The company issued the statement Tuesday following reports that a cashier in Philadelphia entered a slur to describe a student on a printed receipt during the weekend.
First-year University of Pennsylvania Ph.D. student In Young Lee told the Daily Pennsylvanian it's important to make a conscious effort to fight racism.
Lee also posted an image of the receipt on Facebook and a message saying he was "infuriated" by the incident.
Taco Bell says the franchisee is retraining staff at the restaurant and management has apologized directly to Lee.
Copyright 2018 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.