Is My EIN Still Active? How to Verify and Reopen

To find out if your EIN is still active, call the IRS Business and Specialty Tax Line at 800-829-4933 and request a Letter 147C, or sign in to your IRS Business Tax Account online and pull an entity transcript. The nine-digit number itself never expires once the IRS assigns it, but the business account tied to that number can be closed, and that is usually what people are really asking about when they wonder whether their EIN is still good.1Internal Revenue Service. Telephone Assistance Contacts for Business Customers

Active EIN Versus Active Account

An EIN is permanent. Under 26 CFR 301.6109-1, once the IRS issues those digits to an entity, they stay with that entity for life. The number is never recycled, reassigned, or transferred, even if the business dissolves, never files a return, or changes its tax classification.2eCFR. 26 CFR 301.6109-1 – Identifying Numbers

What can change is the status of the business account behind the number. The IRS closes a business account when the entity stops operating, when it has no further filing obligations, or when an authorized person sends in a written closure request. A closed account means the IRS no longer expects returns under that EIN. The EIN still exists in IRS records, but filings you submit against a deactivated account can be rejected, banks may balk at opening or maintaining accounts, and information returns filed under a mismatched EIN can trigger penalties. So the practical question is not whether the number exists. It is whether the account is open.

Ways to Confirm the Account Is Active

Request a 147C Letter

The most authoritative confirmation is Letter 147C, an IRS letter that restates the EIN previously assigned to your entity. Call the Business and Specialty Tax Line at 800-829-4933, Monday through Friday, 7:00 a.m. to 7:00 p.m. local time (Alaska and Hawaii follow Pacific time).1Internal Revenue Service. Telephone Assistance Contacts for Business Customers After verifying you are authorized to make the request, the agent can fax the letter to you the same day or mail it. Banks and state agencies widely accept the 147C as proof that the EIN is valid and the account is on file.3Internal Revenue Service. Employer Identification Number

Pull an Entity Transcript

An entity transcript is the IRS record that shows your EIN, business structure, and filing requirements. You can request one three ways: through the IRS Business Tax Account online, by mailing Form 4506-T, or by calling the business tax line.4Internal Revenue Service. Get a Business Tax Transcript The transcript is especially useful because it shows whether the IRS still has an open filing requirement on the account, which is the clearest signal of active status.

Sign In to the Business Tax Account

The IRS Business Tax Account portal is open to sole proprietors, partnerships, S corporations, and C corporations. Once you’re in, you can see your business profile, balances, payment history, transcripts, and certain IRS notices.5Internal Revenue Service. Business Tax Account Sole proprietors need the EIN to register; partnerships and corporations access the account through a designated official. If you can sign in and view the profile, the IRS has your EIN on record, and the account view tells you whether any filing requirements or balances are outstanding.

Check a Recent Return

A quick informal check: pull up a previously filed Form 1120, Form 1065, or other business return. The EIN sits on the first page, and a successfully processed return confirms the number was active as of that filing. This won’t tell you whether the account is active today, but it’s useful for locating a misplaced EIN before you call.

Nonprofit Lookup

Tax-exempt organizations have an extra option. The IRS Tax Exempt Organization Search tool lets anyone look up a 501(c)(3) by EIN or name and searches several databases, including Pub 78 data, the auto-revocation list, determination letters, and filed Form 990-N e-Postcards.6Internal Revenue Service. Tax Exempt Organization Search If the organization shows up on the auto-revocation list, tax-exempt status has been revoked for failing to file for three consecutive years, even though the EIN itself remains on record.

What to Have Ready Before You Verify

The IRS will ask security questions before giving out any information over the phone or through an online account. Have these on hand:

  • The exact legal business name as it appears on the original EIN application. Small differences in punctuation or abbreviations can cause a mismatch.
  • The business address from the original filing.
  • The responsible party’s Social Security Number or ITIN.3Internal Revenue Service. Employer Identification Number
  • The original Form SS-4 or EIN confirmation notice, if you have either. Both are reliable references for the details above.

