An early payment discount is a price reduction that a supplier grants when the buyer settles an invoice before its contractual due date, expressed as a percentage applied within a fixed window.
The standard notation is 2/10 net 30: 2 percent off if payment is made within 10 days, full amount otherwise on day 30. The value of that arrangement is not the 2 percent. It is the annualised rate implied by releasing cash 20 days early.
The annualised value of an early payment discount equals the discount divided by 100 minus the discount, multiplied by 365 divided by the days gained. For 2/10 net 30, that is 2 divided by 98, multiplied by 365 divided by 20, or 37.2 percent per year. No short-term cash placement matches that return, which is why a buyer holding liquidity should take the discount in almost every case.
Three conditions have to hold before an early payment discount is actually capturable:
- the invoice is received and recorded inside the discount window
- approval and matching complete with days to spare, not hours
- the payment run cadence allows a payment inside that window
The third condition is the one most finance teams overlook. A twice-monthly payment run makes a 10 day window unreachable for roughly half of incoming invoices, whatever the approval speed. Phacet compresses the first two steps through supplier invoice validation on arrival. Where the discount needs to scale with the days saved, dynamic discounting replaces the fixed window.
