Net 30
Also known as: 30-day payment terms, N/30, Payment due in 30 days
Net 30 is a payment term giving the customer 30 calendar days from invoice date to pay the full balance with no discount applied.
Definition
Net 30 means the customer owes the full invoice amount 30 calendar days after the invoice is issued. It's the default B2B payment term in North America and signals that your business extends short-term trade credit rather than requiring payment on receipt.
In practice, your billing team stamps 'Net 30' on the invoice, your accounting system schedules the due date automatically, and AR follows up if payment hasn't cleared by day 30. Some teams pair Net 30 with an early-pay discount like '2/10 Net 30' (2% off if paid within 10 days) to pull cash in faster.
Don't confuse Net 30 with 'Due in 30 days from month-end' or 'EOM 30,' which shifts the clock to the close of the billing month. Net 30 starts the day the invoice is dated, full stop.
Why It Matters
Payment terms directly shape your cash conversion cycle. Offering Net 30 makes you competitive in B2B procurement (most enterprise buyers won't accept payment-on-receipt), but every day past the due date is working capital you've loaned to the customer interest-free. Tightening enforcement on Net 30 invoices can pull weeks of cash forward without raising prices.
Teams that set Net 30 and then don't track it end up with aging receivables creeping into 60, 90, and 120 days. That stalls payroll, blocks reinvestment, and forces founders into expensive lines of credit. Without dunning automation and a clear escalation path, Net 30 becomes Net Whenever.
Examples in Practice
A 30-person creative agency invoices a Fortune 500 client on March 1 with Net 30 terms. Payment is due March 31. The agency's billing system sends a friendly reminder on day 25, a firm reminder on day 31, and routes the invoice to the account lead on day 35 if still unpaid.
A SaaS vendor selling annual contracts to mid-market buyers offers '2/10 Net 30' on six-figure invoices. Roughly 40% of customers take the 2% discount to pay early, which improves DSO by nine days and more than offsets the discount cost.
A wholesale supplier shipping to retailers uses Net 30 as standard but flips new accounts to prepay or COD until they've completed three on-time payment cycles. This protects cash flow while still letting the supplier compete on standard B2B terms.