What does overdue mean?
Overdue means that something has not happened or been completed by the time it was expected or required. The expression is especially common for unpaid bills, overdue loans, library books, and missed appointments, but it can also describe work, decisions, or opportunities that have been delayed beyond a reasonable or agreed deadline. Unlike merely saying that something is late, overdue often implies that a formal or meaningful deadline has passed and that some consequence, urgency, or further action may follow. For example, a payment can first be due and then become overdue once its payment date has passed. The word is widely used in both British and American English and is typically an adjective, although it can also occur in informal adverbial constructions such as “running overdue.”
adjectivePast the expected or required time for payment, return, completion, or action. It can also describe something that is late because it should already have happened or been dealt with.
- Past the date on which payment, return, or completion was required.
- Late because an expected event, task, or opportunity has not happened when it should have.
- So delayed that attention or action is now urgently needed.
"The library will not accept the book until the overdue fine has been paid."
"The payment is overdue and will now attract additional interest."
"After several missed deadlines, the project was both late and overdue for a decision."
Being overdue means the clock has become part of the story: the deadline is no longer a plan, but a missed appointment with consequences.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does overdue come from?
Overdue was formed in English by combining the prefix over- with due. The sense developed from the idea of being beyond a date or limit: what is due has become overdue when the expected time has passed. Due itself comes through French from Latin debitum, a past participle of debere, meaning “to owe” or “to be indebted.”
How overdue is actually used
Overdue is common in formal and informal contexts, especially for payments, loans, library books, appointments, and work. It describes a situation in which the relevant deadline has already passed.
Easily confused with overdue
Due means scheduled, expected, or payable at a particular time, whereas overdue means that the expected time has already passed.