Question 1

How do I apply for an EIN in 2026, and is it free?

Accepted Answer

You can apply for an EIN online at IRS.gov/EIN at no cost. According to IRS Publication 1635, your EIN is issued immediately once your application information is validated. The IRS warns taxpayers to beware of third-party websites that charge for this free service. You may also apply by fax or mail using Form SS-4, or by phone at 267-941-1099 if your principal business is located outside the United States or U.S. territories.

Question 2

Who is required to get an EIN?

Accepted Answer

According to IRS Publication 334, you must obtain an EIN if you pay wages to one or more employees or if you file pension or excise tax returns. Additionally, corporations, partnerships, trusts, estates, employee plans, exempt organizations, and certain LLCs generally require their own EIN, as outlined in IRS Publication 1635. Sole proprietors without employees who do not file pension or excise tax returns are not required to have an EIN but may choose to obtain one.

Question 3

Can I use my EIN instead of my Social Security Number?

Accepted Answer

No. IRS Publication 1635 specifically cautions that an EIN is for use in connection with your business activities only and should never be used in place of your SSN. Similarly, your SSN should not substitute for an EIN on business tax filings. Mixing these numbers can cause mismatched IRS records, processing delays, and potential notices or penalties.

Question 4

How many EINs can I receive per day, and is there a limit?

Accepted Answer

Effective May 21, 2012, the IRS limits EIN issuance to one per responsible party per day, as stated in IRS Publication 1635. This limitation applies regardless of whether you apply online, by fax, or by mail. If you need EINs for multiple entities, you will need to apply on separate days for each.

Question 5

What should I do if my tax return is due but I haven't received my EIN yet?

Accepted Answer

According to IRS Publication 1635, if you do not have your EIN by the time your return is due, you should write "Applied For" and the date you applied in the space shown for the number on your return. This allows you to file on time while the IRS processes your application. Do not delay filing simply because you are waiting for your EIN.

EIN (Tax ID) Numbers

Guides

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Common questions