When a lender or vendor checks your business with Dun & Bradstreet, the first thing they look up is your D-U-N-S Number. If your business doesn't have one, or has one with the wrong name or address, there's no clean D&B file for them to review.

Getting the number is simple and free. What trips businesses up is everything around it: mismatched records, duplicate files, and the belief that a number alone builds credit. Here's how to get it right the first time.

What a D-U-N-S Number is, and what it isn't

A D-U-N-S Number is a unique nine-digit identifier that Dun & Bradstreet assigns to a business location. D&B uses it to organize everything it knows about your company, including the payment experiences vendors report.

It is not a credit score, and it doesn't build credit by itself. It's the account number for your D&B business credit file. The file only becomes useful once vendors start reporting your payments to it.

Do you need one?

You'll want one if you plan to:

• Open vendor or supplier accounts that check or report to Dun & Bradstreet

• Apply for business financing where the lender reviews your D&B file

• Work with large customers or platforms that verify suppliers through D&B

• Build a business credit profile that stands apart from your personal credit

One common myth to clear up: you no longer need a D-U-N-S Number for federal government contracts or grants. On April 4, 2022, the federal government replaced it with the Unique Entity ID (UEI), which you get for free through SAM.gov. Some state and local agencies may still ask for a D-U-N-S Number, so check each program's requirements.

Step 1: Check whether you already have one

Before applying, search Dun & Bradstreet's lookup tool for your business name and address. D&B sometimes creates a file when a vendor or customer reports on your business. Applying again can create a duplicate file, which splits your payment history across two records.

If you find an existing file, claim it and correct anything outdated, such as an old address or a former business name.

Step 2: Line up your business information first

This is the step most owners skip. Lenders and bureaus match records across sources, so make sure these all agree, down to the abbreviations and suite numbers:

If your bank says "Smith Consulting LLC," your state filing says "Smith Consulting, L.L.C." and your website says "Smith Consulting Group," fix that before you apply.

Step 3: Apply with Dun & Bradstreet

Apply directly on Dun & Bradstreet's website. Dun & Bradstreet states there is no cost to request and receive a D-U-N-S Number. Have this ready:

• Legal business name, and the address of the location (each location gets its own number)

• Business phone number

• Name of the owner, president or CEO

• Legal structure and the year the business started

• Primary industry and total number of employees

Step 4: Choose your timeline

If nothing is waiting on the number, the free option works fine. Pay for speed only when a contract, vendor or lender deadline depends on it.

You don't have to buy any credit-building product to get or keep a D-U-N-S Number. If a sales call suggests otherwise, the number itself is still free.

What comes next: turning a number into a credit profile

Once you have your number, the real work starts. Dun & Bradstreet's best-known score, the PAYDEX® score, is built from payment experiences that vendors report. It runs from 1 to 100, and higher scores reflect a record of paying on time or early. A score generally won't appear until several payment experiences from more than one vendor are on file, which often takes a few months.

A practical sequence after you get your number:

1. Open a small number of vendor accounts that confirm in writing they report to Dun & Bradstreet.

2. Make modest purchases you'd make anyway, and pay before the due date.

3. Check your D&B file after the first reports to make sure payments are landing on the right record.

4. Build files at Experian Business and Equifax Business as well. Many lenders check more than one bureau.

Mistakes that stall a new D&B file

• Applying twice and creating duplicate files

• Using a different name or address than your state filing and bank

• Assuming the number builds credit without any vendors reporting

• Never checking the file after it's created, so errors sit there for months

How CredFin helps

Getting a D-U-N-S Number is step one of the work a business funding department does. Inside CredFin's ApprovalReady™ program, the Capital Qualified Foundation™ review checks that your business information is consistent before you apply anywhere. Bureau Insights™ then gives you one view of your profile across Dun & Bradstreet, Equifax Business and Experian Business, so you can see what lenders see. Learn more about the Capital Qualified™ program.

Frequently asked questions

How much does a D-U-N-S Number cost?
Nothing. Dun & Bradstreet offers it free. An optional expedited service has a fee.

How long does it take?
Dun & Bradstreet says standard processing can take up to 30 business days. Expedited service delivers within eight business days of a successful submission.

Is a D-U-N-S Number the same as an EIN?
No. The IRS issues your EIN for tax purposes. Dun & Bradstreet issues the D-U-N-S Number for its business credit file. Most businesses building credit need both.

Do I need a D-U-N-S Number for SAM.gov?
No. Since April 4, 2022, federal registration uses the Unique Entity ID issued in SAM.gov.

Want to see what lenders see?

If you're building business credit and want a clear picture of where you stand across all three business bureaus, see your potential financing options or book a free 30-minute Funding Strategy Session. There's no cost and no obligation.

CredFin, Inc. is a business credit coaching and funding advisory company, not a lender. CredFin is not affiliated with Dun & Bradstreet. Financing decisions are made by independent third-party providers, and funding is not guaranteed. This article is general education, not legal, tax or financial advice.