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state seal 70.60
Unified Business Identifier (UBI)


May 1, 1999

The purpose of the UBI

The purpose of the UBI is to provide a uniform means of identifying and servicing business entities and employers which are required to be registered with, licensed by, or regulated by any agency of the state of Washington. The UBI serves three purposes:

  1. Simplifies business registration and record-keeping. Each business needs only one number to identify itself to any state agency.
  2. Enables consolidation of periodic business reporting. In situations where a business is required to file reports with several agencies, these reports may be consolidated.
  3. Enables consolidation and information sharing of state services. Agency records of a non-confidential nature relating to any individual business entity may be easily accessed.


May 1, 1999

The UBI and how it is used

The Unified Business Identifier (UBI) is standard nine digit sequential number used by all state agencies to uniquely identify a business entity. The UBI is intended to identify public and private business entities and employers.

Business Entity - Except for the exclusions noted below, a "business entity" or "business" is defined as any sole proprietor, partnership, corporation, or political subdivision of the state of Washington. It includes any individual, receiver, administrator, executor, assignee, trustee in bankruptcy, trust, estate, firm, joint venture, club, company, joint stock company, business trust, state or local agency, association, society, or any group of individuals acting as a unit, whether mutual, cooperative, fraternal, nonprofit, or otherwise which is required to be registered with, or licensed by, any agency of the state of Washington and for which agency registration records are established or maintained.

Exclusions - Agencies need not establish UBIs for certain individuals as follows:

  • Students;
  • Private individuals receiving grants or subsidies;
  • Employees, or past employees; and,
  • Professional licensees, who are not employers or subject to state business taxes.


May 1, 1999

Certain agency systems must include the UBI

Any agency information system designed to process data relating to business entities, as defined in Subsection 70.60.20, shall carry the UBI as part of the agency's record for each business entity.


May 1, 1999

Assigning the UBI

A UBI is assigned to a business when it first registers with the Secretary of State's office, or Departments of Revenue, Labor and Industries, or Employment Security, or when it obtains a business registration or license issued through the Department of Licensing Business License Center. If an agency finds that a business does not have an assigned UBI, the agency should refer the business to offices of one of these agencies. For established businesses currently registered with the Department of Revenue, the tax registration number assigned by the Department of Revenue is the UBI.


May 1, 1999


The provisions of this section are applicable to and binding to all agencies that regulate, register, or license business entities in the state of Washington.

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