Net 30, Net 45, Net 60 and Net 90
Calculate a due date from the invoice or receipt date using standard calendar-day terms.
Business payment toolsFree browser tool
Invoice Due Date & Payment Terms Calculator
Calculate invoice due dates for Net 7, Net 15, Net 30, Net 45, Net 60, Net 90, business-day and end-of-month payment terms.
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Page reviewed July 2026
Invoice payment workspace
Calculate invoice due dates and payment terms
Use Net 7, Net 15, Net 30, Net 45, Net 60, Net 90, business-day terms, end-of-month terms or a custom agreement.
Final due date
9 September 2026
Payment status
Upcoming
Days remaining
30
Selected terms
Net 30
Counted from invoice date
Contractual due date
9 September 2026
Working-day adjustment
No adjustment
Custom holidays entered
0
Upcoming
The calculated payment due date is 9 September 2026.
Recommended next actions
- ✓ Confirm whether the contract counts terms from invoice date, receipt date or approval date.
- ✓ Verify local bank holidays, weekends, grace periods and month-end conventions.
- ✓ Schedule approval before bank cut-off times and record disputes separately.
Payment terms calculator
Calculate invoice due dates from common commercial terms
Business-day payment terms
Exclude configurable weekends and your own holiday or company closure dates.
End-of-month terms
Calculate month-end, month-end plus days, or a fixed payment day in the following month.
Long-tail invoice searches
Invoice due date, overdue status and payment deadline planning
Net 30 due date calculator
Enter the invoice date, select Net days and choose 30. The workspace also supports Net 7, 15, 45, 60 and 90 without creating duplicate calculator pages.
Invoice due date from receipt date
Some contracts start the payment clock when the customer receives or accepts the invoice. Switch the starting basis to the receipt date when that matches the agreed terms.
Payment due date excluding weekends and holidays
Use business-day terms or move a non-working due date forward. Weekend patterns and holiday assumptions remain visible and editable for global use.
Overdue invoice days calculator
Compare the final due date with a selected review date to see whether the invoice is upcoming, due today or overdue.
FAQ
Invoice payment terms and due date questions
How do I calculate a Net 30 invoice due date?
Select Net days, choose 30 days and enter the invoice date. If your contract starts the term from receipt rather than issue, select Receipt date as the starting basis.
What do Net 15, Net 30, Net 45 and Net 60 mean?
They normally indicate that payment is due a stated number of days after the agreed starting date. The contract may define that date as invoice issue, receipt, acceptance or another event.
Can the calculator use business days instead of calendar days?
Yes. Select Business days, choose the weekend pattern and enter any relevant holidays or company closure dates.
Can I calculate end-of-month payment terms?
Yes. Choose End of invoice month, End of month plus days, or a fixed day of the following month.
What happens when a due date falls on a weekend or holiday?
Enable the working-day adjustment to move the result to the next working day. Confirm the actual contractual convention because some agreements use a previous-working-day rule instead.
Does the tool automatically know public holidays?
No. Holiday calendars vary by country, region, bank, employer and year. Enter the exact dates relevant to your invoice or contract.
Can this tool tell me whether an invoice is overdue?
Yes. Enter a review date and the calculator shows whether payment is upcoming, due today or overdue, together with the number of days remaining or overdue.
Is this calculator accounting or legal advice?
No. It is a planning aid. Confirm payment terms, invoice receipt, disputes, holidays and legal obligations with the contract and authorised finance process.