The majority of document loans, for which the period is 30 days, are renewed automatically on the due date, unless the document has been reserved by another user or your account is not in good standing. You will therefore not have to pay a fine, unless you fail to return the document within the prescribed time limit once notified that it has been reserved by another user. If the document you borrowed is reserved by another patron, you have up to 7 days after the due date to return it. If you fail to return the document on time, late fees will apply.
For other documents, you may renew online by accessing your account. You may renew before the due date.
In the list of loans, select all the documents or just one and click on Renew items.