How to Offer Trade Credit to B2B Customers (Without Getting Burned)

# How to Offer Trade Credit to B2B Customers (Without Getting Burned)

Walsh Plumbing extended net-30 terms to a property management firm in March. By September, that firm owed $18,400 across four invoices and stopped returning calls. The owner had a credit application on file, but it asked for nothing useful: just the business name, EIN, and a single trade reference that turned out to be the firm's sister company.

Trade credit is how most B2B work actually gets done. A supplier hands over goods or services and waits 30, 60, or 90 days for payment. It is the oldest form of business finance there is, and for small operators it usually beats taking on bank debt. But when it goes wrong, it goes wrong slowly: a friendly customer drifts past 30 days, then 60, then stops picking up. By the time you treat it as a problem, three more invoices are sitting underneath it.

This guide is for the small business owner who already offers terms (or is about to), wants to keep doing it, and wants to stop bleeding cash when a customer drags.

## What Trade Credit Actually Costs You When It Goes Wrong

There is a real cost to extending terms. The smaller you are, the heavier it lands.

Industry data from U.S. B2B payment practice surveys shows suppliers typically write off between 5% and 9% of invoice value as uncollectable each year. For a small operator doing $400,000 in B2B revenue, that is anywhere from $20,000 to $36,000 walked out the door before any other loss. On a 12% net margin, you would need to invoice an extra $167,000 to $300,000 the following year just to break even on what you wrote off. That is the math nobody runs at the credit-decision stage, and the reason a single bad customer can sink a small operator who otherwise has a healthy book.

The second cost is harder to see: float. Money sitting in a customer's account is money you cannot use for payroll, parts, or marketing. The U.S. small-business average for B2B days sales outstanding (DSO) sits in the low 40s, but solo and one-truck operators commonly report numbers closer to 55. That gap between your invoice age and how fast you actually need cash is what kills companies that never had a bad-debt problem on paper. For more on what that lost cash actually costs you over a year, see the true cost of bad debt for small business.

The third cost is your time. Every hour spent leaving voicemails, re-sending PDFs, and writing "just a friendly reminder" emails is an hour off the job. For a one-truck HVAC operator, ten hours a week on AR is a service call you did not run. At a $250 ticket and 50 service weeks, that is $125,000 in foregone revenue per year, before you count the work you do collect on.

If you are new to the concept itself, the glossary entry on trade credit lays out the basic mechanics, term structures, and risks.

## Who You Should Extend Trade Credit To (And Who You Shouldn't)

Not every B2B customer should get terms. The default for new accounts under $2,000 should be card or ACH on completion. Save trade credit for repeat customers, larger projects, and buyers who have a real reason they cannot pay on the spot (procurement department, end-of-month AP runs, etc.).

Three customer types you should not extend trade credit to on the first job:

1. **A company you cannot find on a state business registry.** If the legal entity does not show in the secretary of state's filings, you have no one to pursue if they walk. Every state offers a free entity search; it takes 90 seconds. 2. **A buyer who hesitates when you ask for two trade references.** A real B2B customer expects this question. A buyer who pushes back, complains, or "does not have time" is telling you exactly what they think of paying suppliers. 3. **A new customer with a rushed first job.** Real emergencies do happen, but "we need this today, we will send a PO tomorrow" is the most common pattern that ends in non-payment. The PO never arrives, and the rush is what pressured you to skip your own process.

For everyone else, build a tiered system. A common framework for small B2B suppliers:

| Customer status | Default terms | |----------------|---------------| | New, under $2,000 | Card or ACH on completion | | New, $2,000–$10,000 | 50% deposit, balance net-15 | | Established (3+ paid invoices) | Net-30 | | Established + 12 months clean | Net-45 if requested |

Match the credit you offer to the evidence you already have. Do not trust a story.

## The Five-Question Credit Application That Actually Works

Most small-business credit applications collect data nobody ever uses. The point of the form is not to gather information for filing. The point is to make the customer slow down and prove they are operating a real business.

The five questions that matter:

1. **Legal entity name + state of formation + EIN.** This is the only field that lets you sue if it comes to that. A DBA without an underlying entity is a dead end. 2. **Business address (not a PO box) + length of time at this address.** A business operating from a residential address for six months is a different risk profile than a 15-year operator with a leased shop. 3. **Two trade references with at least one in your industry.** Call both. Ask: "How long have they been a customer, what is their average invoice size, and have they ever gone past 30 days?" Note the answers in writing on the credit file. 4. **D&B D-U-N-S number and most recent PAYDEX score (if applicable).** A PAYDEX score above 80 means the customer pays on time or early. Below 50 is a flag worth a phone call before extending terms. 5. **Authorised signer with title and direct phone.** Verify the phone number lands on a real person at the real business before you ship or start work. A burner cell is a red flag.

