Payment terms are the quiet reason profitable B2B companies run short of cash. Terms typically run from the invoice date, and you send the invoice after you do the work, so a customer on net 30 can mean closer to 60 days from when your costs began to when the money arrives. The gap grows as the business does.
Terms typically start at the invoice, not the work
Net 30 means the customer has 30 days from the invoice date. If you do the work over a month and invoice at the end, the earliest work in that month has already been paid for out of your pocket for up to 30 days before the invoice goes out. Add the 30 day term and you are carrying that cost for roughly two months.
That assumes you invoice on time and invoice correctly. A late or returned invoice pushes the payment out further, which is why clean, prompt billing matters as much as the terms themselves.
Why growth makes the gap worse
A new customer adds costs immediately: people, materials, fuel, or subcontractors. It adds cash only after the first invoice is paid. A company that doubles its billing does not double its cash on hand, it doubles the size of the gap it is carrying every month.
That is why fast-growing businesses can feel more cash pressure in the week they win a big account than in the week before, even though the business is healthier on paper.
Ways to close the gap
- Shorten the terms. Ask for deposits, milestone billing, or net 15 on new accounts. Larger customers often will not move, but smaller ones may.
- Invoice sooner and more often. Weekly or per-delivery invoicing starts the clock earlier than one monthly invoice.
- Tighten collections. Reminders before a due date, and a quick follow-up after it, cut the average wait.
- Offer early-payment discounts carefully. A discount can speed payment, but it comes straight out of your margin.
- Finance the gap. Factoring and an A/R line of credit turn invoices into cash, and payroll funding covers work you have performed but not yet billed, so the terms stop setting your pace.
What to measure
Two measures show how your collections are doing. The first is your accounts receivable aging report, which shows what customers owe you and how long it has been outstanding. The second is your average days to collect, sometimes called days sales outstanding. If it is climbing, your gap is widening even if sales are steady. Neither one captures your full funding need, which also depends on what you spend before you are paid.
Matching the fix to the problem
If a few big invoices create the pinch, invoice factoring turns each one into cash. If your needs change week to week, an A/R line of credit lets you draw as needed. If payroll is the pressure while you wait to bill, payroll funding advances against work already performed. Our guide on factoring vs. an A/R line of credit helps you pick.