What net 30 means
The full amount is due 30 days after the invoice date.
Count 30 calendar days from the invoice date, weekends included, unless the contract says otherwise.
A worked example
An invoice for 1,000.00 USD dated Nov 2, 2026, on net 30:
- It is due Dec 2, 2026: 30 days after the invoice date, every calendar day counted.
- With a late fee of 1.5% a month for each month or part of one, paying 10 days late costs 15.00 USD, and 45 days late 30.00 USD: 1,000.00 × 1.5% × 2 months = 30.00.
Work out your own net 30 invoice
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A label only.
As the invoice writes them, such as 2/10 net 30, net 45 or net 30 EOM.
In percent. Weighed against the discount to pick the day to pay; blank counts as 0%.
If the contract charges a late fee
As the contract states it: a percent a month, or a fixed amount.
Days after the due date before the fee applies.
Late fee is
Charged
A month counts as 30 days.
The monthly percent × 12 ÷ 365, for each day.
The fee this many days after the due date, besides 7, 30 and 60.
Other common terms
- 2/10 net 30
2% off if you pay within 10 days of the invoice date; otherwise the full amount is due 30 days after the invoice date.
- 1/10 net 30
1% off if you pay within 10 days of the invoice date; otherwise the full amount is due 30 days after the invoice date.
- 2/10 net 60
2% off if you pay within 10 days of the invoice date; otherwise the full amount is due 60 days after the invoice date.
- 3/10 net 30
3% off if you pay within 10 days of the invoice date; otherwise the full amount is due 30 days after the invoice date.
- net 60
The full amount is due 60 days after the invoice date.
- net 30 EOM
The full amount is due 30 days after the last day of the month the invoice is dated in.
Or enter any terms in the payment terms calculator.
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