A construction subcontractor in our recovery pipeline (3 trucks, residential electrical, Atlanta) lost $11,200 in 2024 on a single general contractor who provided a fake D-U-N-S number on the credit app. The form was filled out. Nobody verified the number. The D&B search would have taken four minutes.

## Set Terms That Match Your Cash Flow, Not Your Customer's

The mistake most small suppliers make is letting the customer dictate terms. A property manager asks for net-60. You say yes because you want the work. Three months later you are floating $40,000 across that one client while your insurance bill is due Friday and your supplier sent a reminder Monday morning.

The right answer is to reverse-engineer terms from your own cash conversion cycle. If you pay your suppliers net-30 and your techs weekly, you cannot afford to wait 60 days for revenue without either a line of credit or sitting on cash you would rather invest. A practical rule for small operators: do not offer terms longer than your supplier terms plus 10 days. That gives you a small float buffer without putting you upside down on every invoice.

Things to bake into every set of terms:

- A **late fee written into the invoice itself**. The common standard is 1.5% per month (about 18% APR), which most state usury laws allow on commercial accounts. Do not hide it in a PDF the customer never reads. Print it on the invoice in the same font as the total. - A **2/10 net 30 discount** on larger invoices. Customers who can pay early often will if the math is right (a 2% discount for paying 20 days early annualises to roughly 36%, which beats the float they earn on the cash). - A **clear written definition of what counts as a dispute**. "If you dispute any part of this invoice, you must put it in writing within 10 business days of receipt." Anything received after that window is treated as a payment delay, not a dispute. - A **right to suspend or stop work on overdue accounts**. If you build, ship, or service for a customer who is past due, you have just extended more trade credit to a buyer who has already shown you they do not pay.

For the trade-off between common term structures, the breakdown in net-30 vs net-60 vs net-90 payment terms is worth a read before you set your defaults.

## What to Do the Day an Invoice Goes Past Due

The window between day 1 and day 7 past due is the single biggest predictor of whether you will collect. Industry recovery curves from the Commercial Collection Agencies of America show probability of full payment drops below 73% at 30 days overdue and below 50% at 90 days. Every week you wait is roughly a 5-point hit to your odds of getting paid in full.

A workable process for a small operator:

**Day +1 (overdue by one day):** Automatic email. Friendly, concise, references the invoice number and total. "Hi Marcus, our records show invoice 4471 for $3,180 was due yesterday. If it is already in process, ignore this note. If not, here is the payment link."

**Day +3:** A phone call. Voicemail if no answer. Ask one question: "Is there anything blocking this from getting paid?" Most overdue invoices in the first week are admin issues, not refusal. Reach the right person and a large share clear within the week.

**Day +7:** A second call and a second email, this time with the late-fee notice. Stop the friendly tone and switch to procedural. "Invoice 4471 is now 7 days overdue. Per the terms on the invoice, a 1.5% late fee has been applied effective today. Please confirm a payment date by Friday."

**Day +14:** Escalation. Talk to the AP department directly if it is a larger company, or the owner if it is a small business. Stop accepting "I will get back to you next week."

**Day +30:** Suspend further work. Send a formal demand letter referencing the contract, the terms, and the consequences. Get it in writing and keep proof of delivery.

What NOT to do: do not avoid the conversation because the customer is also a friend, a referral source, or a "big account." The single most common pattern in invoices that go to 90 days overdue is a supplier who knew at day 10 something was wrong and waited because they did not want to seem pushy. The customer was going to ghost either way. You just gave away 80 days of time you could have used to act.

## The Hands-Off Alternative

The work above is the right work. It is also a part-time job. Most small suppliers who offer trade credit end up doing the day-by-day outreach themselves, late at night, when they should be quoting the next job.

Syntharra's AI voice agent runs that outreach for you. Connect QuickBooks, FreshBooks, Xero, or Square once. The moment an invoice hits 3 days past due, the agent calls the customer, confirms the invoice number and amount on file, asks for a payment date, and texts a Stripe link. You pay nothing monthly. Syntharra takes a 10% success fee only when an invoice gets recovered.

See how it works →