How & When You Pay

Two women speaking outside


Billing and tuition deadlines for Summer Session are determined by your enrollment date (not class start and end dates). Because students can enroll throughout the summer, bills and tuition deadlines occur monthly throughout the summer.

2025 Billing Schedule and Payment Deadlines

Registration for Any Session by/betweenBilling AvailableTuition Due
May 13May 15June 5
May 14 - June 10June 12July 5
June 11 - July 8July 10August 5
July 9 - August 12August 14September 5
August 13 - September 9September 11October 5

Bills become available in Buff Portal (CUBill&Pay for authorized payers) by the second Thursday of each month starting in May after you register for classes. Payment is due on the 5th of the following month. Postmarks and post-dated checks are not honored. Dates may be subject to change without notice.

See the Bursar's Office website for important dates.

Billing & Payment

Tuition and fee bills are available online only. No paper bills are mailed. When bills are issued, email notifications are sent to students’ university-issued colorado.edu email accounts and authorized payers. Bills can be accessed through Buff Portal (CUBill&Pay for authorized payers) by clicking the link in the notification.

If you do not receive a notification, you are still responsible for paying your bill on time. Learn more on the Bursar’s Office website.

Students can designate parents and others (up to five people) as authorized payers. Authorized payers can view, print, and pay tuition bills online. They also receive email reminders when bills are available. Students are responsible for making sure their bill is paid regardless of who is authorized as a payer. 

All payments are expected to be made by (11:59 p.m.) on the due date. Visit the Bursar’s Office website for payment options including payment plans.

We accept cash, checks, eChecks (online bank transfers from conventional U.S. checking or savings accounts) and credit/debit cards. We encourage payment from a checking or savings account in order to avoid a nonrefundable 2.85% service fee (charged by NelNet Campus Commerce) for each credit/debit card payment. All checks containing restrictive endorsements are null and void and nonbinding on the university.

All late payments are subject to a late charge (up to $50) and finance charges of 1% per month on the unpaid balance.

If your payment is returned from your financial institution for any reason, regardless of the amount, it is considered nonpayment and nonpayment penalties may apply. See the Bursar’s Office website for more information about returned payments.