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Net Terms Due Date Calculator

Free net terms calculator: add Net 15, Net 30, Net 60, Net 90 or EOM terms to an invoice date and get the exact due date, days from invoice and days remaining.

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Enter an invoice date and terms, then press Calculate.

Deep dive guides

A LITTLE CONTEXT · 4 MIN READNet 30, EOM and Other Payment Terms, Explained
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How net terms due date calculator works

Net terms state how long a client has to pay after the invoice date: Net 15 means payment is due 15 calendar days after invoicing, Net 30 means 30, and so on. The arithmetic is simple, but the calendar is not — months end at 28, 29, 30 or 31 days, and a January 31 invoice on Net 15 lands on February 15, a different kind of month entirely.

The calculator adds the term's calendar days to your invoice date and returns the exact due date, how many days after the invoice that is, and — against a chosen as-of date — the days remaining until it is due, with an overdue count when the date has passed. EOM (end of month) terms set the due date to the last day of the invoice's own month, a common arrangement for recurring monthly billing.

Use it to sanity-check payment terms before sending an invoice, to answer 'is this invoice overdue?' from either side of the ledger, and to see the cash-flow gap a Net 60 term really creates compared with Net 30. For custom arrangements, enter any number of days from 0 to 365.

Frequently asked questions

Does Net 30 count from the invoice date or the receipt date?
Conventionally from the invoice date printed on the document, which is what this calculator uses. Some firms and public-sector contracts count from receipt of the invoice or receipt of the goods, and a few jurisdictions mandate specific counting rules — if your terms say 'net 30 from receipt', date the clock from delivery instead and use the custom-days mode.
Are net terms calendar days or business days?
By default, calendar days — Net 30 issued on a Friday is due on a Sunday, and many firms then treat the next business day as the effective due date. Business-day net terms exist but must be stated explicitly ('net 30 business days'). This calculator uses calendar days; for business-day terms, compute the business-day span with a business days calculator and enter it as custom days.
What does EOM mean on an invoice?
End of month: payment is due on the last day of the invoice's own month, regardless of the invoice date within it. An invoice dated October 3 or October 28 on EOM terms is due October 31. Variants like '10th EOM' or 'EOM + 30' shift the anchor — those need the custom-days mode after working out the effective start date.
How do early-payment discounts like 2/10 Net 30 fit in?
2/10 Net 30 means the full amount is due in 30 days, but a 2% discount applies if payment arrives within 10. Set terms to Net 30 for the due date; the discount deadline is simply 10 calendar days after the invoice date. An effective annualized return near 37% makes that discount worth taking for the buyer — and worth offering when cash flow matters more to the seller than margin.

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