How to Open a U.S. Business Bank Account as a Non-Resident (2026 Guide)
A step-by-step playbook for international ecommerce sellers from South Africa, the UK, the EU, India and Australia — covering the Wise Business fast path, the U.S. LLC plus Mercury pro path, real routing numbers, FDIC insurance, and how to get state Department of Revenue portals to accept your ACH payments on the first try.
Quick check — Want to see every U.S. state where you owe sales tax, in 30 seconds? Use our free Nexus Calculator — enter your per-state revenue and FBA inventory states; get an instant compliance footprint.
Why You Need a U.S. ACH-Capable Bank Account (Even If You’re Based in Cape Town)
If you sell into the United States from anywhere outside it — Cape Town, Manchester, Berlin, Bengaluru, Sydney — you will eventually run into the same wall. The state where you have nexus tells you to remit sales tax via ACH debit. Your Amazon disbursement schedule says “U.S. bank account” and the alternative is a fourteen to thirty day hold. Your home bank, however accommodating, cannot originate a domestic U.S. ACH transaction because it is not a member of the Federal Reserve’s payment system.
I’m Paul le Roux, a Chartered Accountant with the ICAEW and CA(SA), and over twenty years of cross-border tax practice I have watched this single operational problem block more international sellers from scaling into the U.S. than any tax-law question ever has. The good news is that the solution stack has matured substantially since 2023. You no longer need to fly to Miami, hold a B-1 visa, queue at a Chase branch and hope for the best. You can do everything from your kitchen table.
Three structural realities drive the need for a U.S. account. First, virtually every state Department of Revenue — and there are more than forty of them collecting sales tax — has built its remittance portal around ACH. Credit card payments work but cost two to four percent. Wire transfers cost thirty to fifty dollars per remittance and take three to five business days. ACH from a valid nine-digit routing number costs nothing and clears in one to two business days. If you have nexus in six states and file monthly, the wire-fee path alone runs you $2,160 to $3,600 a year before you even count the cash-flow drag. Second, the major marketplaces — Amazon, Walmart, Shopify Payments — pay U.S. accounts in one to two business days and foreign accounts on a fourteen to thirty day delay. Third, your home bank — Standard Bank, Capitec, ABSA, HSBC, Barclays, Lloyds, Deutsche Bank, ICICI, HDFC, NAB, Westpac — does not have an account at the Federal Reserve. It cannot originate ACH. There is no settings page that fixes this.
The accounts and routing numbers below solve that problem in a regulator-friendly, audit-defensible way. If you have not yet registered for sales tax in the states where you have nexus, see our companion guide on U.S. sales tax registration without a U.S. address before working through this banking checklist.
The Two Pathways for Foreign Founders
Every foreign founder I work with ends up choosing between two routes — or, more often, runs both in parallel. Understanding the trade-offs before you start saves weeks of wasted effort.
Pathway A: No U.S. LLC Required
This is the Wise Business path, with Payoneer and (in select countries) Revolut Business as alternatives. You keep your existing home-country company. You apply online from your home country. Wise issues you USD account details — a real Federal Reserve routing number belonging to its partner bank, Community Federal Savings Bank, and a unique account number. State DOR portals see a valid nine-digit routing number and accept it. Marketplaces accept it. You can be operational in three to seven business days, with no EIN, no LLC, no Delaware registered agent. The trade-off is that your funds sit in a pooled omnibus account at the partner bank, so the FDIC coverage attaches to that omnibus account, not to your individual share. In a Wise insolvency you would be an unsecured creditor competing for recovery. Wise’s regulatory standing and capital reserves are strong, but the legal posture is materially different from a true bank account.
