The Unified Business Identifier (UBI) is a 9-digit number issued to individuals and companies doing business in Washington State. You need this number to apply for licenses, contracts, hire employees, or collect taxes. It registers you with several state agencies. The UBI is also called a tax registration, business registration, or business license number.
How to Obtain a UBI Number
To get a UBI number, file a Business License Application. This simplified form registers your business with state and city agencies. It is used to open or change ownership of a business, open a new location, register a trade name, hire employees, and more.
UBI vs. EIN
The UBI identifies business entities and employers. It is different than the federal Employer Identification Number (EIN) which also identifies businesses with or without employees to the IRS.
A UBI directs resources inefficiently. It is not the best tool to redistribute income. Programs helping low income groups and disabled people target funds more effectively.
Lookup and Differences
You can look up a Washington UBI number online through the state website. If you filed online, the UBI will be on your confirmation email.
An EIN is issued by the IRS for federal tax purposes. A UBI is unique to Washington businesses for state agencies. If a business changes structure, it needs a new UBI number. The UBI stays the same as long as the structure is retained.