“Net 30” is three words on an invoice, and it quietly turns you into your customer’s lender for a month. Most of the trouble with it does not come from the customer who pays late on purpose. It comes from terms nobody wrote down clearly: the buyer counts from the day the invoice reached accounts payable, you count from the day you sent it, and both of you are right according to your own reading.
This guide covers what Net 30 means, how to count the due date, how to word it on a quote and an invoice, and how to decide who should get it. If you already offer credit and want to manage the risk (credit limits, early-payment discounts, factoring), read How to offer credit (Net 30) without going bankrupt.
What Net 30 means
Net 30 means the full amount of the invoice is due within 30 days. “Net” is the total after any discounts or credits you already agreed on; it is not “net of tax.” If the invoice includes sales tax, the sales tax is part of what is due on day 30.
Net 30 is one of a family of terms. The ones you are most likely to see:
| Term | What it means |
|---|---|
| Due on receipt | Payment is expected as soon as the customer gets the invoice |
| Net 7, Net 15 | Due 7 or 15 days after the invoice date |
| Net 30 | Due 30 days after the invoice date |
| Net 45, Net 60, Net 90 | Longer credit, common with large companies that pay on fixed cycles |
| Net 30 EOM | Due 30 days after the end of the month in which you invoiced |
| 2/10 Net 30 | 2% discount if paid within 10 days; otherwise the full amount is due in 30 |
| CIA / CWO | Cash in advance or cash with order: nothing ships until it is paid |
How to count the due date
Two details decide the date: when the clock starts and what counts as a day.
When the clock starts. Unless the terms say otherwise, the usual reading is the invoice date. Large buyers often count from the day they receive a correct invoice, and some count from delivery or acceptance of the work. Federal agencies are the clearest example: under the Prompt Payment Act, when the contract does not set another date, payment is due 30 days after the agency receives a proper invoice. An invoice missing required information does not start that clock until a corrected one arrives.
What counts as a day. Net terms are calendar days, weekends and holidays included. The federal rule spells this out, and adds that when the due date falls on a weekend or federal holiday, payment is due the next business day. Private customers do not have to follow that rule, so write the date and remove the question.
Here is an invoice dated Monday, November 2, 2026:
| Terms | Due date | Day of the week |
|---|---|---|
| Net 15 | November 17, 2026 | Tuesday |
| Net 30 | December 2, 2026 | Wednesday |
| Net 45 | December 17, 2026 | Thursday |
| Net 60 | January 1, 2027 | Friday (New Year’s Day) |
| Net 90 | January 31, 2027 | Sunday |
| Net 30 EOM | December 30, 2026 | Wednesday |
Two of those dates land on a holiday or a weekend. If you sell on Net 60 or Net 90, expect payment on the next business day and plan your cash for it.
How to word Net 30 on a quote and an invoice
The terms belong on the quote first. A buyer who approves a price with “Net 30” next to it has agreed to the terms before you start the work; a buyer who sees Net 30 for the first time on the invoice can reasonably argue about it.
On the invoice, a clear Net 30 block has five parts:
- the terms, written the standard way (“Net 30”);
- the starting point, if it is not the invoice date;
- the actual due date, written out as a date;
- the amount due, in dollars;
- how to pay and what reference to include, such as the invoice number and PO number.
Wording you can copy, from shortest to most complete:
Terms: Net 30. Due date: December 2, 2026.
Payment terms: Net 30. The full amount of $8,400.00 is due within 30 days of the invoice date, on or before December 2, 2026. Pay online at the link in this email or by ACH to the account below, and include invoice #1043 and PO 7781 in the reference.
Terms: 2/10 Net 30. Take 2% ($168.00) off if paid by November 12, 2026. Otherwise, the full $8,400.00 is due by December 2, 2026.
And on the quote, when you also ask for a deposit:
Payment: 30% deposit ($2,520.00) on approval. The balance of $5,880.00 is due Net 30 from approval.
Avoid “Payment due in 30 days” without a date, “Net 30” on the invoice when the contract says something else, and terms printed in light gray at the bottom of page 2. Accounts payable teams enter the due date into their system from what they see first.
Net 30, Net 15, or due on receipt
| Due on receipt | Net 15 | Net 30 | |
|---|---|---|---|
| When you get paid | When the customer gets to it | About two weeks | About a month, often later |
| Friction for the buyer | Highest: they pay before their next payment run | Medium | Lowest for companies on monthly cycles |
| Best fit | New customers, one-off jobs, individuals | Repeat customers with small invoices | Established accounts and companies with a purchase order process |
Many larger buyers do not choose the terms at all: their accounts payable policy pays on Net 30, Net 45, or Net 60, and a vendor who insists on due on receipt still gets paid on the company’s next cycle. In that case, the useful negotiation is not the number of days but the date the clock starts and how quickly an invoice gets approved.