Pathway B: U.S. LLC + Real Bank
This is the Mercury path, with Relay, Brex, Novo and Bluevine as comparable alternatives. You form a Delaware or Wyoming LLC (one to two days), obtain an EIN from the IRS by phone (one day), then apply to Mercury or Relay with your formation documents (four to seven days). The account is held in your LLC’s name at an FDIC-insured partner bank — Choice Financial Group or Evolve Bank & Trust in Mercury’s case — and you get the full $250,000 of FDIC coverage that attaches to a corporate deposit. You also get a debit card, unlimited ACH, wire capability and accounting integrations. The trade-off is two to four weeks of setup, around $250 to $500 of formation cost in year one, and around $200 a year in registered agent and franchise fees thereafter. For most sellers doing more than $50,000 a year in U.S. revenue, the cost is trivial relative to the regulatory peace of mind.
My standard recommendation for active cross-border ecommerce clients is to run both — Wise for speed and FX, Mercury for legitimacy and any state portal that gets fussy. The two accounts cost almost nothing to maintain side-by-side.
Wise Business: The Fast Path
Wise Business is the most mature non-bank solution and the default first move for almost every international seller I onboard. The reason is simple: it is the lowest-friction way to get a real U.S. routing number into your business name, and it works from the broadest list of home countries — South Africa, the United Kingdom, every EU member state, India, Australia, Canada, plus dozens more.
The application is entirely online at wise.com. You will need your home-country business registration (CIPC for South Africa, Companies House for the UK, the national commercial register for EU jurisdictions, MCA registration or partnership deed for India, ASIC or ABN documentation for Australia), a passport for the principal owner, a recent proof of business address — a utility bill or bank statement dated within three months works — and a description of your business model and expected monthly volume. Wise’s identity verification is mostly automated; expect approval anywhere from a few hours to seven business days, with most sellers receiving approval inside three.
Once active, your USD balance gives you a routing number of 026073150 — that is Community Federal Savings Bank, an FDIC-insured institution that participates fully in the Federal Reserve’s ACH network — and a unique ten to twelve-digit account number assigned to your business. State DOR portals validate the routing number against the Federal Reserve’s database, see a legitimate ACH-participating bank, and let the payment through. The portal does not ask, and the validation logic does not check, whether the underlying account is held directly at the bank or via Wise’s intermediated structure.
The pricing is the other reason Wise dominates this category. There are no monthly fees, no minimum balance, no charge to receive USD payments from Amazon or to send ACH debits to state authorities. Currency conversion runs roughly 0.4 to 0.6 percent on the mid-market rate — about an order of magnitude cheaper than traditional bank FX. If you are billing in USD and remitting USD, you pay almost nothing.
Mercury: The Pro Path
Mercury is the account I open second for every client serious about U.S. ecommerce. Where Wise is a payment processor with a routing number bolted on, Mercury is a true business banking platform that just happens to deliver its banking through partner institutions — Choice Financial Group (routing 091311229) and Evolve Bank & Trust, both FDIC-insured. Your deposits sit in an account held in your LLC’s legal name, and the $250,000 FDIC limit attaches to your business as a depositor.
The application requires more documentation than Wise but is still fully remote. Mercury will want your articles of organization or certificate of formation, your EIN confirmation letter (the IRS Form CP 575 if you have it; the verbal EIN reference number from your phone call to the International Section is also acceptable if it is recent), your passport, a proof of address for you personally and for the LLC (your registered agent address is fine), and a thorough description of your business — marketplaces, product categories, monthly volume, source of capital. The source-of-funds question is the most common point of friction for foreign founders. Be specific: “Personal savings of $15,000 USD accumulated from salary over four years, plus reinvested ecommerce profits” gets through. “Personal funds” alone often triggers follow-up questions and a slower review.
Mercury’s standard checking account has no monthly fee, no minimum balance, no charge for ACH or domestic wires received, and includes a Mastercard debit card. International wires sent cost a flat $5. Approval typically lands within four to seven business days, although I have seen well-documented applications come back in twenty-four hours and lightly-documented ones run two to three weeks while the compliance team requests further information.
