SS-4 Form

New businesses use Form SS-4 to apply for an EIN — the federal tax ID needed to open a business bank account, hire employees and file business returns. Most applicants can also get an EIN online instantly.

How to Use This Form

Download the official PDF below, or visit the official IRS page for instructions, prior revisions and e-filing options. This is the official U.S. government form, provided here for convenience — always confirm you have the current revision before filing.