If you’re starting a business or dealing with tax-related matters, you may have come across the term UBI number. But what exactly is it, and why is it important? In this blog post, we’ll explain:
What is a UBI Number?
A Unified Business Identifier is a unique 9-digit code assigned to businesses registered in Washington State. It serves as a general business license number and is used for tax and regulatory purposes.
Other Names-
- Washington State Business License Number
- Master Business License Number
- State Tax ID (for Washington businesses)
Is a UBI Number the Same as an EIN?
No. While both are tax-related IDs, they serve different purposes:
| UBI Number | EIN (Employer Identification Number) |
|---|---|
| Used in Washington State only | Issued by the IRS (federal) |
| Required for state taxes & licensing | Needed for federal taxes, hiring employees, banking |
| 9 digits (e.g., 602-123-456) | 9 digits (e.g., 12-3456789) |
If your business is in Washington, you may need both a UBI and an EIN.
Where to Find Your ?
You can be found on:
- Washington State Business License
- State tax notices
- Department of Revenue (DOR) correspondence
- Online lookup via Washington State Business Licensing Service
Who Needs ?
You must register, if your business:
Operates in Washington State
Pays state taxes
Hires employees
Requires special permits (e.g., food service, construction)
How to Get ?
- Register online at the Washington State Business Licensing Service.
- Apply in person at a Washington Secretary of State office.
- Mail a Business License Application to the Department of Revenue.
Processing time: Usually 2-3 weeks (faster online).
Why Is Important?
- Required for legal business operations in Washington
- Needed to file state taxes
- Used to apply for permits & licenses
- Helps avoid penalties for non-compliance
FAQs About UBI Numbers
Can I use my UBI number instead of an EIN?
No, the UBI is for state purposes, while the EIN is for federal taxes.
Do sole proprietors need a UBI number?
Yes, if they operate a business in Washington.
Is a UBI number the same as an LLC number?
No, but your LLC will receive a UBI when registered in Washington.
Final Thoughts
A UBI number is essential for Washington-based businesses to stay compliant with state laws. If you’re starting a business in WA, make sure to register for one!
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