How to Get a D-U-N-S Number (and Why Your Business Credit Needs One)
Before you can have a PAYDEX score, Dun & Bradstreet needs a way to identify your business. That identifier is your D-U-N-S number. Here is how to get it.
Company Base OS Research
Updated July 7, 2026 · 7 min read
Key takeaways
- 1.A D-U-N-S number is a unique nine-digit ID that Dun & Bradstreet uses to track your business credit file.
- 2.You generally need one before you can build a PAYDEX score.
- 3.It is free to request directly from Dun & Bradstreet, though timelines vary.
If you are serious about building business credit, one of the first foundation steps is getting a D-U-N-S number. It is the identifier Dun & Bradstreet uses to open and track your business file. Without it, one of the three major bureaus has no clean way to attach your tradelines to your business, which is why this sits early in the complete guide to building business credit.
What a D-U-N-S number is
D-U-N-S stands for Data Universal Numbering System. It is a unique nine-digit number assigned by Dun & Bradstreet to identify a single business location. Lenders, suppliers, and some government programs use it to look up your business and its credit history. It is not a score. It is the key that unlocks your Dun & Bradstreet file, where your PAYDEX score lives once you have reporting tradelines.
How to get one
- Confirm your foundation is set: registered entity, EIN, business bank account, and consistent name, address, and phone.
- Request your D-U-N-S number directly from Dun & Bradstreet. It is free to request.
- Provide your legal business details exactly as they appear on your state filing and bank account.
- Wait for it to be issued. Timelines vary, so request it early rather than when you are mid-application.
- Once issued, keep your D&B profile details accurate, since mismatches cause silent denials.
Consistency is everything
Your business name, address, and phone on your D-U-N-S record must match your state filing, bank, and every application. A mismatch is one of the most common reasons approvable files get denied.
A D-U-N-S number alone does not build credit. It is the container. You fill it by opening reporting net-30 vendor accounts and paying early, which is how your PAYDEX climbs. To see how the bureaus differ, read the business credit bureaus comparison.
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Get my free Fundability ScoreFrequently asked questions
Is a D-U-N-S number free?
Yes, you can request a D-U-N-S number directly from Dun & Bradstreet at no cost. Paid expedited options may exist, but the standard request is free.
How long does it take to get a D-U-N-S number?
Timelines vary. Because it can take time, request it early in your foundation phase rather than waiting until you need it for an application.
Do I need a D-U-N-S number for business credit?
It is effectively required to build a Dun & Bradstreet file and PAYDEX score, which is one of the most widely checked business credit references.
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