INVOICE DUE-DATE CALCULATOR / 04
Invoice due date calculator for Net 30, Net 60 and custom terms.
Calculate invoice due dates for Net 7, 14, 15, 30, 45, 60, 90 or custom payment terms. Free, no sign-up, using calendar days.
Before you enter information, read our Terms of Use and Privacy notice.
Your details
Your entries are not saved by Junocity. Closing or refreshing this page may lose your work.
A clear date to work toward
A little clarity for your next project.
Enter your details and calculate to see the result.
THE THINKING BEHIND IT
An explicit date.
With the context to use it.
How it works
Add the agreed number of calendar days to the issue date. Weekends count. Dates are calculated as dates, so changing your device’s timezone does not shift the result.
What does Net 30 mean?
In this calculator, Net 30 means the due date is 30 calendar days after the invoice issue date, with the issue date treated as day zero. Your contract may use a different starting event or adjustment rule, so confirm the agreed wording.
Common invoice payment terms
| Term | Due date used by this calculator |
|---|---|
| Net 7 | 7 calendar days after the invoice date |
| Net 14 | 14 calendar days after the invoice date |
| Net 15 | 15 calendar days after the invoice date |
| Net 30 | 30 calendar days after the invoice date |
| Net 45 | 45 calendar days after the invoice date |
| Net 60 | 60 calendar days after the invoice date |
| Net 90 | 90 calendar days after the invoice date |
Does Net 30 include weekends?
Yes in this calculator. Net terms are counted as calendar days, so weekends are included. The result does not move a due date for weekends, public holidays, banking closures, or a client-specific contract rule.
Can I use custom payment terms?
Yes. Choose custom calendar days and enter any whole number from 0 to 3,650. Zero means the invoice is due on its issue date.
Should I show the exact due date on an invoice?
An explicit date can make the agreed deadline easier to read than a term alone. Check the contract or client agreement first, then place the confirmed date on the invoice.
A worked example
For an invoice issued on 21 September 2026 with Net 30 terms, the due date is 21 October 2026. The issue date is day zero.
Keep in mind
This does not adjust for weekends, public holidays, banking schedules, contract rules, or local law. Confirm the agreed terms with your client before putting a date on an invoice. Custom terms accept 0–3,650 whole days.
Keep your next step simple.
Read the guide to payment terms