news | January 19, 2026

Do tax EIN numbers expire?

No, EINs — Employer Identification Numbers — don’t expire. However, certain situations may cause you to have to obtain a new one.

How long is a tax ID number good for?

Your tax ID number is a unique 9-digit code the IRS uses to track your company. This code is permanent. After assigned, The IRS does not require Tax ID renewal except in special circumstances. You must file income taxes for your company every year using the assigned EIN.

How long are tax ID numbers good for?

Your ITIN may expire before you file a tax return in 2021. All ITINs not used on a federal tax return at least once in the last three years will expire on December 31, 2020. Additionally, all ITINs issued before 2013 with middle digits of 88 (Example: (9XX-88-XXXX) will expire at the end of the year.

What do you call a federal tax ID number?

An employer identification number — also called an EIN or federal tax ID number — is a unique numerical identifier that is assigned to businesses by the IRS principally for tax purposes. Your company’s EIN is like a Social Security number for your business and thus very important.

How to apply for a business tax ID?

Here are the ways you can apply for an EIN: Apply for EIN Online: Naturally, this is the preferred and most common way to apply for a federal tax ID these days. You can apply for an EIN right at the IRS website on their EIN online application. Apply for EIN by Fax: Businesses can fax in their application to the appropriate IRS fax number.

What happens to old Employer Identification Number ( EIN )?

You may be wondering what happens to old Employer Identification Numbers which were assigned to businesses which are no longer operational. In reality, EINs are never discarded. When you apply for an EIN, it becomes a part of the IRS’ permanent records and it will never be removed, even if the business ceases to exist.

Where can I find my employer tax ID number?

If you have past tax records, this is the easiest way to find your employer’s identification number. If you cannot find your physical copy of your W-2, check your tax filing software such as TurboTax or any online payroll records you may have through companies such as ADP.