There are several options for returning books, depending on your circumstances:
If in a library building you can return your books via the self-issue kiosks - follow the instructions, and then place it in the chute next to the kiosk. Items returned via the kiosks come off your account immediately.
Alternatively, you can return your books via a book return bin, which don't required scanning the book:
Books returned via these book bins need to be processed by Library staff so will not come off your account immediately.