How do I apply for an EIN?

How to Apply for an EIN in Washington

An Employer Identification Number (EIN) is essential for business operations such as hiring employees, opening bank accounts, and filing taxes. In Washington, obtaining an EIN is a straightforward process that supports compliance and smooth business registration.

Steps to Apply for an EIN

• Determine Eligibility: Your business must be located in the United States or its territories to apply for an EIN.
• Gather Required Information: Prepare your legal business name, address, Social Security Number (SSN) or Individual Taxpayer Identification Number (ITIN) of the principal officer, and the type of business entity.
• Apply Online: The fastest method is using the IRS EIN Online Assistant available on the IRS website. This service is available Monday through Friday, 7 a.m. to 10 p.m. Eastern Time.
• Apply by Mail or Fax: Complete IRS Form SS-4 and mail or fax it to the IRS. Processing times vary, so plan accordingly for business registration or payroll setup.
• Receive EIN Immediately: When applying online, you receive your EIN instantly, which allows you to proceed with Washington-specific business registrations such as the Department of Revenue and Labor & Industries.

Operational Considerations

• Business Registration: Use your EIN when registering your business with the Washington State Department of Revenue for tax purposes.
• Payroll Setup: An EIN is required to set up payroll accounts and manage employee tax withholdings.
• Recordkeeping: Keep your EIN documentation accessible for tax filings and compliance audits.
• Compliance: Ensure your EIN is used consistently across all federal and state filings to avoid processing delays.

As of 2026, the process and requirements for obtaining an EIN remain consistent, but always verify details on the official IRS website or with Washington state agencies to ensure compliance.