The SS-4 form requires detailed information about the business, including the legal name, business type, and reason for applying. You can apply for an EIN directly through the IRS website or by ...

Mail applications take the longest. The IRS says businesses should expect to receive an EIN four to five weeks after ...

You can either apply by fax, mail or online. If you apply by fax or mail, you must fill out and submit the IRS Form SS-4. If you need your EIN number fast, you can apply online.

When you hire employees, you must get an employer identification number (EIN) to use on tax returns and other documents you submit to the IRS. To get an EIN, you must file IRS Form SS-4.