1. payments that are less than the amount owed or required
Usage: plural form of underpayment

Examples

• The audit revealed several underpayments to employees over the past year.
• Tax underpayments must be corrected before the filing deadline.
• The company issued refunds to cover the underpayments on insurance claims.
• Contractors complained about chronic underpayments from the city.
• The accounting department discovered underpayments totaling thousands of dollars.
• Pension underpayments affected hundreds of retirees.