How to Get an EIN in Arizona

An EIN trips up a lot of new owners because sites try to charge for it. You never have to pay. Here is what it is, when you need one, and how to get it straight from the source.

What is an EIN?

An EIN, or Employer Identification Number, is a nine-digit tax ID the IRS assigns to your business. It works like a Social Security number for your company.

Banks, the IRS, and payroll systems use it to identify your business. Once issued, it stays with the company.

Do you need an EIN?

Most Arizona LLCs and corporations do. You need an EIN to open a business bank account, hire employees, and file federal taxes. Many single-member LLCs get one anyway.

If you have an Arizona LLC or plan to incorporate, plan on getting an EIN as part of the setup.

How to apply for an EIN

Apply free on the IRS website. The online application takes a few minutes and gives you the number right away. You can also file Form SS-4 by mail or fax.

1. Form your business first, so the name and structure match. Start with your Arizona LLC or corporation.
2. Apply for an EIN on the IRS website. The online tool is the fastest route.
3. Answer the questions about your entity type and the responsible party.
4. Get your EIN on the spot and save the confirmation letter, called the CP 575.

Does the state of Arizona issue the EIN?

No. The EIN is federal, from the IRS, not the Arizona Corporation Commission. Arizona has no separate state EIN, though you may still register for state taxes.

If you sell goods or have employees, you may need to register with the Arizona Department of Revenue for a transaction privilege or withholding license. That is separate from your federal EIN.