--- title: "How to Open a U.S. LLC Fast — Even If You're Not American" description: "End-to-end procedure for forming a US LLC as a non-resident: state choice, EIN, banking, and the annual filings nobody warns you about. 100% remote." category: Incorporation date: 2026-01-22 readTime: 8 min read author: clara keywords: - US LLC - open LLC non-resident - Wyoming LLC - Delaware LLC - LLC for foreigners - US business formation - EIN number image: "https://leasum.com/images/blog/how-to-open-a-us-llc-fast-even-if-youre-not-american.og.jpg" canonical: "https://leasum.com/blog/how-to-open-a-us-llc-fast-even-if-youre-not-american" lang: en --- Opening a US LLC as a non-resident is simpler than incorporation websites make it sound. Everything can be done remotely with a passport and a foreign address. The theory fits in five steps. The practice is five places where most non-resident founders get stuck: the EIN that takes two months, the Mercury account that gets declined, the BOI report nobody mentioned, the Form 5472 missed in April, the registered agent who disappears after year one. This article walks through the full procedure. A framing point first: **forming a US LLC does not change your tax situation in your home country as long as you live there**. The LLC is a US legal entity; your personal taxes follow your residence. If your goal is operational (US clients, US payment rails, US-facing image), the LLC does the job. If your goal is tax-driven, the LLC alone is not enough — that's a separate conversation about residency. ## Step 1: pick the state For a non-resident, two states cover 95% of cases: Wyoming and Delaware. The rest (New Mexico, Florida, Nevada) only serve narrow profiles. The practical rule is one question: raising US venture capital in the next two years? If yes, Delaware. Otherwise, Wyoming. The two practical differences are cost (Wyoming is cheaper to maintain) and the way investors read each one (Delaware is the default they expect on a US cap table). ## Step 2: the filing The filing is the submission of the formation documents (Articles of Organization) to the Secretary of State. Technically, this step is what creates the LLC. Three things to provide: - The LLC name, which must contain "LLC" and not already exist in the state register. - The address of a local [registered agent](/glossary/registered-agent), required to receive official mail and service of process. You don't have a US address, so you go through a provider (Northwest, LegalZoom, or a specialist service for non-residents). - The identity of the organizer, the person filing the documents. That can be you, or it can be the provider. The state returns a **Certificate of Formation** that establishes the LLC's existence. Anywhere from a few hours to a few days depending on the state and filing method. Once that certificate is in hand, the LLC legally exists. Two major pieces remain before it's actually operational. ## Step 3: the EIN (the first real bottleneck) The [EIN](/glossary/ein-employer-identification-number) (Employer Identification Number) is the LLC's federal tax ID. It's free from the IRS. But without an EIN, nothing else works: no bank account, no Stripe, no serious invoice to a US client. And this is where non-residents hit the first wall. The IRS online application is closed to founders without a Social Security Number or ITIN. You have to send **Form SS-4** by fax or by mail. Official timeline: 4 to 8 weeks. In practice, sometimes longer during tax season, especially March–April. Several providers offer an "expedited" EIN for a few hundred dollars, where they call the IRS directly on your behalf using a third-party designee authorization. Turnaround drops to a few days. It's rarely strictly necessary, but when a US client is waiting on an invoice for next week, it changes the math. Worth knowing: since 2024, the LLC must also file a [BOI report with FinCEN](/glossary/boi-report-fincen) within 90 days of formation. It's free, done online, and easy to forget. The reporting requirement has been through legal back-and-forth, so check current enforcement status before assuming it does or doesn't apply. ## Step 4: the bank account (the second real bottleneck) This is the step that decides whether the LLC actually serves a purpose. An LLC without a bank account is a $60-a-year shell that generates nothing. For a non-resident, the realistic options are US fintechs: - **Mercury**: the most popular among international founders. Online application, file reviewed in a few days, multi-currency, clean international wires. - **Relay**: very close to Mercury, sometimes more tolerant on edge profiles. Good fallback if the first application gets declined. - **Wise Business**: useful as a complement if you invoice in EUR, GBP, or other non-USD currencies — the FX margin is the lowest on the