Net 30 Invoice Terms Explained (And When to Use Them)
By ActiveEngine · 5 min read · Last updated September 3, 2026
What "net 30" means
Net 30 means the full invoice total is due within 30 calendar days of the invoice date — not 30 days from when the client opens the email, and not 30 business days.
"Net" simply means the full amount with no deductions. "Net 30" says nothing about late fees or early-payment discounts — those need their own line.
Net 15 vs net 30 vs due-on-receipt
Due on receipt works for small residential jobs where you're standing in the driveway. Net 15 is the sweet spot for most residential and small commercial work. Net 30 is standard for commercial clients and general contractors with formal pay cycles.
Shorter terms almost always serve a small trade business better. Clients rarely need 30 days, and offering it trains them to pay slowly.
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A late fee only holds up if it was disclosed before the work started, so put it in your estimate and repeat it on the invoice: "A late fee of 1.5% per month applies to balances unpaid after the due date."
1.5% per month (18% annually) is the common ceiling, but some states cap it lower — check yours. And enforce it consistently or drop it; selectively applied fees create arguments, not payments.
What most contractors actually use
In practice: due on receipt or net 15 for homeowners, net 30 for commercial, and 25–50% deposits up front on any job over a few thousand dollars. Multi-week jobs bill at milestones instead of one big final invoice.
Whatever you choose, print the actual due date on the invoice. "Due October 3, 2026" gets paid faster than "Net 30" because nobody has to calculate anything.