If you want to get paid faster and you work with individuals or small clients, use Net 15. If you bill larger companies that run formal accounts-payable cycles, Net 30 is the safer, more expected choice. The right answer depends less on a rule and more on who your client is and how long your cash can wait.
Below, we break down what each term means, how they affect your cash flow, and how to decide which one belongs on your next invoice.
What do Net 30 and Net 15 mean?
"Net" refers to the full amount owed, and the number is the count of days the client has to pay after the invoice date.
- Net 30 means payment is due 30 calendar days after the invoice date.
- Net 15 means payment is due 15 calendar days after the invoice date.
So an invoice dated June 1 with Net 30 terms is due July 1, while the same invoice with Net 15 terms is due June 16. The terms set the deadline; they do not change the amount.
A quick note on the start date: most US invoices count from the invoice date, not the delivery date or the date the client receives it. Spell this out on the invoice so there is no ambiguity later.
Net 30 vs Net 15: side-by-side comparison
| Factor | Net 15 | Net 30 |
|---|---|---|
| Payment due | 15 days after invoice | 30 days after invoice |
| Cash flow speed | Faster (paid ~2 weeks sooner) | Slower |
| Best for | Freelancers, solo contractors, small clients | Larger companies, B2B, enterprise |
| Client expectation | Less standard, may need a heads-up | Widely expected default |
| Late-payment risk | Lower exposure per cycle | Longer window for delays to compound |
Why payment terms matter more than they seem
Payment terms are not just a deadline. They directly shape your cash flow, and cash flow is where most small businesses feel the squeeze.
In the Federal Reserve's 2024 Small Business Credit Survey, 51% of small employer firms cited uneven cash flows as a financial challenge (Federal Reserve, 2025). Shorter terms are one of the few levers you fully control to smooth that out.
The problem compounds when invoices go unpaid. Intuit QuickBooks found that 56% of US small businesses were owed money from unpaid invoices, averaging about $17,500 each (Intuit QuickBooks, 2025). The same report noted that 47% of businesses had a portion of their invoices overdue by more than 30 days (Intuit QuickBooks, 2025).
The takeaway: every extra day of terms is an extra day a payment can slip. Shorter terms shrink that window.
When to use Net 15
Net 15 is the better fit when faster cash is the priority and your clients can act quickly.
Choose Net 15 if:
- You are a freelancer or solo contractor who needs steady cash flow.
- Your clients are individuals or small businesses that pay by card or transfer, not through a slow AP department.
- The project is short or one-off, so there is no long relationship cushioning a late payment.
- You have thin reserves and cannot float work for a month.
For independent workers, shorter terms can be the difference between a smooth month and a stressful one. If you invoice clients regularly, a clean freelancer invoice template with Net 15 terms stated up front sets the expectation before work even begins.
When to use Net 30
Net 30 is the long-standing default in business-to-business invoicing, and there are good reasons it persists.
Choose Net 30 if:
- You bill mid-size or large companies that route invoices through accounts payable.
- The client expects or requires 30-day terms in their vendor agreements.
- You have enough reserves to comfortably wait a month for payment.
- You are competing for a contract where shorter terms could be a dealbreaker.
Larger buyers often have approval workflows, batch payment runs, and procurement rules that simply do not move on a 15-day clock. Insisting on Net 15 can stall the deal or push your invoice to the back of the queue. With these clients, Net 30 is not slower by accident; it matches how they actually operate.
How to speed up payment without shortening terms
You do not have to choose between fast cash and client-friendly terms. A few tactics help on either schedule.
Offer an early-payment discount
The most common format is 2/10 Net 30: the client gets a 2% discount if they pay within 10 days, otherwise the full amount is due in 30. This keeps a generous deadline while nudging cash in early.
Make paying effortless
Add a payment link or accept cards directly on the invoice. The fewer steps between "received" and "paid," the faster the money arrives.
State terms clearly and follow up
Put the due date in plain language and send a polite reminder before and after it passes. For a full playbook, see our guide on how to get paid on time.
You can apply all of these directly in Invoity's free invoice generator, which lets you set Net 15 or Net 30, add early-payment discounts, and include a clear due date in seconds.
So, which should you use?
Default to Net 15 if you are a freelancer or work with small, fast-moving clients and want to protect your cash flow. Default to Net 30 when you bill larger organizations that expect it.
If you are unsure, start with Net 15 for new or small clients and reserve Net 30 for established companies that require it. You can always negotiate, and you can set different terms for different clients on every invoice you send.
Frequently asked questions
What does Net 30 mean on an invoice?
Net 30 means the full invoice amount is due 30 calendar days after the invoice date. For example, an invoice dated June 1 with Net 30 terms is due July 1. The "net" refers to the total owed, and 30 is the number of days the client has to pay before the invoice is considered past due.
Is Net 15 better than Net 30?
Net 15 is not universally better, but it gets you paid about two weeks sooner, which helps cash flow. It works best with freelancers and small clients. Net 30 is better when you bill larger companies that expect standard 30-day terms and process invoices through formal accounts-payable systems.
Can I change payment terms between invoices?
Yes. Payment terms are set per invoice, so you can use Net 15 for one client and Net 30 for another, or change terms as a relationship evolves. The key is to state the terms clearly on each invoice and, ideally, agree to them in writing before you begin the work.
What is 2/10 Net 30?
2/10 Net 30 means the client may take a 2% discount if they pay within 10 days; otherwise the full amount is due in 30 days. It is a common way to encourage faster payment without shortening your standard deadline, rewarding early payers while keeping a 30-day window for everyone else.
The bottom line
Payment terms are a quiet but powerful tool. Net 15 protects cash flow for freelancers and small clients; Net 30 fits larger buyers who expect it. Match the term to the client, state it clearly, and make paying easy. Then create your invoice in seconds with Invoity's free invoice generator and pick the terms that get you paid on your schedule.