Invoice due date calculator
Enter the invoice date and your payment terms to get the exact due date, with the weekday.
Calculation summary
Calculated liveTuesday
Net 30 counts 30 days from the invoice date. EOM counts from the last day of the invoice month.
Instant breakdown
Every figure is shown line by line, rounded to two decimals, so you can copy it straight onto an invoice.
Formula you can check
The formula and a worked example sit below the tool, so you can verify the result yourself.
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The numbers stay in your browser. Nothing is stored or sent to a server.
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Create an invoiceHow invoice due dates work
The due date is the invoice date plus the payment term. Net terms count calendar days from the invoice date. End of month terms start counting from the last day of the month.
Write the due date on the invoice itself, not only the terms, so there is no doubt about when payment is late.
Common questions
Clear answers on contract law, calculations and enforcement.
What does Net 30 mean?
Payment is due 30 days after the invoice date. An invoice dated 1 March is due on 31 March.
What does EOM mean in payment terms?
End of month. Net 30 EOM means 30 days after the last day of the invoice month.
Does the due date include weekends?
Yes, calendar days are counted. Tick the weekend option to move a Saturday or Sunday due date to Monday.
What is due on receipt?
Payment is due when the client receives the invoice. Enter 0 days.
Which payment terms should I use?
Net 14 or Net 30 are common. Shorter terms improve cash flow, longer terms may be required by large clients.