If you’re an Indian business owner and you’ve come across both “DUNS number” and “GST number” in the same conversation maybe while applying for a global platform, or setting up an international supplier relationship it’s a fair question to ask whether they’re related, or even the same thing. They’re not. A DUNS number and a GST number serve completely different purposes: GST identifies your business for Indian tax purposes, while a DUNS number identifies your business globally for verification and credibility purposes through Dun & Bradstreet.
We cover this comparison in more depth in our guide, DUNS Number vs GST Number: Key Differences this post focuses specifically on what this means for Indian businesses in practice.
What GST Number Actually Does
Your GST (Goods and Services Tax) number is issued by the Indian tax authorities and identifies your business for tax collection and compliance purposes within India. It’s mandatory for most businesses above a certain turnover threshold, and it’s tied specifically to how your business operates under Indian tax law filing returns, collecting tax on sales, and claiming input tax credits.
What a DUNS Number Actually Does
A DUNS number is issued by Dun & Bradstreet, a private business data company, and it has nothing to do with Indian tax compliance. It exists to help platforms, suppliers, and government systems around the world verify that your business is real and legitimate, and it’s often used as a business credit reference point internationally. It’s not mandatory for operating a business in India you typically only need one because something specific requires it, like Apple Developer, Google Play, or an international supplier relationship.
Side-by-Side Comparison
| DUNS Number | GST Number | |
| Issued by | Dun & Bradstreet (private company) | Indian Government (GSTN) |
| Purpose | Business identity and credit verification | Tax collection and compliance |
| Mandatory in India? | No — only needed for specific requirements | Yes, above the applicable turnover threshold |
| Geographic scope | Global | India only |
| Cost | Free (standard registration) | Free to register, but comes with tax filing obligations |
| Used for | Platform verification, supplier trust, government contracts | Tax returns, invoicing, input credit claims |
Why This Comparison Comes Up So Often
A lot of Indian business owners first encounter the term “DUNS number” while filling out an international application an Apple Developer account, a Google Play organization setup, or an overseas supplier’s onboarding form right around the same time they’re already juggling GST compliance. Since both are nine-character-ish identifiers tied to your business, and both get requested on official-looking forms, it’s natural to wonder if they’re somehow connected. They aren’t, and neither system is aware of the other.
Does Having a GST Number Help You Get a DUNS Number Faster?
Yes, indirectly. When you apply for a DUNS number, D&B verifies your business against available public records, and your GST registration is one of the data points that can help confirm your business details automatically. Businesses with clean, consistent GST registration where the business name and address match exactly what you enter on your DUNS application tend to get verified faster, since D&B’s system has more to cross-reference.
Can You Use Your GST Number Instead of a DUNS Number on a Form?
No. If a form or platform specifically asks for a DUNS number, your GST number won’t satisfy that field, since they’re entirely different identifiers issued by different organizations for different purposes. Similarly, a DUNS number can’t be used in place of your GST number for any tax filing or compliance purpose within India. They’re not interchangeable in either direction.
Do You Need Both?
It depends on what you’re doing. If you’re running a standard Indian business without any international platform, supplier, or government contract requirement, your GST number (where applicable) is all you need there’s no reason to get a DUNS number just because it exists. If you’re applying for something that specifically requires a DUNS number a global developer platform, an international B2B relationship, or a government contract you’ll need both: your GST number for your existing tax compliance, and a DUNS number for that specific new requirement.
How to Apply for a DUNS Number as an Indian Business
- Check if your business already has one using D&B’s official free lookup tool many Indian businesses already have a DUNS number without realizing it.
- Apply directly through D&B’s official website, which is free and typically takes up to 30 business days for standard processing.
- Use your exact legal business name and registered address, matching your GST registration and other official documents precisely, since consistency speeds up verification.
- Provide your GST number or PAN where the application asks for a tax identifier Indian applicants don’t need a US EIN, since that’s a separate, unrelated identifier.
If You’re on a Deadline
If you need your DUNS number quickly for a platform application or business deadline, DUNS Assist can help we can get you a DUNS number in as little as 24 hours, and guide you through the entire process so nothing about your application causes unnecessary delays.
Is a DUNS number the same as a GST number?
No. A DUNS number is issued by Dun & Bradstreet for global business verification. A GST number is issued by the Indian government for tax compliance. They’re unrelated systems.
Do I need a DUNS number to run a business in India?
No — GST registration (where applicable) covers your tax compliance needs. A DUNS number is only needed if a specific platform, supplier, or government contract requires it.
Can I use my GST number instead of a DUNS number on an international application?
No — if a form specifically asks for a DUNS number, your GST number won’t be accepted in that field, since they’re different identifiers entirely.
Does having GST registration help my DUNS application get approved faster?
Yes, indirectly — consistent GST records give D&B more public data to automatically verify your business against, which can speed up approval.
Do I need both a DUNS number and a GST number?
Only if you’re doing something that specifically requires a DUNS number, like an international platform or supplier relationship, in addition to your existing GST compliance obligations.