Net 15 Payment Terms: Meaning, Invoice Wording, and When to Use

Net 15 means the full invoice amount is due 15 calendar days after the invoice date. Not 15 business days, and not 15 days after the client opens the email. An invoice dated November 5 with net 15 terms is due November 20. "Payment is due within 15 days" is the same term written as a sentence. Net 15 is the right default for small commercial accounts and repeat clients who need a term but do not need a month: long enough to pass through a bookkeeper, short enough that the money lands in the same month the work was done. In CRMb, picking Net 15 on an invoice sets the due date 15 days after the invoice date, the invoice's Pay Now link lets the client pay online once Stripe is connected, and the payment reminders you set in Settings go out before and after that date.

Net 15 sits between the two terms most service businesses already know. Due on receipt is what a homeowner gets. Net 30 is what an accounts payable department expects. Net 15 is for everyone in the middle: the bakery with three locations, the dental office, the property owner with two buildings and a part-time bookkeeper. Those clients cannot pay from the driveway, and they do not need 30 days either. This guide covers what net 15 promises, how to count it, the wording to print, what it does to your cash, and how to keep 15 days from turning into 40.

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What net 15 payment terms mean

"Net" is the full amount owed after any credits or deposits. "15" is the number of days the client has to pay it. Together: the net amount is due 15 days after the invoice date.

Three rules decide the actual date:

• The clock starts on the invoice date. Not the day the work finished, not the day the client read the email. Work completed on Monday and invoiced on Friday is due 15 days after Friday.
• Days are calendar days. Weekends and holidays count. Fifteen business days is three weeks; net 15 is two weeks and a day.
• The invoice date is day zero. Add 15 to the date on the invoice. November 5 plus 15 is November 20.

When the fifteenth day lands on a weekend, the term does not move. An invoice dated Friday, November 6 is due Saturday, November 21. Most clients will pay it the Friday before or the Monday after, and it is not worth a late fee either way. If it matters to you, date invoices so they come due on a weekday.

The rest of the glossary, from due on receipt to 2/10 net 30, is in invoice payment terms explained.

Net 15 vs. due on receipt vs. net 30

One invoice, dated November 5, 2026, under each term:

Due on receipt works when the person who approved the work is the person who pays. There is nothing between them and their bank account. Due upon receipt covers that term in full.

Net 30 works when an accounts payable process sits between approval and payment. An invoice is received, coded, approved, and paid in a batch that runs on fixed dates. Asking that client for 15 days often just means every invoice shows as late in your aging report. Net 30 payment terms covers how to run that term without it drifting to 60.

Net 15 fits the client who has a process, but a short one. A bookkeeper comes in on Tuesdays. The owner signs checks twice a month. The office manager pays bills as they arrive but needs a few days to match the invoice to the work. Two weeks covers all of those, and it keeps the receivable inside the month it was earned in.

The rule for choosing: give the shortest term the client's payment process can actually meet. For a surprising number of small commercial clients, that is 15 days, and they were only ever on net 30 because nobody offered anything else.

Net 15 invoice wording

The term goes in three places on the invoice: the header beside the invoice date, the totals block beside the balance, and the notes.

Header: Invoice #2231 · Issued November 5, 2026 · Terms: Net 15 · Due November 20, 2026

Totals: Balance due November 20, 2026: $2,460.00

Notes: Payment is due within 15 days of the invoice date. Pay online using the link above, or by check made out to Harbor Electric LLC.

Notes, with a late fee: Payment is due within 15 days of the invoice date. Balances unpaid after November 20, 2026 accrue a late charge of 1.5% per month.

A few wording choices that matter:

• Print the date, not just the term. "Net 15" asks the client to do arithmetic. "Due November 20, 2026" is a deadline they can put in a calendar. Print both, with the date beside the balance.
• "Within 15 days of the invoice date," not "within 15 days." Fifteen days of what? Receipt, completion, and month-end are all answers a slow payer can choose. Name the starting point.
• "Net 15" and "payment is due within 15 days" are the same term. Use the short form in the header and the sentence in the notes. A client who has never seen the word "net" still understands the sentence.
• State it, do not ask it. "Payment is due within 15 days" is a term. "We would appreciate payment within 15 days" is a preference, and it is treated like one.

