Early in my consulting career, I made the mistake of accepting whatever payment terms a client put in their vendor agreement without question. One contract said "Net 60" — and I discovered the hard way that meant I was effectively giving a two-month interest-free loan on every piece of work I delivered. By the time payment arrived, I had already paid my own bills out of savings and mentally moved on to other projects. It was deeply inefficient, and it was entirely avoidable.
Payment terms are not just boilerplate. They are a business decision that directly affects your cash flow, your stress levels, and your ability to plan. If you are new to freelance invoicing, our complete freelancer invoicing guide covers the full process from start to finish. This guide explains every major payment term you will encounter, when to use each one, and how to enforce them when clients push back or pay late.
Invoice payment terms are the conditions you set for when and how a client must pay you. They appear on every invoice and typically include a due date, accepted payment methods, and any applicable late payment penalties. Together, these terms create a shared understanding between you and your client about the payment timeline — and they form part of the binding commercial agreement between you.
Without clearly stated payment terms, you leave the due date open to interpretation. Some clients will assume they have 30 days by default. Others will pay when they feel like it. Explicitly stated terms remove this ambiguity and give you a legitimate basis to follow up when payment is overdue.
Net 30 is the most widely recognised payment term in business-to-business transactions. It means payment is due within 30 calendar days of the invoice date. If you send an invoice on March 1, payment is due by March 31. Note that "Net" refers to the net amount owed after any discounts, and the number refers to the number of days. Net 30 is standard in corporate environments because it aligns with many companies' internal accounts payable cycles. For freelancers and small businesses, however, Net 30 can create real cash flow strain when you are juggling multiple clients and projects simultaneously.
Net 15 gives clients 15 calendar days to pay from the invoice date. This is a practical middle ground — it is short enough to keep your cash flowing but long enough to allow most clients to process payments through their normal channels. I use Net 15 as my default for most freelance invoices under $5,000. The majority of clients accept it without comment, and when they do, I typically receive payment faster than I would on Net 30.
Net 7 is a one-week payment window. It is common for small, fast-turnaround jobs — a single article, a quick logo revision, a short consulting call. The brevity signals urgency without being aggressive. If you deliver a 500-word blog post and invoice immediately with Net 7, most clients will process payment before the week is out simply because the tight timeline keeps it top of mind.
Due on Receipt (sometimes written as "Payable upon receipt") means the invoice is due immediately — the moment the client receives it. In practice, this means the same day or within 24–48 hours. It is appropriate for cash-on-delivery-style transactions, very small amounts, or established clients who you know pay promptly. Using Due on Receipt with a new large client can feel pushy, so reserve it for situations where it genuinely makes sense.
EOM terms mean payment is due at the end of the calendar month in which the invoice was issued. So an invoice dated March 5 with EOM terms is due March 31. Some variations add a number — "EOM 30" means payment is due 30 days after the end of the invoice month, which can push the due date out considerably. EOM terms are common in publishing and media but are generally unfavourable for cash flow unless you invoice at the very start of the month.
The term "2/10 Net 30" sounds like jargon, but it is a simple and surprisingly effective tool. It means: take a 2% discount if you pay within 10 days; otherwise, the full amount is due within 30 days. You are essentially offering a small discount in exchange for faster payment.
For a $5,000 invoice, that 2% discount costs you $100. But if it means you receive $4,900 in 10 days rather than waiting 30+ days, it may well be worth it — particularly when you factor in the value of cash in hand for your own expenses and investments. Early payment discounts work best with larger clients who have the cash available but might otherwise deprioritise your invoice in their accounts payable queue.
There is no single right answer, but here is the framework I apply based on years of freelancing and consulting across different client types.
New clients with small invoices (under $1,000): Due on Receipt or Net 7. You do not yet have a payment history with this client, and a small invoice should not be outstanding for 30 days. Short terms also help you quickly gauge whether the client is reliable before you take on larger work.
New clients with large invoices (over $5,000): Net 14 or Net 15, combined with a deposit before work begins. The deposit reduces your risk, and the shorter terms keep the final payment from dragging on indefinitely.
Established clients who pay reliably: Match whatever works smoothly for your relationship. If a trusted client always pays on Net 30 and never causes problems, pushing them to Net 15 creates friction for no real benefit. Prioritise the relationship.
