Net 14 Calculator: Due Date for 14-Day Invoice Payment Terms

Also written as: 14 days · 14 days net · payment within 14 days · invoice payment terms 14 days · Net 14 days

EOM rows start counting when the invoice month ends (method 1); the EOM guide shows the second reading. Dates are calendar arithmetic: weekends and holidays are not skipped.

Replace [due date] with the date from the calculator.

due date = invoice date + 14 calendar days. The day after the invoice date is day 1, and day 14 is the due date: the last day to pay on time, unless the contract says otherwise. 14 days is exactly 2 weeks, so the due date always falls on the same weekday as the invoice date.

This is date arithmetic only. Where a law sets its own payment period, it can count from a different event; the rules we have verified are quoted in the payment terms guide.

Late interest in the calculator is simple interest: amount × yearly rate × days late ÷ 365, where the days late are the days after the due date up to and including today. It is arithmetic on the rate you enter, not a statement that the rate is allowed.