How to open a US business account without an SSN

If you run a US LLC from outside the country, a US business account without SSN is reachable through the EIN-only path. Partner banks that accept non-resident founders will ask for an EIN letter, formation documents, a passport, and a real business address. The account opens on the entity, not on a Social Security Number you do not hold.

Why does the standard path fail without an SSN?

Walk into a US branch and the account application starts by asking for the signer's Social Security Number. Branch software is built for US persons who file a personal 1040, and the compliance team scores you against consumer identity databases keyed to that number. Without one, the file stalls at customer identification, and most branches will not run the enhanced diligence a foreign beneficial owner requires.

The workaround is not to fake the number. It is to use fintech onboarding flows built for the entity, where the tax ID that matters is the LLC's EIN and the individual identity check runs off a passport rather than a Social Security trace. Mercury, one of the more widely used options, states that non-US founders qualify when the company is formed and registered in the United States or a US territory, and its listed document set is company formation documents, the IRS-issued EIN letter, and a government-issued ID such as a passport source: mercury.com. No SSN appears in that list for the founder of a foreign-owned US entity.

The concrete data point that trips most first-time applicants: the IRS online EIN Assistant is closed to founders whose principal place of business sits outside the US, and it also requires the responsible party to already hold an SSN, ITIN, or existing EIN source: irs.gov. So you file Form SS-4 by fax or mail, wait for the EIN letter, and only then start the bank application. Founders who skip that sequence get rejected at the tax-ID step every time.

Which fintechs actually accept EIN-only, and which still require SSN?

The market splits into three groups, and confusing them is the most common reason non-resident founders lose weeks.

Accept EIN only for the entity, passport for the founder: Mercury is the reference here for US LLC founders based abroad, with formation documents, EIN letter, and passport listed as the core file source: mercury.com. Wise Business also accepts an EIN plus a foreign passport for non-resident owners, though Wise is a multi-currency payments account rather than a chartered US bank account, so it fits alongside a US operating account rather than replacing one.

Ask for SSN or ITIN from the beneficial owner: Traditional US retail banks, and several fintechs whose partner bank runs consumer-grade identity checks on every signer, still require an SSN or ITIN for owners at the 25 percent threshold. Coverage on Relay has swung both ways in public write-ups, with some non-resident founders approved on EIN and passport and others declined for lack of an ITIN, which suggests the answer depends on the partner bank's policy in force the day you apply source: llcuniversity.com.

No US entity required at all: A small set of neobanks issue USD accounts to foreign entities directly, but the receiving rails, cards, and processor coverage differ from a US-domiciled operating account. If your customer contracts, marketplace payouts, or Stripe account expect a US LLC and EIN, this group does not solve your problem.

The right filter is not brand preference. It is whether the partner bank behind the fintech will complete Customer Identification and Beneficial Ownership on your file with a passport and formation set, or whether its policy pins on an SSN or ITIN for anyone holding 25 percent.

What does Plaitr do differently for non-resident founders?

Plaitr issues US business accounts to global founders through licensed partner banks, with funds held at the partner institution rather than by Plaitr. The account is non-custodial by design, so the balance sits inside a chartered US bank in your LLC's name, and Plaitr provides the software layer that runs banking, payments, stablecoin rails, and auto accounting on top.

Open the account with the same document set the EIN-only path expects: certificate of formation from Wyoming, Delaware, or your registered state; operating agreement; EIN letter from the IRS; passport for each beneficial owner at or above 25 percent; and a real business address that is not a PO box, UPS store, or bare registered-agent address. Mercury explicitly rejects PO boxes and UPS boxes as the principal place of business, and every partner bank on the EIN-only path applies a similar rule source: mercury.com.

Move money the way exporters actually get paid: wire in USD, receive ACH, and settle to and from stablecoin counterparties on the same ledger, with entries flowing into the accounting layer without a second export step. Cards for spend management are coming soon.

Operate under Wyoming governing law, which is the standard choice for non-resident LLC founders who want a defined legal home for the operating agreement and the platform contract.

What does the application look like in practice?

Assemble the file before you start. Certificate of formation and operating agreement, the IRS EIN CP 575 or 147C letter, a color scan of the passport for every 25 percent owner and any operating controller, a business address that resolves to a real premises, and a short description of what the business sells, to whom, and where the money comes from. The last item is what compliance teams read most carefully on a non-resident file.

Submit the application, answer the source-of-funds and expected-volume questions with numbers you can back up from invoices or contracts, and wait for the review. Approvals for clean files with an established EIN typically resolve in days rather than weeks. The rejections that recur:

• PO box or registered-agent-only address listed as the principal place of business.
• EIN letter missing, or an EIN reference number pasted in place of the CP 575 or 147C letter.
• Beneficial ownership under-declared, with a 25 percent owner omitted from the file.
• Country of residence on the sanctions or restricted list for the partner bank.
• Business description that does not match the counterparties or the geography of expected inflows.

Fix each of these before you submit, and the EIN-only path is a matter of days.

What to do next?

If you hold a US LLC, an EIN letter, and a passport, the account is reachable today. Start the application at demo.plaitr.com and bring the document set above. If the EIN is still in flight, file Form SS-4 by fax to the international unit first, then return once the CP 575 arrives.