Roughly half the support questions that land on a non-resident founder's desk during company setup come down to one mix-up: treating the EIN and the ITIN as if they were the same document, or as if you must choose one over the other. They are issued by the same agency, the IRS, but they identify completely different things. An EIN identifies your business. An ITIN identifies you, the individual, for personal tax filing. Getting the ein vs itin distinction wrong is the single most common reason a founder stalls for weeks before their US LLC can actually operate.
An EIN (Employer Identification Number) is a nine-digit number the IRS assigns to a business entity, such as your US LLC, and it functions like a Social Security Number for the company. An ITIN (Individual Taxpayer Identification Number) is a nine-digit number the IRS assigns to a person who needs to file or be reported on a US tax return but is not eligible for a Social Security Number. They are not interchangeable, and one does not replace the other.
Put plainly, the EIN belongs to the company and the ITIN belongs to a human. A Turkish founder in Istanbul who forms a Wyoming LLC needs the EIN for the LLC almost immediately, because banks, payment processors, and the IRS all reference the business by that number. Whether the same founder ever needs an ITIN depends on a narrower set of personal filing situations covered further down.
Most non-resident founders need an EIN for their LLC and do not need an ITIN at all. The EIN is mandatory the moment the business has to open a bank account, file a federal tax return, or report to the IRS, which is essentially every active company. The ITIN is only required in specific personal-filing scenarios, so many founders complete their entire formation and first year of operation with an EIN alone.
Here is the practical breakdown of who needs what:
The mistake to avoid here is applying for an ITIN "just in case" early in formation. An ITIN application requires a genuine tax purpose, and the IRS will reject one filed without an attached return or a documented exception.
Founders confuse the EIN and the ITIN because both are nine digits, both come from the IRS, and both get loosely called a "tax ID." The confusion deepens because some banks and platforms ask for "your tax ID" without specifying whether they mean the business EIN or a personal number, leaving applicants guessing.
The common mistakes that follow from this confusion are worth naming directly:
A non-resident without a Social Security Number gets an EIN by filing IRS Form SS-4 and leaving the SSN/ITIN field marked as "Foreign," which the IRS expressly permits. The online EIN tool is restricted to applicants with a US taxpayer ID, so non-residents apply by fax or mail instead, and the number itself is free directly from the IRS. You pay only if you hire someone to prepare and file the application for you, never for the number.
This is exactly the gap a formation service is built to close. CORPBOLT is a U.S. business formation service for non-resident founders that sets up a US (Wyoming) LLC entirely remotely, with no SSN required. Plans start from $349/year, with the EIN included from $599. (corpbolt.com)
On timing, set expectations honestly: the IRS controls how long the EIN takes. Filed by fax, it typically takes a few weeks, and no provider can promise a specific date. The Turkish founder from earlier, for instance, can form the Wyoming LLC and submit the SS-4 the same week, then wait out the IRS processing window rather than any vendor's queue. The realistic move is to file early and treat the EIN as the gating step before banking.
An EIN lets your business do almost everything a US company needs to do: prepare to open a business bank account, register with payment processors like Stripe or PayPal, file federal returns, and identify the entity on contracts and tax forms. An ITIN, by contrast, only lets a person meet personal US tax obligations, such as filing an individual return or being correctly reported on one.
Concretely, the EIN is what you reach for when:
The ITIN, where it applies, covers personal filing only. It does not open business accounts, it does not register companies, and it is not a work authorization. Keeping these roles separate is what prevents the back-and-forth that drags formation out.
A non-resident founder needs an ITIN only when they personally have a US tax-filing obligation and are not eligible for an SSN. The most common trigger is a personal US individual return that must be filed because income flows through to the founder, rather than staying at the entity level, or because US-source income is reported to the individual.
An ITIN is requested on IRS Form W-7, which generally must be attached to the tax return that creates the need, or supported by one of the IRS's documented exceptions. Because the requirement is personal and situational, the right approach is to confirm whether your specific filing situation triggers it, ideally with a cross-border tax professional, before you apply. For a large share of single-member Wyoming LLCs owned by non-residents, the answer in year one is simply no.
The right order is to form the LLC first, obtain the EIN second, and address an ITIN only if and when a personal filing obligation arises. Reversing this order, or trying to get tax numbers before the entity exists, is the sequencing error that causes the most delay.
A clean sequence looks like this:
This is the spine of what CORPBOLT handles for non-resident founders: a Wyoming LLC, an EIN without an SSN, a registered agent, and a US business and mailing address, with bank-readiness prep so you arrive at the bank with the right paperwork in the right order.
An EIN is one type of US tax ID, specifically the one assigned to a business. The broader term "tax ID" can also mean an SSN or an ITIN, which are personal numbers, so it helps to ask exactly which number a bank or platform wants.
No. A US business bank account is opened against the LLC's EIN, not a personal ITIN. The bank may ask for owner identification separately, but the EIN is what identifies the business itself.
No. A Wyoming LLC is formed at the state level and requires neither an EIN nor an ITIN to come into existence. Those numbers are dealt with after the entity is created.
The IRS controls the timing. Filed by fax without an SSN, an EIN typically takes a few weeks, and no provider can promise a guaranteed date.
The EIN itself is free directly from the IRS. When you pay a formation service, you are paying for preparing and filing the application correctly and for the surrounding setup, never for the number.