Lesson B102.2 · Business Finance 102: Bank-Ready
Business credit: build a file lenders can see
4-minute read · Figures checked October 2026
Photo: Andrea Piacquadio / Pexels, Pexels License
The short answer
Business credit is the record of how your company pays its suppliers and lenders, kept by business credit bureaus such as Dun & Bradstreet and Experian. To build it, get a free D-U-N-S number, buy from suppliers that report your payments, and pay them early. Your personal credit still counts, because lenders usually ask owners to guarantee business loans personally.
How business credit works
A business credit report lists your company's name, address and key details, plus how it has paid the suppliers and lenders that report to that bureau.
Dun & Bradstreet's PAYDEX score runs 1 to 100. It's built from the payments suppliers have reported over the last two years, and it's weighted by dollars, so your big bills count more than your small ones.
| PAYDEX | What it means |
|---|---|
| Over 80 | Pays ahead of terms |
| 80 | Pays on terms |
| 70 | About 15 days late |
| 50 | About 30 days late |
Experian's business scores also run 1 to 100, and a higher score means lower risk. Lenders and suppliers can pull these reports.
Build the file in five steps
- Get a D-U-N-S number. It's free from Dun & Bradstreet, though it can take up to 30 business days. You don't have to buy anything to get one.
- Look the same everywhere. Use the same legal name, address and phone on your bank account, licenses, insurance, website and supplier accounts. Mismatches split your history or hide it.
- Buy from suppliers that report. Not every supplier reports payments to a business bureau. Ask your sealer, crack-filler and paint suppliers whether they do, and to which bureau. Use those accounts for materials you'd buy anyway.
- Pay early. A PAYDEX of 80 means you pay on terms. Paying before the due date can lift it above 80.
- Check your file. Dun & Bradstreet's free D-U-N-S Profile Manager lets owners and officers view the file, request updates and dispute wrong payment records.
Example (made-up numbers). Lena runs the office at a 6-person sealcoating company. The sealer supplier reports payments to Dun & Bradstreet and gives net-30 terms. Last year she often paid on day 45, which is 15 days late: a pattern that points to a PAYDEX around 70. This season she pays every invoice on day 20. Same supplier, same materials, and as those payments are reported, the company's record moves toward paying ahead of terms.
Personal credit still counts
For most small companies, business credit adds to personal credit. It doesn't replace it. Under SBA rules, owners of 20% or more generally must guarantee the loan personally, and one large bank says personal guarantees are common. Many equipment lenders publish the personal credit scores they look for in owners (B102.6). So expect your personal credit to be part of most applications.
- Check your personal reports free every week at AnnualCreditReport.com.
- Disputing a mistake is free. Write to the credit bureau and to the business that reported it.
- Keep business costs off personal cards and personal costs out of the business account. Lenders read both, and mixing them muddies each one.
- Never borrow just to build credit, business or personal. A loan you don't need fails the first Borrowing Rule: it has to pay for something that earns money.
Your Move
Do this week
- Look up your company or apply for a free D-U-N-S number.
- Check that your legal name, address and phone match on your bank account, licenses, insurance and supplier accounts.
- Ask your two biggest suppliers whether they report payments to a business bureau. Confirm two that do.
- Pay their next invoices before the due date.
Log it: Business credit file started.
Common questions
Is a D-U-N-S number free?
Yes. Dun & Bradstreet issues it free, and it can take up to 30 business days.
Do I need a business credit card to build business credit?
No. Supplier accounts paid early build the file without paying interest. If you use a business card, pay it in full every month and never take a cash advance.
Does business credit replace my personal credit?
Not for most small companies. Lenders usually ask owners to guarantee loans, so they check both.
Watch out for
- Anyone who charges up front to fix your credit. For personal credit, the FTC says it's illegal for a credit repair company to charge you before it helps you, and you get three days to cancel.
- Promises to remove late payments that really happened. No one can legally remove information that's accurate and current.
- Offers to create a "new credit identity" or hide your credit history, such as by getting an EIN to use in place of your Social Security number. The FTC calls that a scam.
- Accounts opened just to build a score. Buy only what the business needs.
Free help
- AnnualCreditReport.com: free weekly personal credit reports from all three bureaus, or call 1-877-322-8228 (FTC: free credit reports).
- FTC: fixing your credit, including how to dispute errors yourself.
- Small Business Development Centers (find your SBDC) and SCORE: free advice on setting up supplier accounts and business banking.
Free practice
Lesson check
5 questions on this lesson, one at a time, with the answer and the reason after each. Pass with 4 right, including every must-know question.
This is general education, not tax, legal, investment or insurance advice. Rules change and every situation is different. Check the sources below, and talk to a qualified professional before you act on it.
Sources
- Dun & Bradstreet: PAYDEX score fact sheet; Get a D-U-N-S number; D-U-N-S Profile Manager
- Experian: Business credit score
- eCFR: 13 CFR 120.160, loan conditions
- Bank of America: Factors that impact loan decisions
- FTC: Free credit reports; Fixing your credit FAQs
- America's SBDC: Find your SBDC; SCORE: score.org