1. to deduct or subtract in advance; to make a deduction before a calculation or payment is finalized
Usage: rare; technical; accounting or financial contexts

Examples

• The company prededucts taxes from employee paychecks.
• The accountant prededucts estimated expenses before calculating the final profit.
• Insurance premiums are often prededucted from monthly benefits.
• The system prededucts administrative fees from the total reimbursement amount.