Net 30 became the default payment term largely because it was convenient for corporate accounts payable departments. But most freelancers are not supplying Fortune 500 companies — and 30 days of waiting for payment you’ve already earned is rarely necessary.
What Net 15 means
“Net 15” is invoicing shorthand that means: the full (net) amount is due within 15 calendar days of the invoice date.
If you issue an invoice on June 1, payment is due by June 16. That’s it — there’s no discount, no penalty structure built into the term itself (though you can add a late fee separately), and no ambiguity about partial payments.
The word “net” in Net 15, Net 30, or Net 7 simply means the full invoice balance. It distinguishes “full payment” terms from discount terms like “2/10 Net 30,” which offer an early payment discount.
Net 15 vs. Net 30: the practical difference
The difference between these two terms is not just 15 days — it’s a cash flow difference that compounds over a freelance career.
If you issue four invoices a month at $2,000 each:
- Net 30: You’re always waiting on up to $8,000 in outstanding payments
- Net 15: That outstanding balance is roughly half as large at any given time
Faster cash flow means less stress when an unexpected expense hits, more flexibility to take on (or decline) projects, and less dependence on a business credit line or emergency savings.
Switching from Net 30 to Net 15 doesn’t just change a date on your invoices — it changes the structure of your cash flow in a way you’ll notice by the second month.
How to write Net 15 on an invoice
Clear, plain-English wording works best:
Formal version: “Payment terms: Net 15. Full payment due by June 16, 2026.”
Plain English: “Payment is due within 15 days of this invoice date (by June 16, 2026).”
With late fee: “Payment due within 15 days (by June 16, 2026). A 1.5% monthly late fee applies to balances outstanding after that date.”
Always include the calendar date alongside the Net 15 label. Clients — especially those who don’t regularly deal with invoicing — may not automatically calculate 15 days from the invoice date. An explicit deadline removes any ambiguity.
Who Net 15 works for
Freelancers with smaller-to-mid-sized clients. Agencies, small businesses, and startups generally have the flexibility to pay within 15 days, especially for smaller invoices.
Regular, repeat clients. Once you’ve worked with someone two or three times and they know your invoicing pattern, 15-day terms are easy for them to accommodate.
Digital project work. Web, design, writing, and consulting work delivered electronically often gets reviewed and approved quickly. There’s no shipping delay or physical delivery process that would naturally extend the review timeline.
Who Net 15 may not work for
Large enterprise clients. Corporate procurement and accounts payable departments often have fixed payment cycles — Net 30 or Net 45 — that don’t bend for individual vendor preferences. Know your client type before setting terms.
Clients with complex internal approval processes. If a $20,000 project invoice needs sign-off from three managers before it can go to AP, 15 days may not be enough. Discuss this before invoicing, not after.
Setting terms before the project starts
The smoothest way to establish Net 15 is to include it in your proposal or project agreement — before you do any work. Clients who see and approve your terms upfront almost never push back when the invoice arrives with those same terms stated.
A simple line in your proposal: “Invoices are payable within 15 days of delivery. A late fee of 1.5% per month applies to overdue balances.”
Waco3 lets you set your default payment terms once and have them appear automatically on every invoice, so you never forget to include them — and the client sees the same terms in the proposal they signed and the invoice they receive.
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