Invoice payment terms are the conditions that say when and how a client pays you: the due window (due on receipt, Net 15, Net 30), any deposit, which payment methods you accept, and what happens if the money is late. They belong on every invoice you send.
Most people never actually choose them. You copy Net 30 off the first invoice template you find, because it looks professional, and then spend the next two years wondering why money takes so long to arrive. Nobody sits you down and explains that you just handed every client a month of free credit.
This guide covers the four decisions hiding inside the phrase, what our own invoice data says about which due window actually gets you paid soonest, how to work out an exact due date, and what to do when a payment is late anyway.
The four decisions inside "payment terms"
"Payment terms" sounds like one setting. It is four, and you can decide each one separately.
1. The due window
How long the client has to pay. This is the one everyone means when they say payment terms, and the one covered in detail below.
2. The deposit
For anything longer than a couple of weeks, take a percentage before you start. It funds your costs, it proves the client is serious, and if the project dies halfway it turns a total loss into a partial one. On work where you buy materials up front, a deposit is not a negotiating position, it is the only thing standing between you and lending your client money.
3. The payment method
The fastest-paid invoice is the one that is easiest to pay. A payment link on the invoice beats asking someone to find your bank details, and both beat posting a cheque. Whatever you accept, say so on the invoice rather than making the client ask.
4. The late policy
What happens when the date passes. This is where most terms are quietly fictional, and there is a section on it below.
What our own invoices say about the due window
This is the part that usually gets argued about with opinions, so here are figures instead. They come from invoices raised in Billbooks, counted in aggregate.
Shorter terms genuinely bring the money in sooner. Invoices due on receipt are paid in 15.9 days on average, and Net 30 invoices in 47.2 days. That gap is roughly a month of your money sitting in someone else's account.
But "late" is mostly a matter of definition, and this trips people up. Of invoices issued due on receipt, 77% are paid after the day they were sent. That sounds alarming until you notice the due date on a due-on-receipt invoice is the day it goes out, so almost any payment at all counts as late. The share paid by the due date barely moves between the two: 39.1% for due on receipt against 42.3% for Net 30.
So a business on Net 30 looks better behaved on paper and waits an extra month for its money. If you are judging your own terms, count days to payment, not the percentage marked late.
Almost nobody ever changes the default. Nearly 8 in 10 active businesses (87 of 112, 78%) never change their default payment terms, so whatever the software set on day one is what their clients get for years. That is the real reason most invoices say what they say.
The practical read: a shorter window is worth choosing on purpose, and the expected consequence is the money arriving sooner rather than a dramatic change in who pays on time.
Every common term, in plain language
- Due on receipt. Payment expected now. Best for small jobs, first-time clients, and work you have already finished and handed over.
- Net 7, Net 15. A short, reasonable window for an ongoing relationship. Net 7 is normal for trades and weekly work.
- Net 30. A month. Appropriate when a corporate client's accounts payable process genuinely needs it. A habit, rather than a decision, almost everywhere else.
- Net 60, Net 90. Common with large companies and agencies. Treat it as a cost of winning that client, and price accordingly, because you are financing them.
- EOM. End of month. Net 30 EOM means 30 days from the end of the month the invoice was issued, so an invoice sent on the 2nd gets nearly two months.
- 2/10 Net 30. A 2% discount if paid within 10 days, otherwise the full amount in 30. Work out what that discount costs you annually before offering it; it is more expensive than it looks.
- CIA, cash in advance. Paid in full before work starts.
- Milestone or split billing. For projects, invoice against delivery stages rather than the calendar. Often better than any Net term, because payment tracks progress.
Work out the exact due date
Net 30 means 30 days from the invoice date, not "the end of next month" and not 30 working days. The confusion is worth removing from your invoices, because a client who is unsure of the date will default to later rather than sooner. EOM terms are where this goes wrong most often, since the clock starts at the end of the month rather than the invoice date.
Put the actual calendar date on the invoice, in words the client cannot misread. "Due 14 October 2026" settles an argument that "Net 30" starts.
Turn any payment term into a real date
Enter your invoice date and the terms you use, including EOM, and get the exact due date to put on the invoice. Free, and nothing to sign up for.