The features that genuinely matter for an ecommerce operator are unlimited free ACH in both directions, a clean API and integrations with Xero, QuickBooks and most ecommerce accounting tools, the ability to spin up virtual debit cards with per-card spend limits, and a usable mobile app. For a foreign founder running a U.S. LLC, Mercury feels closer to how a modern bank should work than what most traditional U.S. banks deliver.
Relay, Brex, Novo, Bluevine — The Alternatives
Mercury is not the only option in Pathway B. The market has matured into roughly five comparable players, each with subtly different strengths.
Relay sits closest to Mercury on functionality. Same FDIC-insured partner-bank structure, same zero-fee business checking, same unlimited free ACH, same accessibility for foreign founders with a U.S. LLC and EIN. Relay differentiates on multi-account architecture — you can spin up to twenty checking accounts under a single login, which suits operators who like to segregate sales tax reserves, payroll and operating cash. The application timeline is comparable, four to seven business days.
Brex was historically the most foreign-founder-friendly platform but has tightened materially since 2024. As of 2026, Brex requires an established U.S. LLC and EIN, conducts more rigorous underwriting and AML review than Mercury or Relay, and approval typically takes fourteen to thirty days. Brex makes sense if you want higher transaction limits, charge-card capability or sophisticated expense-management tooling. It is overkill for a seller whose primary need is to remit sales tax and receive marketplace payouts.
Novo serves a similar small-business segment to Mercury, with FDIC-insured accounts through partner banks, zero monthly fees and unlimited ACH. It has historically had a slightly lower approval rate for foreign founders compared to Mercury, and its feature set around accounting integrations and virtual cards is less developed.
Bluevine sits at the smaller end and tends to be most useful for sellers who also want access to its working-capital lending products. The core checking account is functionally equivalent to Mercury’s for ACH purposes.
For traditional banks — Chase Business Complete Banking, Bank of America Business Advantage, Wells Fargo Initiate Business Checking — the catch remains the in-person requirement. You will need to physically visit a branch on a valid B-1 or B-2 visa, present a passport, an ITIN or SSN (which can take weeks to obtain), and the LLC formation documents. If you already travel to the U.S. for trade shows or supplier visits, the side trip to a branch is worth it for the prestige and the access to credit products. If you don’t, do not let this become the blocker that stops you from getting compliant.
Why Your Local Bank Can’t Pay U.S. State DORs Directly
This is the single question I am asked most often by sellers who are new to U.S. ecommerce: “I already have a USD account at Standard Bank / Capitec / HSBC / Barclays / Lloyds / Deutsche Bank / ICICI / HDFC / NAB / Westpac. Why can’t I just pay California or Texas from that?” The answer is architectural, not policy-based, and it will not change.
The ACH network is administered by the Federal Reserve. Only financial institutions that hold reserves at the Fed and carry a U.S. banking license can originate or receive ACH transactions directly. Your home bank is regulated by the South African Reserve Bank, the UK’s PRA, the European Central Bank, the Reserve Bank of India, or APRA — not the Federal Reserve. Those regulators run their own domestic payment systems (PayShap and EFT in South Africa, Faster Payments in the UK, SEPA in the EU, NEFT and IMPS in India, NPP in Australia). None of those systems connect to ACH.
What your home bank can do is send a SWIFT wire to a U.S. state Department of Revenue, but the cost and timeline make this commercially impractical for sales tax remittance. A single SWIFT wire from a South African or Indian bank to a U.S. DOR runs $30 to $50 in originating fees, plus another $15 to $25 in intermediary correspondent bank fees, plus a $15 to $25 receiving fee at the U.S. side. Settlement takes three to five business days. Multiply by six states filing monthly and the wire-only path costs $2,160 to $4,500 a year and creates serious timing risk against state filing deadlines.
