What Is Net 30?
Net 30 is a payment term meaning the full invoice amount is due 30 days after a start date — most commonly the invoice date, though delivery date and end-of-month (EOM 30) are also used depending on the vendor agreement. It's one of the most common B2B payment terms, giving buyers a short-term interest-free window to pay after receiving goods or services.
What Does Net 30 Mean in Practice?
"Net" refers to the full (net) amount owed with no discount applied, as opposed to terms like 2/10 Net 30 where an early-payment discount is available. "30" is the number of days until the full amount is due. So Net 30 simply means: pay the full invoice amount within 30 days of the agreed start date.
Net 30 Payment Terms — What Sellers and Buyers Should Know
For sellers, Net 30 terms extend credit to the buyer — the seller is effectively financing the purchase for up to 30 days. For buyers, Net 30 improves cash flow by delaying payment. Many businesses negotiate shorter (Net 15) or longer (Net 60, Net 90) terms depending on bargaining power, industry norms, and the buyer's credit history.
The Real Ambiguity: 30 Days From What?
The single biggest source of confusion in Net 30 terms isn't the "30" — it's the start date. In practice, three conventions exist:
| Basis | Start date |
|---|---|
| Invoice date | Day the invoice is issued (most common default) |
| Delivery date | Day goods are delivered or services completed |
| End of month (EOM 30) | Last calendar day of the invoice's month |
Use our Net 30 calculator to compute the exact due date under any of these three conventions, in calendar or business days.
Frequently Asked Questions
What does Net 30 mean?
Full payment due 30 days after the agreed start date on the invoice.
What is net 30 payment terms?
A common B2B credit arrangement where the buyer has 30 days to pay the full invoice amount with no discount.
What does 30 net terms mean?
Same as Net 30 — the full amount is due within 30 days of the invoice/delivery/EOM start date.
Is Net 30 good or bad for a small business?
As a seller, Net 30 means financing your buyer for up to 30 days — manageable with healthy cash flow, risky if you depend on fast payment. As a buyer, Net 30 improves your own cash flow.