When to offer Net 30, and when not to
Before you say yes, answer four questions:
- Can you fund it? Net 30 means your cash for the job arrives a month or more after you pay for materials, labor, and subcontractors.
- Does the customer need it? If their policy requires it, refusing may cost you the account. If it is just a request, a deposit plus Net 15 may work for both of you.
- What is their track record? A customer who paid the last six invoices on day 31 is a different risk from a first order.
- Does the margin cover the wait? Thin margins and long terms are a bad mix.
A quick way to size the cash you are lending: your average receivables are roughly your monthly credit sales multiplied by the days customers actually take to pay, divided by 30.
| Monthly sales on credit | Customers pay in | Cash tied up in receivables |
|---|---|---|
| $40,000 | 30 days | about $40,000 |
| $40,000 | 45 days | about $60,000 |
| $40,000 | 60 days | about $80,000 |
Moving a customer from Net 30 to Net 60 does not change the sale; it doubles the money you are carrying for them.
There is also a tax timing question. According to IRS Publication 538, under the accrual method you generally report income in the year you earn it, regardless of when payment is received; under the cash method, in the year you receive it. If you use the accrual method, a large Net 60 invoice issued in December can count as this year’s income even though the money arrives next year. Ask your CPA which method you use before you extend long terms at year-end.
What an early-payment discount really costs
“2/10 Net 30” sounds small. It is not. The customer who pays on day 10 instead of day 30 gets 2% for paying 20 days early. In annual terms:
2 ÷ 98 × 365 ÷ 20 ≈ 37%
That is an expensive way to borrow, so offer it only when getting paid 20 days sooner is worth that much to you. A 1% discount on the same schedule works out to about 18%. The credit article covers when a discount makes sense as a policy.
How Cord handles Net 30
In Cord, payment terms live on the quote and carry through to the invoice:
- Seven terms: Due on receipt, Net 7, Net 15, Net 30, Net 45, Net 60, and Net 90. Due on receipt, Net 15, Net 30, and Net 60 appear as chips in the quote editor; the rest are under Other term.
- Defaults: set one for your account and one for each client. The client’s term is preselected when you pick them, and you can change it on any quote.
- Due date: on a quote, Cord counts calendar days from the client’s approval. The invoice for that quote keeps the same due date. A standalone invoice takes its due date from the term you choose when you create it.
- What the client sees: after approving a quote on Net 30, the link shows that the order is confirmed on credit and the date payment is due. The online payment button appears when that date arrives. An invoice can be paid as soon as you issue it.
- Reminders on every plan: a quote balance gets an email three days before the due date and another on the day. An open invoice follows a ladder that, by default, emails 7 and 1 days before the due date and 3, 7, 14, and 30 days after.
- Credit limit: each client can have one. Cord shows the open balance against it, but it is a signal, not a block; you decide whether to keep selling.
Cord does not add late fees or interest automatically today. From the Professional plan, the AI collections agent can draft the emails for overdue accounts. See how terms work end to end on the invoicing page, how each plan compares on pricing, and the step-by-step setup in Add credit terms.
Net 30 checklist
- The terms appear on the quote, before the customer approves.
- The invoice shows “Net 30” and the actual due date.
- The starting point is written down if it is not the invoice date.
- The invoice includes the PO number when the customer uses one.
- You know how much cash each customer on credit ties up.
- Late fees appear only if the customer agreed to them in advance.
- A reminder goes out before the due date, not only after it.
This article is general information about payment terms. It does not replace advice from your CPA or attorney on your contracts, your accounting method, or your state’s rules.
Frequently asked questions
What does Net 30 mean on an invoice?
The full invoice amount is due within 30 calendar days. Unless the terms name another starting point, such as delivery or receipt of the invoice, the 30 days are counted from the invoice date, and weekends and holidays count.
Does Net 30 start on the invoice date or when the customer receives the invoice?
Whatever the agreed terms say. Without other wording, the usual reading is the invoice date, while many large buyers and the federal government count from the day they receive a proper invoice. Print the actual due date on the invoice so nobody has to guess.
Is Net 30 the same as 30 business days?
No. Net terms count calendar days. An invoice dated Monday, November 2, 2026 on Net 30 is due Wednesday, December 2, 2026, with weekends and the Thanksgiving holiday counted along the way.
Can I charge a late fee on a Net 30 invoice?
Only if your customer agreed to it before the sale and it stays within your state's limits, which vary. Check with an attorney before adding one to your terms. Cord does not add late fees or interest to overdue invoices automatically today.
Which payment terms can I use in Cord?
Due on receipt, Net 7, Net 15, Net 30, Net 45, Net 60, and Net 90. You can set a default for your account and for each client, and change it on any quote. On a quote, the days are counted from the client's approval.