Large corporations and agencies: Accept Net 30, but negotiate to ensure it starts from the invoice date, not from when they "approve" or "process" the invoice — those are weasel words that push your effective payment date further out. Get the start date in writing.
B2C (billing individual consumers): Due on Receipt or at point of delivery. Consumers expect to pay for services immediately. Offering Net 30 to an individual client is unusual and unnecessary.
Stating payment terms on your invoice is only half the job. The other half is making sure they are honoured. Here is how to build enforcement into your process from the start.
First, include your payment terms in your contract or project agreement — not just on your invoice. When a client has signed a contract that explicitly states "invoices are payable within 15 days of the invoice date," they cannot later claim the terms were a surprise.
Second, set calendar reminders to follow up. Three days before the due date, send a brief, friendly reminder. The day after the due date, if payment has not arrived, send a more direct follow-up noting that the invoice is now overdue. After 7–10 days, escalate in tone and begin referencing next steps. We cover the full escalation process in our guide on how to handle late payments.
Third, stop delivering new work if an invoice is significantly overdue. This is the most powerful lever you have. Most clients who are slow to pay will suddenly find their accounts payable contact when they realise new deliverables are on hold.
Including a late payment clause on your invoices is both legal in most jurisdictions and genuinely effective at motivating prompt payment. A typical clause reads: "Invoices unpaid after [due date] will accrue interest at 1.5% per month (18% annually) on the outstanding balance."
To calculate late interest: take the invoice amount, multiply by the monthly rate, and apply it for each month (or partial month) overdue. On a $3,000 invoice at 1.5% monthly, that is $45 per month in interest. While you may not always choose to enforce the interest charge with a client you want to keep, having it in your terms gives you negotiating power and signals that you take payment seriously.
Design and creative services: Net 14 to Net 30 is standard. Most designers work on Net 30 with agency clients but push for Net 14 or Net 15 with direct clients. Deposits of 25–50% before work begins are the norm.
Web development and software: Milestone-based billing is common — a percentage on contract signing, another at design approval or staging delivery, and the final balance on launch. This manages cash flow across longer project timelines.
Consulting and professional services: Net 30 is the industry standard for larger consulting engagements, particularly with corporate clients. Independent consultants with leverage can negotiate Net 15 without much resistance.
Construction and trades: Progress billing is standard — invoices issued at defined stages of a project (foundation complete, framing complete, etc.). Retainage — where the client holds back 5–10% until final completion — is also common and should be accounted for in project pricing.
Set your payment terms directly on your invoice. InvoiceGen lets you add due dates and payment notes — free, no signup required.
Create Free InvoiceCan I change payment terms after sending an invoice?
Technically yes, but you need the client's agreement. If you sent an invoice with Net 30 terms and later want to request earlier payment, you can ask — but the client is under no obligation to comply with the new terms since the original invoice established the agreement. If you need to change terms for future invoices, simply update your invoice template and communicate the change to clients in advance. For a significant change, a brief email explaining the update is both professional and transparent.
What is the difference between Net 30 and EOM 30?
Net 30 means payment is due 30 days from the invoice date. EOM 30 means payment is due 30 days after the end of the month in which the invoice was issued. If you invoice on March 5 with Net 30, payment is due April 4. With EOM 30, payment would be due April 30 — nearly a month later. This distinction matters enormously for cash flow, particularly if you invoice early in the month. Always clarify which interpretation a client is using before you agree to their payment terms.
Is it legal to charge late payment fees?
Yes, in most countries, provided the late payment clause was clearly disclosed to the client before they agreed to the work. You cannot retroactively add a late fee clause after the fact. In the US, late payment interest is legal but rates may be subject to state usury laws. In the UK, the Late Payment of Commercial Debts (Interest) Act 1998 actually entitles businesses to charge statutory interest on overdue B2B invoices automatically, regardless of whether you include a clause. Check your local laws and include your late payment terms in both your contract and on every invoice.
What should I do if a client disputes the payment terms?
Refer to your original contract or project agreement, where the payment terms should be explicitly stated. If the terms are only on the invoice and the client claims they never agreed to them, this is a good reminder of why contracts matter. If there is a genuine misunderstanding, be willing to negotiate — perhaps meeting in the middle between your Net 15 and their preferred Net 30. Document any agreed changes in writing. If the dispute seems like a delaying tactic rather than a genuine disagreement, stand firm, reference your contract, and be prepared to pause further work until the existing invoice is resolved.