What is net 30?

Definition

Net 30 is a due-date rule that makes the full invoice payable 30 days after the invoice date. The customer may pay sooner, but the seller is not owed the cash until that 30th day.

It is one common form of payment terms, not a separate document. The invoice still creates accounts receivable, and net 30 only sets the clock.

"Net" means the full billed amount, with no discount assumed. The 30 is calendar days unless the agreement says business days.

Where it shows up

Balance sheet: Related to the receivable that stays open for those 30 days.

P&L: Related to nothing extra unless a later discount or late fee is recorded.

Cash flow: Related to cash arriving after that 30-day window.

See also: Payment Terms · Invoice · Days Sales Outstanding

When you look at the Balance Sheet, you will not find a line named for this rule. You will find the receivable sitting in current assets until the customer pays, which the rule says should be within 30 days.

The Statement of Cash Flows shows the collection later, not on the invoice date. Operating cash arrives when the check or transfer actually lands.

The Income Statement usually ignores the 30-day window. Revenue was already recorded with the invoice, and only a later discount or late charge would change profit.

Days sales outstanding is how you test whether net 30 is real in practice. If the printed terms are 30 and this number sits at 55, customers are paying well after the rule.

On the vendor side, net 30 on a bill you received is the same clock in reverse. Days payable outstanding then tells you whether you are paying those suppliers inside 30 days.

How it works

The seller prints net 30 on the invoice, or the contract already set that window. Day 1 is the invoice date unless the parties agreed on a different start.

How net 30 usually works:

• Print net 30 on the invoice, or set it in the contract
• Record the sale and receivable on the invoice date
• Due date is invoice date plus 30 days (or your stated end-of-month convention)
• Until that date the invoice is current; after it, follow-up starts if unpaid
• Early discounts or late fees are separate events only when the agreement allows them

The books record the sale and the receivable on that invoice date. Nothing extra is journaled for the 30-day label itself.

The due date is invoice date plus 30 days. An invoice dated March 1 is due March 31 under a simple count, unless your system uses a stated end-of-month convention.

Until that date, the invoice is open and current. After that date, it is past due, and follow-up starts if cash has not arrived.

If the customer pays on day 12, the receivable clears early and no extra income or expense is required. If they pay on day 40, the same receivable clears late, and a late fee is recorded only when the agreement allows one.

Some net 30 deals also offer an early payment discount, such as 2 percent off for paying in 10 days. Taking that discount is a separate event from the 30-day due date.

The rule does not change what was sold. It only changes when the seller should expect cash.

Example

A florist bills a neighborhood cafe $300 for a week of bread. The invoice is dated June 1 and marked net 30.

The cafe owes the full $300 by July 1. The florist already recorded the sale and the receivable on June 1.

No journal is made for the words "net 30" on the page. The journal was the original invoice, and the next journal will be the cash that pays it.

If the cafe pays on June 20, cash arrives inside the window and the receivable comes down. If the cafe pays on July 18, the same $300 is now late, and the florist's collection days stretch past the printed 30.

The florist can still sell the next week's bread on the same terms. Each invoice carries its own 30-day clock from its own date.

Common mix-ups

Net 30 is not the invoice. The invoice is the bill, and net 30 is only the due-date rule printed on it.

Net 30 is not cash in 30 days as a guarantee. It is the promised deadline, and actual cash can arrive earlier or later.

Net 30 is not the same as net 15 or due on receipt. Those are other payment terms with shorter clocks.

Related terms

• Payment Terms: The agreed deadline and conditions for paying an invoice.
• Invoice: The document that bills a customer and creates a receivable.
• Days Sales Outstanding: The average number of days it takes to collect an invoice.
• Early Payment Discount: A price reduction offered for paying an invoice ahead of the due date.
• Accounts Receivable Aging: A report bucketing open invoices by how long they have been outstanding.
• Late Fee: A charge added when an invoice is paid after its due date.
• Collections: The process of following up on unpaid customer invoices.
• Days Payable Outstanding: The average number of days the business takes to pay its vendors.