There is no such thing as EIN renewal. Once the IRS assigns an Employer Identification Number to your business, that number is permanent: no expiration date, no annual filing to keep it active, no renewal fee. You use it for as long as the entity exists, and the IRS never recycles it to anyone else afterward.1Taxpayer Advocate Service. Tax Tip: Employer Identification Number
Why an EIN Is Permanent
The IRS treats your EIN the way the Social Security Administration treats a Social Security number. It’s tied to the entity for life. Whether your business has been operating for six months or thirty years, the number stays valid without any action from you.
Even closing the business doesn’t erase the number. The IRS keeps it on file and will never assign it to another entity. If you start a brand-new business later, you’ll receive a brand-new EIN rather than reactivating the old one. Old tax records, audit trails, and financial documents remain tied to the original number indefinitely.
So if you’re worried about a deadline, a lapsed number, or a fee notice tied to “renewing” your EIN, none of those exist under IRS rules. Any website or letter suggesting otherwise is not coming from the IRS.
When You Actually Need a New EIN
Your EIN doesn’t expire, but some changes to your business create what the IRS considers a new entity. A new entity needs its own number. The triggers depend on how your business is organized.2Internal Revenue Service. When to Get a New EIN
Sole Proprietors
A sole proprietor needs a new EIN after incorporating, taking on partners and converting to a partnership, buying or inheriting a business to run as a sole proprietorship, or going through a bankruptcy proceeding. Each of these creates a different taxpayer in the eyes of the IRS, even when the day-to-day work looks the same.3Internal Revenue Service. Publication 5845 – Do You Need a New Employer Identification Number
Corporations
Corporations need a new EIN when they receive a new charter from the secretary of state, convert to a partnership or sole proprietorship, or merge with another corporation to form an entirely new entity. A subsidiary also needs its own number, separate from the parent.
Several common changes do not require a new number. Declaring bankruptcy, electing S corporation status, reorganizing to change only identity or location, and surviving a merger where the other corporation is absorbed all leave the existing EIN in place. The surviving corporation in a merger keeps its number.2Internal Revenue Service. When to Get a New EIN
LLCs
LLC rules take a little more attention because the tax classification can vary. You need a new EIN if you terminate an existing LLC and form a new corporation or partnership in its place. A single-member LLC that had been using the owner’s Social Security number also needs its own EIN once it has to file employment or excise tax returns.
You do not need a new EIN when converting a partnership to an LLC that’s still taxed as a partnership, or when changing your tax election to be taxed as a corporation or S corporation. A single-member LLC using the owner’s EIN, with no corporate tax election and no employees, can keep using that same number.2Internal Revenue Service. When to Get a New EIN
Partnerships
A partnership needs a new EIN if one partner takes over the whole operation as a sole proprietorship, if the partnership incorporates, or if the existing partnership ends and a new one is formed in its place.3Internal Revenue Service. Publication 5845 – Do You Need a New Employer Identification Number
Changes That Keep the Same EIN
Many changes that feel significant to a business owner have no effect on the EIN. You keep your existing number when you:
- Change your business name
- Move to a new address or open additional locations
- Elect S corporation status
- Reorganize at the state level to change only your identity or place of organization, without changing your business structure
None of these require a new application. They do, however, require you to tell the IRS about the change so the records stay current.2Internal Revenue Service. When to Get a New EIN
Reporting a Name Change
How you report a name change depends on the entity. Corporations check the name change box on Form 1120 (Page 1, Line E, Box 3), and partnerships check the box on Form 1065 (Page 1, Line G, Box 3) when filing the current-year return. Sole proprietors write to the IRS at the address where they file their return. If you’ve already filed for the year, any entity type can send a letter to update the name.4Internal Revenue Service. Business Name Change
Reporting an Address or Responsible Party Change
Every EIN has a “responsible party” on file: the individual who controls or directs the entity’s funds and assets. When that person changes, or when the business moves, file Form 8822-B (Change of Address or Responsible Party – Business) within 60 days.5Internal Revenue Service. About Form 8822-B, Change of Address or Responsible Party – Business This filing is easy to overlook. If the IRS sends notices to an outdated address or tries to reach a responsible party who no longer runs the business, you can miss audit letters, balance-due notices, and other correspondence you need to see.
Finding a Lost EIN
People often start searching for information about EIN renewal because they can’t find the number and assume it must have lapsed. It didn’t. Before doing anything else, check your original EIN assignment notice (CP 575), prior-year tax returns, bank account opening paperwork, or state licensing documents. The number is usually sitting in files you already have.
If you still can’t find it, you can request an Entity transcript through the IRS website, which includes your EIN and other basic account information.6Internal Revenue Service. About the Employer Identification Number You can also call the IRS Business and Specialty Tax Line at (800) 829-4933, open Monday through Friday from 7:00 a.m. to 7:00 p.m. local time. The IRS will look up your number and send Letter 147C confirming the EIN previously assigned to your business.7Taxpayer Advocate Service. Getting an EIN
A Note on Third-Party “Renewal” Offers
Because the IRS charges nothing to issue an EIN and nothing to maintain one, any service asking you to pay a fee to renew, reactivate, or verify your EIN is not the IRS. The Federal Trade Commission has warned about operators of websites that charge for EIN services while using designs and logos meant to look like the IRS.8Federal Trade Commission. FTC Warns Operators of Websites that Charge for an Employer Identification Number and Claim Affiliation with the IRS The only official place to apply for or verify an EIN is irs.gov.9Internal Revenue Service. Get an Employer Identification Number If your business already has an EIN and none of the structural triggers above apply to you, there is nothing to file, pay, or renew.