Only an authorized person can make the inquiry: the responsible party, a corporate officer, a partner, or someone with a valid power of attorney. If the responsible party has changed since the EIN was issued and you never updated the IRS, you may need to file Form 8822-B before verification will go through. Changes to the responsible party are supposed to be reported within 60 days.7Internal Revenue Service. About Form 8822-B, Change of Address or Responsible Party – Business

What a Bad EIN Match Actually Costs

If the account is closed or the number you’re using doesn’t match IRS records, the fallout goes beyond a rejected form.

Information Return Penalties

A business that files an information return like Form 1099 with a missing or incorrect taxpayer identification number faces per-return penalties that grow the longer the error sits. For returns due in 2026:8Internal Revenue Service. Information Return Penalties

  • Corrected within 30 days: $60 per return.
  • Corrected after 30 days but by August 1: $130 per return.
  • Corrected after August 1 or not filed at all: $340 per return.
  • Intentional disregard: $680 per return.

The IRS may waive or reduce these penalties if you can show reasonable cause and that you acted in good faith.

Backup Withholding

When a payer files a 1099 under your EIN and the IRS flags the number as incorrect, the IRS sends the payer a CP2100 or CP2100A notice. The payer then has to withhold 24% on future reportable payments to you until you supply a correct TIN.9Internal Revenue Service. Backup Withholding “B” Program Nearly a quarter of your payments go to the IRS instead of to you, and unwinding it can take months.

Reopening a Closed Account

If you closed your business account earlier and now need to resume operations under the same entity, call the Business and Specialty Tax Line at 800-829-4933.1Internal Revenue Service. Telephone Assistance Contacts for Business Customers The IRS does not publish a formal reactivation procedure, but because the EIN stays permanently tied to your entity, no new number is issued. The agent will typically walk you through submitting a written request that includes the entity’s legal name, EIN, address, and a statement that you intend to resume filing, signed by an authorized officer or partner.

Processing time depends on IRS workload and can run several weeks. If a return is due before the account is formally reopened, ask the agent on the phone how to file in the meantime.

When You Need a New EIN Instead

Some structural changes mean the old EIN can’t come back at all, and you need to apply for a new one. The general rule is that a significant change in ownership or entity type triggers a new EIN.10Internal Revenue Service. When to Get a New EIN The main triggers:

  • Sole proprietors need a new EIN when they incorporate, form a partnership, or declare bankruptcy.
  • Partnerships need a new EIN when they incorporate, convert to a sole proprietorship, or dissolve and form a new partnership. A change in partners that doesn’t terminate the partnership does not require a new EIN.
  • Corporations need a new EIN when they receive a new charter from the secretary of state, create a subsidiary, convert to a partnership or sole proprietorship, or merge to form a new corporation. A surviving corporation after a merger does not need one.
  • LLCs need a new EIN when they terminate and form a new corporation or partnership, or when a single-member LLC has to start filing employment or excise tax returns.

Applying for a new EIN is free and takes minutes online through the IRS website. You can also file Form SS-4 by fax or mail.11Internal Revenue Service. Get an Employer Identification Number

Skip the Paid Verification Sites

The IRS issues EINs for free and verifies them for free. Third-party websites nonetheless charge consumers as much as $300 for EIN applications or lookups, sometimes using IRS-like logos, colors, and even the letters “IRS” in their domain names. In 2025, the Federal Trade Commission issued warnings to operators of these sites for implying an IRS affiliation they don’t have.12Federal Trade Commission. FTC Warns Operators of Websites that Charge for an Employer Identification Number and Claim Affiliation with the IRS The IRS itself warns that you should never pay a fee for an EIN.11Internal Revenue Service. Get an Employer Identification Number If a site asks for payment to verify or look up an EIN, go to irs.gov directly. Operators who violate the FTC’s Impersonation Rule face civil penalties of up to $53,088 per violation.