How do I apply for an EIN?

How to Apply for an EIN in Massachusetts

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

Steps to Apply for an EIN

• Determine Eligibility: Ensure your business is located in the United States or U.S. territories and you have a valid Taxpayer Identification Number (such as a Social Security Number).
• Gather Required Information: Prepare details such as your business legal name, address, type of entity, and the name and Social Security Number of the principal officer or owner.
• Apply Online: The fastest and most efficient method is to apply directly on the IRS website using their EIN Online Assistant. This service is available Monday through Friday during standard business hours.
• Alternative Application Methods: You can also apply by mailing or faxing Form SS-4 to the IRS. Processing times vary, so online application is recommended for quicker receipt.

Operational Considerations After Receiving Your EIN

• Business Registration: Use your EIN when registering your business with the Massachusetts Department of Revenue and other state agencies.
• Payroll Setup: An EIN is required to set up payroll systems and comply with Massachusetts payroll tax withholding and unemployment insurance requirements.
• Bank Accounts and Licensing: Many banks and licensing authorities in Massachusetts require an EIN to open accounts or issue permits.
• Recordkeeping: Maintain your EIN documentation securely for tax reporting and compliance audits.

As of 2026, applying for an EIN remains a free service provided by the IRS. Avoid third-party services that charge fees for this process.