Business Credit Scores Explained: D&B PAYDEX, Experian, Equifax, FICO SBSS

Your business has credit scores the moment it starts transacting under its own name — and they work almost nothing like personal FICO. There are four systems that matter, each with its own scale and logic; the reports are public (any supplier, landlord, or competitor can buy one); and none of the accuracy protections you're used to from consumer credit apply — the FCRA doesn't cover business files. If you've never looked at yours, someone who was deciding whether to extend you terms probably has.

The four scores

Two of those rows contain the strategy. PAYDEX only measures payment timing — and here's the quirk: paying exactly on time earns an 80, while scores above 80 require paying early. A business that pays invoices 30 days before due can reach 90–100; one that's never been a day late in its life plateaus at 80. FICO SBSS blends in your personal credit — for young businesses it's weighted heavily toward the owner's file, which is why a new LLC's borrowing ability is really the owner's score wearing a business suit for the first year or two, and why lenders still demand personal guarantees regardless.

How the file gets built (and why yours might be empty)

Business bureaus only know what gets reported to them — and most business transactions never are. Your rent, your card processor, your biggest supplier: unless they actively report, they build nothing. That's why a profitable five-year-old business can have a thinner file than a one-year-old that set up reporting tradelines deliberately. The mechanical prerequisites: an EIN, a business bank account, a free D-U-N-S number from D&B (never pay for one — the paid "credit builder" upsells are optional), and vendors/cards that report — net-30 accounts are the classic starters.

Why this is worth an hour of your time

Three doors swing on these scores. Supplier terms: net-30/60 credit lines from vendors are underwritten on PAYDEX — good scores turn COD relationships into free 30-day float. Financing: lines of credit and SBA loans check business bureaus alongside personal; a seasoned file gets pricing a guarantee-only application doesn't. Separation: every dollar of credit underwritten on the business's file is a dollar that stops depending on your personal report — the long game that eventually gets personal guarantees negotiated down. Check your reports before a lender does: D&B, Experian, and Equifax all sell business reports (and dispute processes exist, just without FCRA teeth) — errors in business files are common precisely because nobody's looking.

Frequently Asked

Questions readers ask

01Does my business have a credit score if I never applied for credit?+

Possibly — bureaus open files from public records (state registration, UCC filings) and any vendor that reports, so a file can exist with a score you've never influenced. Equally possible: no file at all. Either state is worth knowing, because suppliers checking an empty or accidental file will default you to prepayment terms.

02Do business credit scores affect my personal credit?+

Not directly — the files are separate, and business accounts generally don't appear on your consumer report (most business card issuers report only serious delinquency). The linkage runs the other way: FICO SBSS and most small-business underwriting pull your personal score in, and personal guarantees put your personal assets behind business debt regardless of what any score says.

03How long does it take to build a usable business credit file?+

With deliberate setup — EIN, D-U-N-S, three or more reporting tradelines paid early — a scoreable PAYDEX file typically forms in three to six months. Reaching the file depth that moves lender pricing takes one to two years. The passive alternative (waiting for it to happen) routinely takes never; reporting is opt-in for your creditors.

04Can anyone really pull my business credit report?+

Yes — business reports are commercial products sold to anyone who pays, no permissible-purpose requirement, no notification to you. Suppliers, landlords, potential acquirers, and competitors all use this. It cuts both ways: you can pull reports on companies before extending them terms, which is exactly what the net-30 vendors deciding on you are doing.