The only sustainable solution is a U.S. routing number in the ACH network. Wise gives you 026073150. Mercury gives you 091311229. Either originates an ACH debit for free, clears in one to two business days, and is treated by state portals identically to a payment from a Chase or Bank of America account.
FDIC Insurance: What’s Covered and What Isn’t
FDIC — the Federal Deposit Insurance Corporation — was created in 1933 to insure deposits at member banks. The standard coverage limit is $250,000 per depositor, per insured bank, per account ownership category. For an international seller running a single-member U.S. LLC with a checking account at Mercury or Relay, the practical implication is straightforward: up to $250,000 of business cash held in that account is fully protected against bank failure.
Three nuances matter. First, the coverage attaches to the depositor of record, not to the platform you log into. Mercury holds your deposits at Choice Financial Group or Evolve Bank & Trust; both are FDIC-insured banks and your $250,000 coverage runs at the bank level. Relay uses different partner banks, with the same legal structure. Second, the coverage is per bank — so if you hold $200,000 at Mercury (Choice Financial Group) and $200,000 at Relay (a different partner bank), both balances are fully insured. If both happened to route to the same partner bank, you would have $400,000 sitting under a $250,000 cap and $150,000 of exposure. Mercury and Relay both publish their current banking partners; check before stacking large balances. Third, account ownership category matters. An LLC business account and your personal account at the same bank are separate ownership categories, each with its own $250,000 limit.
The critical exclusion: Wise Business is not FDIC insurance in the same legal sense. Wise’s USD balances are held in a pooled omnibus account at Community Federal Savings Bank. CFSB itself is FDIC-insured for its own deposit liabilities, but in a Wise insolvency, customer funds would need to be reconciled out of that omnibus pool and you would be a creditor of Wise, not directly an FDIC-insured depositor. Wise mitigates this through capital reserve requirements and ringfencing under UK and EU regulation, and there has been no failure of a Wise-equivalent in recent memory, but the legal posture is materially different from holding $250,000 at Mercury. If you routinely carry sales-tax reserves of more than $50,000 in your U.S. account, run them through Mercury rather than Wise.
Step-by-Step: A South African Seller’s 2-Week Setup
To make this concrete, here is the exact fourteen-day timeline I run for a South African Amazon FBA seller who has just hit nexus in three states and needs to remit sales tax inside the month.
Day 1 (Monday): Apply for Wise Business at wise.com. Upload CIPC company registration document, South African ID or passport, proof of address (FNB or Standard Bank statement within ninety days), and a one-paragraph business description naming Amazon FBA, your product category and your average monthly U.S. revenue. Expect identity verification within twenty-four hours.
Day 1 (same day): File a Wyoming LLC online at sos.wyo.gov/business. Pay the $100 state fee plus around $125 for a registered agent service. Confirm submission and download the receipt.
Day 2-3: Wise Business approves. Activate the USD balance. Note your routing number (026073150) and account number. Wyoming Secretary of State stamps your articles of organization — download them and the certificate of good standing.
Day 4 (Thursday): Call the IRS International Section on +1 (267) 941-1099 at 2:00 PM SAST (which is 8:00 AM Eastern Time). Have your LLC name, registered agent address, passport number and a business description ready. The call takes about twenty minutes. The agent reads your EIN over the phone. Write it down and confirm it.
Day 5: Start the Mercury application at mercury.com. Upload articles of organization, certificate of good standing, the EIN reference, your passport, and proof of your South African address. Be specific about source of funds (“Personal savings of R250,000 accumulated from salaried employment 2021-2025”), marketplaces, product line and expected monthly volume.
Day 6: In parallel, log into each U.S. state Department of Revenue portal where you are registered and add the Wise routing and account numbers as a payment method. Schedule the next sales tax filing for ACH debit at least five business days before the due date.
Day 10-12: Mercury approves. Note the routing number (091311229) and account number. Update your Amazon Seller Central disbursement bank to Mercury. Leave Wise as your secondary.
