Net 30 Payment Terms: Meaning, 2/10 Net 30 and Getting Paid

Net 30 payment terms give your customer 30 days to pay the full invoice amount. Simple on paper, yet owners still get caught out by when the 30 days start, what a 2/10 discount really costs and why net 30 so often turns into 45 or 60 days. This guide covers all three, with a worked example you can check yourself.

Net 30 meaning: when do the 30 days start?

“Net” means the full amount, with no discount taken. “30” is the number of days the customer has to pay. So an invoice dated March 1 on net 30 terms is due on March 31.

The part that causes arguments is the start date. Counting from the invoice date is the usual default, but contracts can say otherwise:

• Invoice date. The simplest option, since both sides can see the date on the invoice.
• Receipt of invoice. Some larger buyers count from the day the invoice reaches them or is approved, which can quietly add days.
• Delivery or completion. The clock starts when the goods arrive or the work is accepted.
• End of month. “Net 30 EOM” means 30 days after the end of the month the invoice was issued, so a March 5 invoice would be due around April 30.

Write in your terms which date starts the clock and that you mean calendar days, then print the actual due date on every invoice (“Due: April 30”). Ambiguity here is where a lot of “we always pay at 45 days” conversations begin.

Construction has extra layers. Payment timing often follows the contract chain, and the average US subcontractor waits 96 days to be paid, according to Siteline. In Canada, the federal Prompt Payment for Construction Work Act gives the Crown 28 days to pay a proper invoice on federal projects, then 7 days down each tier, and Ontario, Saskatchewan and Alberta have their own regimes (Osler summary). If you work in construction, our construction page covers how AR works on progress billing.

Net 15, net 30, net 60 and net 90 compared

The last column is a simple example: if you bill $50,000 a month evenly and every customer pays exactly on time, net 60 keeps about two months of sales sitting in receivables instead of in your bank account. Late payers push those numbers higher.

Longer terms are not always a mistake. They can win a large customer. But price them in, and make sure you can fund the gap without floating payroll on a credit line. To see how your real collection time compares with your terms, run your numbers through the DSO calculator.

2/10 net 30: how early payment discounts work

“2/10 net 30” means the customer can take a 2% discount if they pay within 10 days. Otherwise, the full amount is due in 30 days.

Worked example

Example: a $10,000 invoice on 2/10 net 30 terms.

• Paid by day 10, the customer sends $9,800.
• Paid on day 30, the customer sends $10,000.

By skipping the discount, the customer keeps $9,800 for 20 extra days and pays $200 for that privilege. In other words, it is like borrowing $9,800 for 20 days at a cost of $200. Here is the math:

1. Cost for the 20 days: $200 / $9,800 = 2.04%.
2. Number of 20-day periods in a year: 365 / 20 = 18.25.
3. Annualized cost: 2.04% x 18.25 = about 37%.

The general formula is: discount % / (100% minus discount %) x 365 / (net days minus discount days). So a customer who passes on a 2/10 net 30 discount is effectively paying around 37% a year for 20 extra days of credit, and closer to 45% if you compound it. That is why a customer with cash on hand, or cheap credit, has a strong reason to take the discount.

Should you offer one?

From your side, the discount costs 2% of the invoice in exchange for cash 20 days sooner. That can make sense if your margins absorb it and the cash is worth more to you, for example because you would otherwise draw on a line of credit. It makes less sense on thin-margin work. Two practical rules:

• Print the discount amount and the exact cut-off date on the invoice, not just “2/10 net 30”.
• Decide in advance how you handle a customer who takes the discount after day 10, and say so in your terms. Unearned discounts are an easy leak to miss.

Late fees on net 30 invoices

A late fee or interest charge only works if the customer agreed to it before the work started, in your contract, quote or signed terms. Adding one after the fact usually starts an argument instead of a payment.

What you can charge, and how, depends on the law where you and your customer do business, and it varies by state and province. Before you add late fees or interest to your terms, ask an attorney what applies to you. Then decide whether you will actually apply them. A fee you never enforce teaches customers the due date is a suggestion.

How to set payment terms per customer

You do not have to give every customer net 30. Terms are a credit decision, and they can differ from one account to the next.

• Run a credit check on new accounts. A credit application, two or three trade references, a bank reference and a business credit report give you a reasonable picture. Set a credit limit, not just terms.
• Start new customers shorter. Net 15, or net 30 with a modest limit, then extend after a few months of on-time payment.
• Ask for deposits on large or custom orders. A deposit covers your materials and tells you the customer is committed.
• Use milestone billing on long projects. Bill at defined stages instead of one invoice at the end, so you are never carrying the whole job.
• Review terms when behavior changes. A customer who drifts from 30 to 50 days may need a lower limit or shorter terms, not more reminders.

Distributors with many accounts often group customers into tiers with standard limits and terms for each. Our wholesale and distribution page has more on running AR at that volume.

How to get paid on net 30 (and on time)

Many late net 30 invoices were slowed down in the first week, not the last: a missing PO, a wrong inbox, an approval nobody chased. These habits keep them moving:

1. Invoice immediately. If the clock starts at the invoice date, every day you wait to bill is a day added to your cash cycle. Invoice when the goods ship or the work is signed off.
2. Make the invoice easy to approve. Correct legal entity, PO number, contact name, a due date written as a date, payment instructions and any backup the customer needs.
3. Confirm receipt. A few days after sending, or about 7 days before the due date on larger invoices, confirm it is in their system and approved.
4. Remind on the due date. A short, friendly email with the invoice attached.
5. Follow a cadence after that. A check at 3 days late, a phone call at around 7 to 10 days, and a written confirmation of every promised payment date.
6. Review your aging report weekly. Weekly AR aging and cash-flow reporting catches slow payers while their invoices are still young.

If following up on every invoice is the part that keeps slipping, Extra Myle can run this follow-up cadence for you, in your company’s name. You can also book a free AR review to see where your net 30 invoices are getting stuck.

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