Free Payment Due Date Calculator
Know exactly when invoices are due
Enter the invoice date and payment terms (Net 7, Net 30, Net 60, etc.) to instantly find the payment due date. Also shows if an invoice is overdue and by how many days.
What Is a Payment Due Date Calculator?
A Payment Due Date Calculator instantly finds when a customer or vendor payment is due based on the invoice date and your payment terms. Whether you use Net 7, Net 30, Net 60, or a custom number of days, this tool shows the exact due date, how many days remain, and whether the invoice is already overdue. It takes the guesswork out of chasing payments and helps you manage cash flow by knowing exactly when money is expected.
How to Find a Payment Due Date
Step 1 — Enter the Invoice Date
Pick the date on which the invoice was issued. This is the date printed on the top of your invoice — also called the invoice date or billing date.
Step 2 — Select Payment Terms
Choose your standard payment terms: Net 7, Net 15, Net 30, Net 45, Net 60, or Net 90. Or select 'Custom' to enter your own number of days.
Step 3 — Read the Due Date & Status
The tool shows the exact due date and how many days remain. If the invoice is overdue, it shows by how many days so you can follow up immediately.
Who Uses This Payment Due Date Calculator?
Freelancers & Consultants
Quickly check when each client's payment is due and flag overdue invoices for follow-up.
Small Business Owners
Track multiple invoice due dates to manage cash flow and plan expenses accordingly.
Accountants & Finance Teams
Verify payment terms on incoming vendor invoices and set reminders before the due date.
Vendors & Suppliers
Confirm when a buyer's payment is expected after sending a sale invoice with Net 30 or Net 60 terms.
Frequently Asked Questions
What does Net 30 mean on an invoice?
Net 30 means the customer must pay the full invoice amount within 30 days of the invoice date. Net 15, Net 45, Net 60, and Net 90 follow the same pattern with different day counts.
When does the payment term countdown start?
It starts from the invoice date (the date on the invoice), not the date the invoice was received or delivered. Always include a clear invoice date on every invoice you send.
What if the due date falls on a Sunday or public holiday?
Typically, payment is expected on the next working day. Confirm with your customer or buyer what the mutual understanding is for holiday-adjusted due dates.
What is early payment discount (EPD)?
An early payment discount is an incentive like '2/10 Net 30' — meaning 2% discount if paid within 10 days, otherwise full payment is due in 30 days. This calculator shows the standard due date; any discount terms should be noted on the invoice.
Can I charge interest on overdue invoices?
Yes, if mentioned in your invoice terms (e.g. '1.5% per month on overdue balances'). Check your invoice terms to work out the interest amount owed.
Is this payment due date calculator free?
Yes, 100% free with no account required.