How to Verify a US LLC's EIN From Overseas

A founder in Bengaluru signs a contract with a US client, and the client's accounts team asks for the LLC's EIN on file before they release the first payment. The founder has the nine-digit number on an email, but the client wants to know it is real and that it matches the company name. From overseas, with no US accountant in the room and no SSN tying you to the system, that verification step can feel opaque. This is a guide to confirming a US LLC's EIN when you are sitting thousands of miles from the IRS.

What does it mean to verify an EIN number?

To verify an EIN number means confirming that a specific nine-digit Employer Identification Number is genuinely assigned by the IRS to a specific business entity, in the format XX-XXXXXXX. Verification answers two questions at once: does this number exist on the IRS register, and does it belong to the company whose name is attached to it. For a non-resident who owns a US LLC, the EIN is the federal tax identifier the IRS issued to the business, and it is the number banks, payment processors, and clients reference when they want proof the company is real.

It helps to separate two things people blur together. Looking up an EIN means finding a number you do not have. Verifying an EIN means checking a number you already hold against the entity it should match. For most overseas founders the task is verification, because you already received the number when the LLC was formed.

What is the official IRS document that confirms an EIN?

The official IRS document that confirms an EIN is the CP 575 notice, the computer-generated confirmation letter the IRS sends when it first assigns the number. The CP 575 states the legal name of the entity, the EIN, and the date of assignment, and it is the cleanest single proof an LLC can present. If the original CP 575 is lost, the IRS can issue a replacement confirmation called Letter 147C, which serves the same purpose and is often what banks and processors will accept in its place.

Keep these documents straight, because reviewers ask for them by name:

• CP 575 is the one-time assignment notice issued when the EIN is granted. It cannot be reissued in its original form once the application is processed.
• Letter 147C is the replacement letter you request when the CP 575 is gone. The IRS will mail or fax it to the responsible party on record.
• A signed copy of Form SS-4, the application used to obtain the EIN, is not an IRS confirmation but it does show the name and number you submitted.

When a client or bank says they need EIN verification, they usually mean one of the documents above, not a screenshot of an email. Knowing the right name to ask for shortens the conversation considerably.

How can non-residents verify an EIN from overseas?

Non-residents can verify an EIN from overseas by calling the IRS Business and Specialty Tax Line and requesting a Letter 147C as the responsible party, or by retrieving the original CP 575 from their own formation records. The IRS does not run a public, searchable EIN database for private companies, so there is no website where you simply type a number and get a yes or no. Verification runs through the IRS directly or through the paperwork you already hold.

From outside the United States, the practical routes look like this:

1. Check your own records first. The CP 575 or a 147C from formation is the fastest confirmation. If your formation service or registered agent stored these, you may already have what the client wants.
2. Call the IRS Business and Specialty Tax Line. As the responsible party named on the SS-4, you can request a 147C. The IRS will verify your identity and then fax or mail the letter. International callers should expect to use the international phone option, and time zones mean planning the call for US business hours.
3. Ask the counterparty what they actually need. A US client confirming a vendor sometimes just needs the EIN on a completed Form W-9, which the LLC signs itself. That is a self-certification, not an IRS lookup, and it is often enough to release a payment.

One caution for overseas founders: paid third-party "EIN verification" databases exist, but they scrape public filings rather than query the IRS, so they can be outdated or blank for a young LLC. The IRS itself, or your formation paperwork, is the authority that settles the question.

The India example, in practice

Take the Bengaluru founder again. Her client did not need an IRS letter at all. They needed her Wyoming LLC's name and EIN on a signed Form W-9. She had both on the CP 575 her formation provider had saved, copied the number onto the W-9, and the payment cleared. The verification she feared was a five-minute task once she knew which document answered the request.

Getting your EIN without an SSN

You can get a US LLC's EIN without a Social Security Number by filing Form SS-4 with the IRS and leaving the SSN field handled the way the instructions allow for foreign responsible parties. The IRS online EIN tool requires an SSN or ITIN, so non-resident founders who have neither cannot use it. Instead, the SS-4 is submitted by fax or mail, and by fax the IRS typically takes a few weeks to issue the number. The IRS controls that timeline, and no service can promise a specific date. The EIN itself is free from the IRS. You only ever pay to prepare and file the application, never for the number.

This is the part of formation that trips up the most people abroad, which is why some founders use a service built for the situation. CORPBOLT is a U.S. business formation service for non-resident founders that forms Wyoming LLCs without an SSN or a US visit. Plans start from $349/year, with the EIN included from $599. (corpbolt.com)

Once that EIN is assigned, the verification path above becomes straightforward, because the CP 575 lands in your records and the IRS has the responsible party on file for any future 147C request. Handling the LLC, the EIN, the registered agent, and a US business address in one place means the documents you will later be asked to verify sit together rather than scattered across providers.

What can you do once the EIN is verified?

Once the EIN is verified, the LLC can use it to file federal returns, sign tax forms like the W-9, and present itself as a legitimate US entity to clients and platforms. The EIN is the thread that ties the business to the IRS, so a confirmed number is the foundation for nearly every formal step that follows. Verification is rarely the end goal; it is the gate you pass through first.

Common next steps that depend on a verified EIN include:

• Completing tax documentation such as Form W-9 for US clients withholding or reporting payments.
• Preparing to open a US business bank account, where the bank or platform will review the EIN as part of its own checks and makes the final decision on its own.
• Setting up payment processors like Stripe or PayPal, which request the EIN during business onboarding.
• Filing the LLC's federal tax obligations under the correct identifier.

None of these are guaranteed by the number alone. The bank, processor, or agency runs its own review, and verification simply gives them a clean starting point.

Frequently asked questions

Is there a free public IRS database to verify any EIN?

No. The IRS does not publish a free, searchable database of EINs for private companies. Tax-exempt organizations can be looked up through the IRS Tax Exempt Organization Search, but a standard LLC's EIN is verified by holding the CP 575, requesting a Letter 147C, or having the entity self-certify on a Form W-9.

Can someone other than the owner verify my LLC's EIN?

The IRS will only confirm an EIN to the responsible party named on the SS-4, or to an authorized representative with proper authorization on file. A third party cannot call the IRS and have your number confirmed without that standing. This is why most counterparties rely on a signed W-9 or a copy of your CP 575 rather than contacting the IRS themselves.

How long does it take to get a replacement 147C from overseas?

The timing is controlled by the IRS, not by you, and it depends on call volumes and whether the letter is faxed or mailed internationally. A faxed 147C can arrive the same day in some cases, while mail to a non-US address can take considerably longer. No provider can promise a fixed date because the IRS sets the pace.

Does my EIN change if I formed the LLC without an SSN?

No. An EIN assigned to a Wyoming LLC formed without an SSN is an ordinary EIN, identical in format and function to any other. It is issued through Form SS-4 by fax or mail rather than the online tool, but once granted it behaves the same way for verification, banking prep, and tax filing.

What should I do if a "verification site" shows the wrong details for my EIN?

Treat third-party verification sites as unofficial. They pull from public filings that can lag or contain errors, so a mismatch there does not mean your EIN is wrong. Confirm against your CP 575 or a 147C from the IRS, which are the records that actually settle the matter.