How to Use
- 1.
Enter the invoice date and choose whether the payment term starts on the invoice date or date received.
- 2.
Select Due on Receipt, Net calendar days, Net business days, EOM, or Net days from month-end.
- 3.
Choose a preset term or enter a custom number of days where available.
- 4.
Turn on weekend and U.S. federal holiday adjustment only if it matches the agreement or billing policy.
- 5.
Review the due date, due or overdue status, and suggested reminder dates.
- 6.
Copy the summary and verify the result against the invoice and contract terms.
Features
Net 7, 15, 30, 45, 60, and 90-day terms plus custom day counts
Calendar-day and business-day term calculations
Due on Receipt and End of Month options
Net days from invoice month-end calculation
Choose invoice date or date received as the term start
Optional weekend and U.S. federal holiday roll-forward
Due today, days remaining, or days overdue status
Suggested 7-day and 1-day payment reminders
Copyable result summary and private browser-based calculation
Frequently Asked Questions
How do I calculate an invoice due date for Net 30?+
Choose the date that starts the payment term, select Net calendar days, and enter 30. The calculator adds 30 calendar days, then optionally moves a weekend or listed U.S. federal holiday forward if that setting is enabled.
Does Net 30 include weekends?+
This tool treats Net 30 as 30 calendar days, so weekends and holidays count. Select Net business days when the written terms explicitly use business days.
What does EOM mean on an invoice?+
EOM commonly means End of Month. In this calculator, EOM is the last calendar day of the invoice month. Net days from month-end adds the selected calendar-day count after that date.
Can I calculate a due date from the day an invoice is received?+
Yes. Set Count terms from to Date received and enter the received date. Check the contract because payment terms may start from invoice, receipt, acceptance, or another event.
Which holidays are excluded from business days?+
Business-day counting excludes Saturdays, Sundays, and the U.S. federal holiday dates represented by the calculator, including observed fixed-date holidays. Company closures, state holidays, and bank-specific calendars may differ.
Will the calculator tell me if an invoice is legally late?+
No. It estimates a date from the options you select. Contract language, jurisdiction, receipt or acceptance rules, and payment processing policies can affect the actual due date or late status.
Does this calculator send payment reminders?+
No. It displays suggested reminder dates seven days and one day before the due date, but it does not create calendar events or send notifications.
Are invoice dates uploaded or saved?+
No. The calculation runs in your browser and the entered dates are not sent to WebToolsEdge.
About this tool
Free Invoice Due Date Calculator
Use the free Invoice Due Date Calculator to turn common payment terms into a calendar date. Enter the invoice date, choose whether terms begin on the invoice date or the date it was received, and select Due on Receipt, Net calendar days, Net business days, End of Month, or Net days from month-end.
This invoice payment due date calculator is useful for freelancers, vendors, bookkeepers, small businesses, and accounts payable teams checking a customer or supplier invoice. It can estimate a Net 15, Net 30, or Net 60 due date, handle a custom number of days, and show suggested reminder dates one week and one day before payment is due.
Calendar-day terms count every date, including weekends and holidays. Business-day terms count Monday through Friday and exclude the U.S. federal holidays represented in this tool. The optional adjustment moves a calculated due date that lands on a weekend or listed federal holiday to the next business day. Turn it off when your contract or accounting policy says not to roll the date forward.
End of Month (EOM) means the last calendar day of the invoice month. Net days from month-end first finds that month-end date, then adds the selected number of calendar days. For example, Net 30 from month-end is not the same calculation as 30 days from the invoice date. Always confirm how the parties define EOM and payment receipt.
The result is a planning estimate, not an interpretation of a contract or a determination of when payment is legally late. An agreement may count from receipt, acceptance, delivery, or another trigger; it may use a different business calendar, cutoff time, time zone, or weekend rule. Use the signed terms and applicable law when they differ from a calculator setting. Dates are processed in your browser and are not uploaded to WebToolsEdge.
For a general date gap or business-day count, use the Date Difference Calculator. Browse the Calculators category for other everyday planning tools.
Need a broader date-range breakdown or business-day count? Use the Date Difference Calculator, or browse more Calculators. Verify the selected terms against the invoice and signed agreement.