Invoice Due Date Calculator
Pick the invoice date and payment terms — see the due date, days remaining, and overdue status.
Inputs
Result
Due date
Tuesday, June 23, 2026
2026-06-23 · 30 days remaining
Visual breakdown
Invoice date
2026-05-24
Terms
Net 30
Due date
2026-06-23
Status
30 days remaining
Formula
Due date = invoice date + N calendar days. Days remaining = due date − today. Negative days mean the invoice is overdue.
Example
Invoice Jan 1 with Net 30 → due Jan 31. With Net 15, due Jan 16.
Related: Date · Business days · Date difference
How to use
- Use the invoice issue date — not the work-completed date — unless your terms say otherwise.
- Switch between Net 15 / 30 / 45 / 60 to see how faster terms speed up cash flow.
- Use Custom for unusual terms like Net 7 or Net 90.
When it's useful
- Sending a freelance or business invoice.
- Tracking which invoices are overdue.
- Negotiating faster payment terms with clients.
Common examples
Jan 1 invoice, Net 30
Due Jan 31.
Net 15 vs Net 60
Faster terms → faster cash flow.
Overdue check
Negative days remaining = overdue.
Frequently asked
What does Net 30 mean?
Payment is due 30 calendar days from the invoice date. Net 15, 45, and 60 work the same way.
Calendar days or business days?
Net terms are calendar days by convention. For business-day counts, use the Business Days calculator.
When does 'overdue' start?
The day after the due date. This calculator marks any negative days-remaining as overdue.
Does this handle early-payment discounts?
No — terms like '2/10 Net 30' need a separate calculation. This focuses on the due date itself.