Most small business owners know their personal credit score. Many check it regularly, monitor it through apps like Credit Karma, and understand that it affects their ability to get a mortgage, car loan, or credit card. What far fewer business owners know is that their business has its own credit score, maintained by separate bureaus, governed by different rules, and carrying consequences that can be just as significant as a personal score. This guide breaks down what a business credit score is, how it differs from personal credit, and why it deserves your attention starting on day one.

The Three Major Business Credit Bureaus

Personal credit in the United States is dominated by three bureaus: Equifax, Experian, and TransUnion. Business credit has its own set of players, and they operate with meaningfully different methods and scoring scales.

Dun & Bradstreet: The PAYDEX Score

Dun and Bradstreet is the oldest and most widely used business credit bureau. Their primary score for small businesses is the PAYDEX score, which ranges from 0 to 100 and measures a single thing: how quickly a business pays its bills relative to agreed terms.

A PAYDEX score of 80 means the business pays on time on average. A score of 100 means the business consistently pays early. Scores below 80 indicate late payments, and scores below 50 indicate serious delinquency. Lenders and vendors use the PAYDEX score primarily to assess payment reliability rather than overall creditworthiness.

To have a PAYDEX score, your business needs a D-U-N-S Number, which is a free unique identifier that Dun and Bradstreet assigns to businesses. Getting one is a required first step in building a business credit profile.

Experian Business: The Intelliscore

Experian Business uses a scoring model called the Intelliscore Plus, which ranges from 1 to 100. Unlike PAYDEX, which focuses purely on payment timing, the Intelliscore factors in a broader range of variables: payment history, outstanding balances, utilization, company age, industry risk, and public records like liens and judgments.

The Intelliscore is also influenced by personal credit data for the business owner, particularly for newer businesses with thin commercial credit files. This means your personal credit habits can affect your business Intelliscore until the business builds enough of its own history.

Equifax Small Business: The Broader Range

Equifax maintains several business credit scores, with the most commonly referenced being the Equifax Small Business Credit Risk Score, which ranges from 0 to 300. Equifax pulls from a combination of payment data, public records, business demographics, and financial information to generate its score.

Equifax’s business credit products are used heavily by banks, insurance companies, and larger commercial lenders. A low Equifax business score can affect not just loan approvals but also the rates you pay on commercial insurance policies and the credit terms vendors are willing to extend.

How Business Credit Differs from Personal Credit

The differences between business and personal credit go beyond just different bureaus and scoring ranges. The fundamental rules and protections are different in ways that matter significantly for small business owners.

No Free Access to Your Own Score

Under the Fair Credit Reporting Act, every American has the legal right to access their personal credit reports for free once per year from each of the three major bureaus. There is no equivalent right for business credit. To see your business credit reports from Dun and Bradstreet, Experian Business, or Equifax Small Business, you typically have to pay or subscribe to a monitoring service.

This asymmetry means that most small business owners are flying blind. They have never seen their business credit report and do not know what it says. Lenders and vendors, however, can pull those reports at any time without notifying the business owner.

Creditors Are Not Required to Report

With personal credit, major lenders like banks and credit card companies are strongly incentivized to report payment activity to the bureaus because they also rely on bureau data to make lending decisions. With business credit, there is no requirement that creditors report at all. Many vendors, suppliers, and even some business lenders do not report payment activity to business credit bureaus.

This means building a business credit profile requires deliberate effort. You cannot simply open a business credit card and assume the activity is being reported. You need to verify that each creditor actually reports to at least one of the major bureaus.

No FCRA Protections

The Fair Credit Reporting Act provides extensive consumer protections around personal credit: the right to dispute inaccurate information, requirements for how long negative information can remain on a report, and restrictions on who can access your credit file. Business credit has no equivalent federal framework. Errors on a business credit report can be difficult to dispute, and negative information can remain on the report for longer than it would on a personal credit file.

According to Federal Trade Commission guidance for small businesses, business owners should regularly review their commercial credit profiles for errors, particularly before applying for significant financing.

What Factors Affect Your Business Credit Score

While each bureau uses its own proprietary model, several factors consistently influence business credit scores across all three bureaus:

• Payment history: The most heavily weighted factor. Paying on time, or better yet early, is the fastest path to a strong score.
• Credit utilization: How much of your available business credit you are using. High utilization signals financial stress.
• Company age: Older businesses are generally seen as less risky. A new business starts with no score and builds from zero.
• Industry risk: Some industries are considered higher risk by default. A restaurant has a different risk profile than an accounting firm, regardless of the individual business’s history.
• Public records: Bankruptcies, tax liens, judgments, and collections weigh heavily against a business credit profile and can take years to recover from.
• Number of credit accounts and their age: Having multiple seasoned accounts with good payment history signals a mature, creditworthy business.

Why Business Credit Matters

A strong business credit profile affects your business in several concrete ways that go beyond just loan approvals:

Lending: Banks and SBA lenders pull business credit reports as part of the underwriting process. A strong business credit score can mean better interest rates and higher loan amounts. Our breakdown of the SBA 7(a) loan program covers how credit factors into the approval process in detail.

Vendor terms: Suppliers and wholesale vendors check business credit before extending net-30 or net-60 payment terms. Without a credit profile, you often have to pay cash upfront, which strains cash flow.

Insurance rates: Commercial insurance underwriters sometimes use business credit data when pricing policies. A poor business credit profile can translate to higher premiums.

Leasing: Commercial landlords and equipment leasing companies use business credit scores to evaluate tenants and lessees. A thin or negative business credit profile can limit your options or require larger security deposits.

The bottom line is that building business credit is not optional if you want to run a professional, scalable operation. It takes time and deliberate action, but the foundation starts with understanding what the score is, where it comes from, and how it differs from the personal credit file you may already be managing carefully. For a step-by-step action plan, see our guide on qualifying for a business line of credit.