How to write a contractor invoice shows where each of these lines sits on the page. If you charge a late fee, invoice late fees for contractors covers the wording and the limits.

A net 15 invoice example

Harbor Electric finishes a lighting upgrade for a bakery with three locations on Thursday, November 5. The bakery's owner approved the quote; the bookkeeper, who works Tuesdays and Fridays, pays the bills.

The invoice goes out by email the afternoon the job closes, with a Pay Now link. Here is how the 15 days run:

• November 5. Invoice sent. Day zero.
• November 6. The bookkeeper's Friday. The invoice is matched to the approved quote and queued.
• November 17, morning. A reminder goes out three days before the due date, because Harbor set one in Settings. It is not a chase. It is a courtesy that puts the invoice back at the top of the inbox on a Tuesday, when the bookkeeper is in.
• November 17, afternoon. Paid by bank transfer through the link. The payment records itself on the invoice. Twelve days from invoice to cash.

Had the invoice gone unpaid, reminders at 3, 7, and 14 days overdue would have followed on November 23, November 27, and December 4, each one sent once, and all of them stopping the moment a payment was recorded.

Now the same job on net 30. Nothing about the bakery changes. The bookkeeper still comes in twice a week and could still pay in a fortnight. But the due date reads December 5, so the invoice sits in the "not yet" pile for another two and a half weeks, and it is paid on Friday, December 4. Same client, same work, same willingness to pay: 29 days instead of 12. The client paid when the invoice told them to.

What net 15 does to your cash

A term is a loan. On net 15 you are lending the client the invoice amount for about two weeks; on net 30, for a month. The size of that loan across all your clients is your receivable.

Take a shop that bills $30,000 a month to small commercial accounts.

The arithmetic is monthly billings times average days to pay, divided by 30. Moving those accounts from net 30 to net 15 leaves $19,000 more in the bank at all times. That is not profit. It is the same revenue arriving sooner, which is the difference between covering Friday's payroll from the account and covering it from a line of credit.

Slip tends to shrink with the term, too. A client who is a week late on a 30-day term has not thought about your invoice for five weeks. A client who is four days late on a 15-day term saw it last week.

Days sales outstanding turns this into one number to watch. A book that is mostly net 15 should run a DSO in the high teens to low twenties. If yours reads 35, the term is on the page and not in practice. Cash flow management for a service business covers the rest of the picture.

Variations: net 15 EOM, 1/10 net 15, and 15 days from completion

Clients and their contracts sometimes attach a modifier. Each one changes the due date.

Net 15 EOM. Fifteen days after the end of the month the invoice is dated in. Every November invoice is due December 15, whether it was dated November 5 or November 28. For an invoice early in the month that is 40 days, not 15. If a client asks for it, know that you are agreeing to something closer to net 30 on average.

1/10 net 15. A 1% discount if the invoice is paid within 10 days; otherwise the full amount is due at 15. On the $2,460 invoice above, that is $24.60 off for paying five days early. It sounds small, and it is expensive: giving up 1% to get money five days sooner works out to roughly 74% a year. Offer it only if those five days are worth more to you than that, which is rare.

Net 15 from completion or from receipt. Some contracts start the clock at an event other than the invoice date. "From completion" is fine if you invoice the day the job closes. "From receipt" adds the days the invoice spends in transit, which is nothing by email and close to a week by mail. Either way, write the resulting date on the invoice.

Net 7 and net 10. Shorter cousins of the same idea. Net 7 suits residential clients who will not pay from the driveway but should not get two weeks. Net 10 shows up mostly inside discount terms.

When a client's own paperwork states a term, read it before you sign. A purchase order that says "net 15 from approval" starts the clock on a date you do not control.

Who should get net 15

Small commercial accounts. Restaurants, retail shops, medical and dental offices, small property owners. They have a bookkeeper or an owner who pays bills on a rhythm, and that rhythm is almost always shorter than a month. Commercial vs. residential contracting covers how these clients differ from homeowners in more than payment.

Recurring service clients billed monthly. A maintenance contract invoiced on the 1st with net 15 terms is paid by mid-month, well before the next invoice goes out. On net 30, the next invoice lands while the last one is still open, and two unpaid invoices are harder to chase than one. See recurring maintenance contracts.