market. The application requires the EIN, the Certificate of Formation, your passport, a recent address proof from your home country, and a website or credible activity description. The most common rejection reasons: business model flagged as high-risk (crypto, gambling, certain financial services), missing or sloppy website, mismatch between the address on file and the name on the passport, sensitive nationality from a KYC standpoint. When Mercury declines, the usual playbook is Relay with a cleaned-up file — and at that stage the founder profile counts as much as the LLC itself. For the full picture on multi-currency accounts and the banking stack, see [US LLC multi-currency banking: Mercury, Wise, Stripe](/blog/us-llc-multi-currency-banking-mercury-wise-stripe). ## Step 5: Stripe, invoices, operations With the EIN and the bank account, the LLC is operationally ready. Stripe US opens directly with the EIN. For many international freelancers and small SaaS founders, this is the trigger: cards processed at US fees and US FX, funds landing in Mercury in T+2, and a checkout page that benefits from the US perception. The LLC can issue invoices from day one. No state imposes specific bookkeeping requirements on a pass-through LLC, but a minimum (expense categorization, monthly P&L, receipt retention) is non-negotiable for the annual filings. ## The part the sales funnel doesn't show A US LLC is not a product you buy once. Every year, it must produce: - an **annual report** with the state, on a fixed date depending on the state of formation, - a [Form 5472](/glossary/form-5472) + pro forma 1120 with the IRS for non-resident [single-member LLCs](/glossary/single-member-llc), due April 15, with a $25,000 penalty per missed filing, - a registered agent renewal, - BOI updates with FinCEN whenever ownership, address, or ID documents change. The full breakdown is in [US LLC annual report and state compliance for non-residents](/blog/us-llc-annual-report-state-compliance-non-resident). What matters here: these filings are not optional. Missing them is the number one cause of death for non-resident LLCs, ahead of every other reason combined. ## Total timeline For someone who organizes correctly and doesn't get the bank account declined: - Day 1: filing submitted, certificate received in 1 to 3 days depending on the state. - Days 2 to 10: SS-4 filed by fax, or a few days with an expedited service. - Days 10 to 20: BOI report submitted, Mercury application opened. - Days 20 to 30: bank account active, Stripe live, first invoices going out. **Three to six weeks** for a fully operational LLC. If the EIN drags, if Mercury declines, or if the BOI slips through, that timeline doubles without much trouble. ## The tax reminder The LLC is registered in the US, has an EIN, a Mercury account, a Stripe account. As long as you remain tax resident in your home country, none of that changes your personal tax situation. The LLC's profit flows through to you and gets reported where you live. Whether you owe additional US tax depends on whether the LLC creates a US trade or business and a US permanent establishment under the relevant treaty — that analysis is specific to your activity and your residence country, and it's worth doing properly before assuming either way. If the goal behind the LLC is operational, it does the job. If the goal is fiscal, the LLC alone won't change the outcome — a change of residence is what shifts the tax base. The LLC is a tool, not a strategy. ## Conclusion The procedure fits in five steps. The theory is clean. The practice mixes an EIN to request from the IRS by fax, a KYC file to assemble for Mercury, a BOI to file inside the 90-day window, a registered agent to renew, and IRS plus state filings every year. None of this is insurmountable on its own. Stacked together, they consume time and energy, and by year two roughly 30% of non-resident LLCs end up "not in good standing". This is exactly what we do at Leasum. We form the LLC end-to-end — state filing, EIN, BOI report, registered agent, Mercury onboarding — and carry the annual compliance (state report, Form 5472, registered agent renewal) inside the same engagement. The founder receives the Certificate of Formation, the EIN, and the bank account live, and never has to touch an IRS fax line, a FinCEN portal, or a Mercury KYC follow-up. The honest comparison isn't price vs DIY. It's the cost over five years: a missed 5472 alone is a $25,000 penalty, and the most common DIY mistakes (BOI window missed, registered agent lapsed, EIN application stalled, Mercury declined with no fallback) are the ones we've already engineered around. If you want a US LLC that's live in three to six weeks and stays in good standing after that, this is the kind of work that's better delegated end-to-end than handled piece by piece.