Finance

Net 30 Invoice Due Date

Compute due dates for Net 15 / 30 / 60 / 90 invoices.

These calculators are for informational purposes only and do not constitute legal, financial, or professional advice.

How the Net 30 Invoice Due Date works

The Net 30 Invoice Due Date calculator turns a start date and a payment term — Net 15, 30, 60, or 90 — into an exact due date. Net terms are counted in calendar days, so the tool simply needs the day the clock starts and the number of days in the term.

The ambiguity in Net 30 is never the 30; it is day zero. Invoice date, date of receipt, and delivery date can differ by days, and each shifts the due date. Agree on the start date up front and the due date stops being a point of dispute.

Worked example

An invoice dated May 2 on Net 30 terms is due May 32 — which does not exist, so the due date rolls to June 1. The calculator does that month-boundary arithmetic for you and shows the exact date.

Frequently asked questions

Is Net 30 counted in business days or calendar days?

Calendar days, in almost all cases. Net 30 means 30 calendar days from the agreed start date — weekends and holidays are included in the count, though the final due date may itself be a weekend.

What date does the term start from?

Whatever your agreement specifies — most commonly the invoice date, but sometimes the date the invoice is received or the goods are delivered. The calculator lets you set that start date explicitly.

Does it support Net 15, 60, and 90?

Yes. Choose any common net term and the due date is computed the same way.