Established residential clients on larger jobs. A repeat customer finishing a $12,000 project may reasonably want a few days to move money. Net 15 on the final balance, after a deposit, is a fair answer. How to collect a deposit before work covers the first half of that arrangement.

Who should not. A homeowner on a one-off service call gets due on receipt; there is no reason to wait. A client with a formal 30-day accounts payable cycle gets net 30, because printing net 15 on their invoices will not change their batch dates. And a new client with no payment history gets a deposit before any term at all.

How to get paid in 15 days when the term says 15

Fifteen days leaves little room for a slow start. Four habits keep it honest.

1. Invoice the day the job closes. On net 30, invoicing three days late costs 10% of the term. On net 15 it costs 20%, and the client is never told about those three days. Build the invoice from the accepted quote so it takes minutes.

2. Put a way to pay on the invoice. A check has to be written, signed, and mailed, and the mail alone can take a third of a 15-day term. In CRMb, once your Stripe account is connected in Settings, the invoice email and PDF carry Pay Now, the client pays by card or, in the US, by bank transfer, and the payment records itself on the invoice.

3. Remind before the due date, not only after. On a short term, the most useful reminder is the one that arrives while there is still time to pay on schedule. In Settings, under Payment reminders, you can send one a set number of days early and up to six more at the overdue intervals you choose. They go out as your business and stop when a payment is recorded. If you would rather write your own, invoice payment reminder email templates has the wording for each stage.

4. Look at the aging report every week. A net 15 invoice that reaches 30 days is twice its term overdue and deserves a phone call, not a fifth email. The A/R aging report shows open invoices by how old they are. How to track accounts receivable covers the weekly routine, and what to do when a client won't pay an invoice covers the ones that get past it.

If a client pays part of a net 15 invoice on time and the rest later, record it as it happens; partial payments on an invoice covers how to record it and what to say about the balance that remains.

Frequently asked questions

What does net 15 mean on an invoice?

The full invoice amount is due 15 calendar days after the invoice date. An invoice dated November 5 is due November 20. "Net" refers to the total owed after any deposits or credits.

Is net 15 counted in business days or calendar days?

Calendar days. Weekends and holidays count. If you mean business days, you have to say so in writing, and it is simpler to print the actual due date instead.

Does net 15 start on the invoice date or when the client receives it?

The invoice date, unless your contract says otherwise. That is one reason to send invoices by email on the day they are dated: the invoice date and the receipt date are then the same day.

Is "payment is due within 15 days" the same as net 15?

Yes. It is the same term written as a sentence. The clearest version names the starting point: "Payment is due within 15 days of the invoice date."

What is the difference between net 15 and net 30?

Fifteen days. Net 15 is due 15 days after the invoice date and net 30 is due 30 days after. Net 15 suits small commercial clients with a short payment process; net 30 suits clients with a formal accounts payable cycle.

What does 1/10 net 15 mean?

The client may take a 1% discount if they pay within 10 days. Otherwise the full amount is due in 15 days. It is a costly way to get paid five days sooner, so most small service businesses do not offer it.

What does net 15 EOM mean?

Fifteen days after the end of the month in which the invoice is dated. Every invoice from November is due December 15. For invoices dated early in the month it is far longer than plain net 15.

What happens if a net 15 due date falls on a weekend?

The due date does not move. In practice clients pay the business day before or after. Treat a Monday payment on a Saturday due date as on time.

Can I charge a late fee on a net 15 invoice?

Yes, if the fee and the date it starts are written on the invoice and, ideally, on the quote the client accepted. Name the date: "Balances unpaid after November 20, 2026 accrue 1.5% per month."

Should I move my net 30 clients to net 15?

Ask, starting with the ones who already pay early. Put the new term on the next quote rather than changing it on an invoice for work already agreed. Clients with a fixed 30-day payment cycle will say no, and that is the right answer for them.

Getting started with CRMb

CRMb builds the invoice from the quote, sets the due date when you pick Net 15, puts a Pay Now link on the invoice email and PDF once Stripe is connected, records each online payment on its invoice, and sends the reminders you set before and after the due date. Open invoices and their age sit in the A/R aging report, on Mac, iPad, iPhone, and the web. Every plan starts with a 14-day free trial, no card required.