In plain English
It means an amount that should have been paid is late. The required payment date has already passed, and the amount is still unpaid.
In context
Here, "past due" warns that the bill is still unpaid even though its due date has already passed.
- Situation
- Understanding invoices, billing statements, balances, due dates, credits, and receipts
- What it communicates
- warns that the bill remains unpaid after the due date
Meaning limits
By itself, the term does not say how long the payment has been overdue or what happens next.
Examples
“His rent was past due because he had not paid it by the first of the month.”
“The bill warns that the balance is past due and remains unpaid.”