Matching the terms to the client
The same business can reasonably use different terms for different clients, and probably should.
- A new client you have never worked with. Deposit up front, short window on the balance. You are not being difficult, you are pricing an unknown.
- A long-standing client who always pays. Give them the longer window if they want it. The relationship is worth more than the fortnight.
- A large company. Their accounts payable runs on a cycle you cannot change, so find out what it is, invoice to hit it, and price the wait into the job.
- A client who has paid late before. Shorter terms, a deposit, and no new work started while an old invoice is open.
Writing the terms on the invoice
Terms only work if the client sees them before they need them. Put the due date near the total where the eye lands, not in small print at the bottom. State the accepted payment methods. If you charge for late payment, say the rate in one plain sentence. And keep the wording the same on every invoice, because terms that change invoice to invoice read as negotiable.
Agree them before the work, not after. Terms that first appear on the invoice are a request. Terms in an accepted quote are an agreement.
The late policy, and the fee almost nobody charges
Here is an uncomfortable figure from our own data. A late fee was set on zero of the 67,634 invoices the study checked, paid and unpaid alike, so no client ever saw one charged. Plenty of those invoices carried terms promising one.
A late fee you will not actually apply costs you more credibility than the interest was ever worth. So either mean it and apply it consistently, or leave it off and rely on a shorter window and a reminder schedule, which is what most small businesses genuinely do.
When a payment does go past its date, the typical delay is 11 days, and one in four late invoices runs 28 days or more. That first fortnight is usually not a refusal to pay, it is an invoice sitting in somebody's inbox. A polite reminder on the day it falls due recovers a lot of it.
If it goes further, work in this order. Re-send the invoice with the accepted quote attached so there is nothing to dispute. Ask for a payment date rather than a payment, which is a far easier question for someone short of money to answer. Offer to split it if the amount is the problem. Put new work on hold, politely and in writing, before the debt grows.
If you are freelancing or working for yourself
Two things matter more when it is just you.
Get the scope in writing, not just the terms. Most freelance payment disputes are not really about payment, they are about what was included. A short written scope, with what happens to extra requests, prevents more late payments than any late fee.
Do not let one client's terms set your cash flow. If your largest client pays on Net 60 and they are most of your income, you are running your business on their calendar. Either shorten their terms, take a deposit, or hold enough cash to cover the gap. Knowing which of those you are relying on is the point.
Agencies will often tell you their terms are fixed. Sometimes that is true. It is still worth asking for a deposit or a shorter window on the first project, because the answer costs nothing and occasionally it is yes.
Three free tools for getting the terms right
Frequently asked questions
What does Net 30 mean on an invoice?
Net 30 means the full amount is due 30 calendar days from the invoice date, not 30 working days and not the end of the following month. In our invoice data, Net 30 invoices are paid in 47.2 days on average, so the real wait is usually longer than the term suggests.
What are the most common invoice payment terms?
Due on receipt, Net 7, Net 15 and Net 30 cover most small business invoicing, with Net 60 and Net 90 appearing with larger companies. EOM terms count from the end of the month, and 2/10 Net 30 offers a 2% discount for paying within 10 days.
Which payment terms get you paid fastest?
Shorter ones, measurably. Invoices due on receipt are paid in 15.9 days on average against 47.2 days for Net 30. The share paid by the due date barely differs between them, so the gain is in days waited rather than in clients behaving differently.
Should I charge a late fee?
Only if you will actually apply it. A late fee was set on none of the 67,634 invoices in our payment study, so the promise is common and the charge is not. An unenforced fee costs more credibility than the interest is worth.
Can I use different payment terms for different clients?
Yes, and most established businesses do. A new client can have a deposit and a short window while a long-standing one keeps a longer term. What matters is that the terms are agreed before the work and stated the same way on every invoice.
When should I ask for a deposit?
Whenever the work runs longer than a couple of weeks, or whenever you buy materials before you are paid. A deposit funds your costs, confirms the client is serious, and limits the loss if the project stops partway.
Where do payment terms go on the invoice?
Next to the total, where the eye lands, with the due date as a real calendar date rather than only as a term. Put the accepted payment methods beside it, so the client never has to ask how to pay you.
