Guide

Federal Tax ID Number Guide

A Federal Tax ID is the same as an EIN. Both refer to the 9-digit IRS tax identification number for businesses. Apply free at irs.gov or through ein.so for $49.

A Federal Tax ID and an EIN are the same 9-digit number from the IRS. When people say Federal Tax ID for a business, they mean the Employer Identification Number (EIN). Format: XX-XXXXXXX. Apply free at irs.gov (SSN required) or through ein.so for $49 (non-residents).

Same Number

Federal Tax ID = EIN

| Term | Same Number? | |------|-------------| | EIN | Yes | | Federal Tax ID | Yes | | FEIN | Yes | | Business Tax ID | Yes |

See EIN vs Federal Tax ID and FEIN vs EIN for full explanations.

How to Get

How to Get a Federal Tax ID

| Method | Speed | Cost | |--------|-------|------| | Online | Instant | Free | | Fax | 4-7 days | Free/$49 | | Phone | Same day | Free | | Mail | 4-6 weeks | Free |

See how to get an EIN for complete details.

Non-Residents

For Non-Residents

Non-residents apply by fax or through ein.so ($49). No SSN required.

Related: What is an EIN | Free EIN | EIN cost

Apply for your EIN — $49

Frequently Asked Questions

Is a Federal Tax ID the same as an EIN?

Yes. Federal Tax ID and EIN are the same 9-digit number from the IRS. Completely interchangeable.

How do I get a Federal Tax ID?

Apply for an EIN: online (instant, SSN needed), fax (4-7 days), phone (same day), or mail (4-6 weeks). All free from IRS.

Is a Federal Tax ID free?

Yes. The IRS charges $0. ein.so charges $49 for non-resident filing assistance.

Do I need a Federal Tax ID?

If you operate a US business, yes. All LLCs, corporations, and partnerships need an EIN (Federal Tax ID).

What format is a Federal Tax ID?

XX-XXXXXXX (9 digits with hyphen after the second digit). Example: 12-3456789.

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Non-US resident? We file Form SS-4 with the IRS and deliver your EIN by email. Just $49.

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