Net 15 means you have 15 days after the invoice date to pay, not from when you receive the goods
Net 15 is a payment important date written on an invoice. It tells you that payment is due 15 calendar days from the date printed on the invoice itself — not from the day you receive the shipment, not from the day you open the box, but from the invoice date. If an invoice is dated January 10, Net 15 means payment is due by January 25.
This term appears most often in business-to-business transactions: one company invoices another for products or services rendered. You might see it on an invoice from a supplier, a contractor, or a vendor. It is a standard way to say "you do not have to pay when ready, but here is your important date."
The word "net" in accounting means the final amount owed after any discounts or deductions. So Net 15 is shorthand for "the net amount is due in 15 days." It is different from terms like "2/10 Net 30," which means you get a 2 percent discount if you pay within 10 days, but the full amount is due in 30 days if you do not take the discount.
Key Takeaways
- Net 15 is a 15-day payment window that starts on the invoice date, not the delivery date or the date you open the invoice.
- Missing the Net 15 important date can trigger late fees, damage your business credit, or cause the vendor to stop extending credit to you.
- The invoice itself will show the due date calculated from the Net 15 term, so you do not have to do the math yourself.
- Net 15 is faster than Net 30 or Net 60, which means you have less time to gather funds before payment is due.
- Some vendors offer early-payment discounts (like 2/10 Net 15) that reward you for paying before the full 15 days pass.
How the 15-day clock starts and stops
The clock starts on the invoice date, which is printed at the top of the invoice document. This date is set by the vendor, not by you. Even if the invoice sits in your email for three days before you see it, the 15-day window began on the date the vendor issued it.
The due date is 15 calendar days later. If the invoice is dated on a Friday, day 15 falls on a Saturday — and in most cases, payment is still due that day, though some vendors or banks may treat weekend due dates as the following Monday. Check your invoice or ask the vendor if you are unsure.
Payment is considered made on the day the vendor receives the funds, not the day you send them. If you mail a check on day 14, it may not arrive until day 17, and you could be marked late. Electronic payments (ACH, wire transfer, credit card) typically clear the same day or next business day, so timing is more predictable.
What happens if you miss the Net 15 important date
Late payment usually triggers a late fee, which the vendor adds to your invoice. The amount varies — some vendors charge a flat fee (for example, $25), while others charge a percentage of the invoice amount (for example, 1.5 percent per month). The invoice or contract should state what the late fee is.
Repeated late payments can damage your business credit score, which affects your ability to borrow money or find favorable payment terms in the future. Vendors report payment history to business credit bureaus, and a pattern of late payments becomes visible to other creditors.
A vendor may also stop extending credit to you. If you miss a Net 15 important date, they might require payment upfront (called COD, or cash on delivery) for future orders, or they might decline to work with you at all. Rebuilding trust takes time.
Net 15 versus other common payment terms
Payment terms are usually written as "Net" followed by a number. The most common ones are Net 15, Net 30, and Net 60. The higher the number, the longer you have to pay.
| Term | Payment Due | Common Use |
|---|---|---|
| Net 15 | 15 days from invoice date | Vendors who need cash quickly; small suppliers |
| Net 30 | 30 days from invoice date | Standard for many B2B transactions; most common |
| Net 60 | 60 days from invoice date | Large established companies; government contracts |
| COD (Cash on Delivery) | Payment due when goods arrive | New vendors; high-risk transactions |
| Prepayment | Payment due before shipment | Custom orders; international sales |
Net 15 is faster than Net 30, which means the vendor expects payment sooner. If your business typically works on Net 30 terms with your own customers, but your suppliers require Net 15, you may face a cash flow squeeze — you have to pay before you collect from your customers.
Some vendors offer a discount for early payment, written as "2/10 Net 15." This means you get a 2 percent discount if you pay within 10 days, but the full amount is due in 15 days if you do not take the discount. The discount is an incentive for the vendor to get cash faster.
How to track Net 15 invoices so you do not miss the important date
The simplest method is to mark the due date on a calendar the moment you receive an invoice. Calculate 15 days from the invoice date (not the receipt date) and write it down. Many accounting software programs do this automatically — they flag invoices as due soon and send reminders.
If you use accounting software like QuickBooks, FreshBooks, or Wave, you can set up automatic payment reminders. The software tracks invoice dates and due dates, and alerts you before the important date passes. This is especially useful if you manage many invoices from different vendors.
If you pay by check, mail it at least three to five business days before the due date to account for delivery time. If you pay electronically (ACH or wire transfer), you can wait until the day before the due date, since the transfer usually clears the same day or next business day.
Keep a record of when you paid and how (check number, confirmation number, or wire reference). If a vendor later claims you paid late, you can prove the payment date.
Negotiating Net 15 terms with vendors
Net 15 is not always set in stone. If the term creates a cash flow problem for your business, you can ask the vendor for longer terms. Many vendors are willing to negotiate, especially if you are a regular customer or if you commit to larger orders.
The conversation might sound like: "We would like to work with you, but Net 15 is tight for our cash flow. Would you consider Net 30?" Some vendors will say yes. Others will hold firm, especially if they are small and need cash quickly to pay their own suppliers.
If the vendor will not budge on the important date, ask about an early-payment discount instead. If they offer 2/10 Net 15, you could pay on day 10 and save 2 percent — which might ease the cash flow pressure by giving you a few extra days and a financial incentive.
New vendors often require Net 15 or even COD until you build a payment history. Once you have paid on time for several invoices, you may be able to request longer terms.
Net 15 and your business cash flow
Net 15 terms affect how much cash you need on hand at any given time. If you have five vendors all on Net 15, and invoices arrive on different days, you might owe money to multiple vendors in the same week. This is called a cash flow crunch.
To manage this, some businesses stagger their orders so invoices do not all arrive at once. Others negotiate with vendors to have invoices due on specific dates (for example, the 15th and 30th of each month) so cash outflows are predictable.
If your business sells on Net 30 or Net 60 terms but buys on Net 15, you will collect payment from customers after you have already paid your suppliers. This is a common challenge for small businesses. One solution is to ask suppliers for longer terms as your business grows, or to build a cash reserve to cover the gap.
Frequently Asked Questions
Does Net 15 include weekends and holidays?
Yes, Net 15 means 15 calendar days, including weekends and holidays. If an invoice is dated Friday, January 10, the due date is Saturday, January 25. However, if payment is due on a weekend or holiday, many vendors accept payment on the next business day. Check your invoice or contact the vendor if you are unsure.
What if I pay on day 15 but the payment does not arrive until day 17?
Payment is considered made on the day the vendor receives the funds, not the day you send it. If you mail a check on day 15 and it arrives on day 17, you may be marked late and charged a late fee. To avoid this, send payment at least three to five business days early, or use electronic payment methods that clear the same day.
Can I ask a vendor to change Net 15 to Net 30?
Yes, you can ask. Many vendors will negotiate, especially if you are a regular customer or if you place large orders. Be honest about your cash flow needs. If the vendor refuses, ask about an early-payment discount (like 2/10 Net 15) as an alternative.
Is Net 15 the same as 15 days to pay from when I receive the invoice?
No. Net 15 is 15 days from the invoice date, which is printed on the invoice. If the invoice sits in your email for a week before you read it, the 15-day window has already started. Always check the invoice date, not the date you received it.
What does 2/10 Net 15 mean?
It means you get a 2 percent discount if you pay within 10 days of the invoice date. If you do not pay within 10 days, the full amount is due by day 15. For example, on a $1,000 invoice, paying by day 10 costs $980, but paying between day 11 and day 15 costs the full $1,000.