.

It is your responsibility to:

  • Ensure that the courses you enrol in do not duplicate, and are not exclusions for, courses you have successfully completed.
  • Check with your department advisor regarding the acceptability of courses for program requirements.
  • Check with the Office of the Registrar regarding acceptability of courses for degree requirements.
  • Failure to follow these steps could result in loss of credits and delay your graduation.
  • If you need to drop a course taken at another U of T campus, the U of T Mississauga fees refund schedule and deadlines apply. Please check the “Important Dates” section on our website.

Letters of Permission

U of T Mississauga students wishing to enrol at another Canadian university and transfer those credits towards a University of Toronto degree must apply for, and be granted, a Letter of Permission (LOP) from the Office of the Registrar before enrolling at the other university. If you do not receive an LOP before you take these courses, you should apply for a transfer credit assessment upon completion. However, there is no guarantee what, if any, transfer credit you will receive. You must have 4.0 credits completed at U of T Mississauga to be considered for a letter of permission.