Net 30 calculator
Pick the invoice date and this tells you the exact day a Net 30 invoice is due — or Net 15, Net 60, due on receipt, or any number of days you type. It runs here in your browser: nothing is sent anywhere and nothing is saved.
What Net 30 means
“Net 30” is shorthand for “the net amount is due 30 days after the invoice date.” The net amount is the total after any discount or deposit already shown on the invoice; the 30 is calendar days. Net 15 and Net 60 work the same way with a different number, and “due on receipt” means due the day the customer gets it.
Here is one invoice, dated Tuesday, November 3, 2026, under each of the usual terms:
| Terms | Due date |
|---|---|
| Net 7 | Tue, Nov 10, 2026 |
| Net 15 | Wed, Nov 18, 2026 |
| Net 30 | Thu, Dec 3, 2026 |
| Net 45 | Fri, Dec 18, 2026 |
| Net 60 | Sat, Jan 2, 2027 |
| Net 90 | Mon, Feb 1, 2027 |
Net 60 on that invoice lands on a Saturday, which is the case the next section is about.
How the due date is worked out
Payment terms are counted in calendar days from the invoice date. Weekends and holidays are included, because the terms count days, not working days, unless you have agreed otherwise in writing.
If a due date lands on a weekend and you would rather be paid the Friday before or the Monday after, say so on the invoice — the arithmetic does not know your bank’s hours, and the wording on the paper is what a customer will follow.
Which terms to use
For a one-person trade business, shorter terms get you paid sooner, and a due date the customer can see beats “due on receipt” with no date attached. Net 15 and Net 30 are the common choices; Net 60 tends to appear only where a larger customer sets the terms. Whatever you choose, put the due date on the invoice rather than leaving the customer to count.
If an invoice does run past its date, the late fee calculator works out what a fee comes to, and the guide to what to do about a past-due invoice has the reminders to send.
Make the invoice itself
The invoice templates open with your trade’s usual jobs and prices filled in, and each invoice prints its own due date. One thing to know: invoices made here are due 15 days after the invoice date (Net 15), and the editor has no setting to change that yet. If you have agreed Net 30 with a customer, say so in the message you send with it.
More on getting paid in the invoice numbering guide and how to ask for a deposit.
Still pricing the job? The markup calculator turns cost and markup into a price, and shows the margin it leaves.
Questions about Net 30
What does Net 30 mean on an invoice?
It means the full amount is due 30 days after the invoice date. “Net” is the total after any discounts or credits already on the invoice, and 30 is the number of calendar days the customer has to pay it. An invoice dated November 3 on Net 30 terms is due on December 3.
Does Net 30 count weekends and holidays?
Normally, yes. Payment terms count calendar days, not business days, unless your agreement says otherwise. If the 30th day lands on a weekend, the date does not move by itself — say on the invoice whether you expect payment the working day before or after, if it matters to you.
Is Net 30 counted from the invoice date or the date the work was done?
Usually from the invoice date, which is why sending the invoice the day the job finishes gets you paid sooner. Some customers, especially larger businesses, count from the day they receive the invoice instead. Whichever you agree, printing the actual due date on the invoice removes the question.
What does 2/10 Net 30 mean?
It offers a 2% discount if the invoice is paid within 10 days, with the full amount due in 30 days otherwise. It gets some invoices paid early at the cost of the discount. Use the calculator twice — Net 10 for the discount deadline, Net 30 for the due date — and put both dates on the invoice.