Day 13-14: Re-test each state DOR portal with the Mercury credentials as a backup payment method. You are now operationally complete.
This same sequence works for sellers based in the UK, EU, India and Australia — see our country-specific guides on U.S. sales tax for South African sellers, UK sellers, EU sellers, and Indian sellers for the local registration documents you will upload to Wise and the IRS call-time windows for your time zone.
Common Rejection Reasons and Workarounds
Even with the cleanest application, expect at least one of these to bite you. Knowing the workaround in advance saves a week of correspondence.
State DOR portal rejects your Wise routing number. Texas, Ohio and New York have historically been the most aggressive about flagging non-bank originators. The error message usually says “the routing number is not valid for this transaction” or “the account is not a bank account.” The workaround is to use your Mercury routing number (091311229) for that specific state and keep Wise for the others. This is why I push every active client to hold both accounts.
Marketplaces apply a holding period to Wise-paid disbursements. Amazon and Walmart sometimes treat Wise-issued account details as elevated risk and impose fourteen to thirty day holds on the first few payouts. The workaround is to register Mercury as the primary disbursement bank and keep Wise as a secondary destination.
Mercury asks for additional source-of-funds documentation. This is the single most common reason for an application getting stuck in review for two weeks. The fix is to pre-empt the question: in your initial application, state your source of capital in concrete numerical terms, describe your business model in a sentence or two with marketplace names, and attach a screenshot of your existing marketplace seller dashboard if you have one.
EIN call disconnects mid-application. The IRS line drops occasionally. Call back the same day. The agent will pick up where you left off if you give them your LLC name and your name.
Articles of organization name mismatch. Your Mercury application name, your EIN application name and your articles of organization must match letter-for-letter, including punctuation and the LLC suffix. “ABC Trading LLC” and “ABC Trading, LLC” are different entities to the IRS. Fix this by ordering a certified amended filing through your registered agent if a typo slipped through.
Routing or account number copy-paste error in a state portal. The ACH debit fails three to five business days later, by which time your filing deadline may have passed. Always paste, then re-read each digit against the source. Always schedule payments at least five business days early.
Done-For-You: How We Handle Banking Setup for Cross-Border Clients
Everything above is doable yourself in fourteen days. Many of my clients do exactly that. But for sellers who would rather not spend their first two weeks in the U.S. market filling in compliance forms instead of building product listings, we run the entire setup as a done-for-you service inside our broader U.S. sales tax compliance engagement.
What that looks like in practice: we form your Wyoming or Delaware LLC, serve as your registered agent in year one, place the IRS call to obtain your EIN on your behalf, prepare and submit your Wise Business and Mercury applications, handle the source-of-funds and AML documentation in language that gets through compliance review on the first attempt, register the accounts with every state DOR portal where you have nexus, and configure the ACH debit schedules against your filing calendar. You sign the LLC operating agreement, you provide a passport scan and a proof of address, and you are operational in roughly ten business days.
The same engagement covers your ongoing state sales tax registrations, monthly or quarterly returns, nexus monitoring, and year-end reconciliations. It is the same fixed-fee model we use for our existing cross-border clients in South Africa, the UK, the EU, India and Australia. If you are at the point where the compliance work is starting to eat into the time you should be spending on growth, this is the cleanest way out.
Frequently Asked Questions
1. Can I open a U.S. business bank account from outside the United States without ever visiting?
Yes. Both pathways covered in this guide — Wise Business and the LLC-plus-Mercury route — are fully remote. Wise Business is the simplest: apply online from South Africa, the UK, the EU, India or Australia using your home-country business registration and a passport, and you receive U.S. routing and account numbers within three to seven business days, with no requirement to enter the United States. Mercury and Relay are equally remote provided you have already formed a U.S. LLC and obtained an EIN, both of which can also be completed entirely online and by phone. The only U.S. banking option that still requires in-person presence is the traditional bank route — Chase, Bank of America, Wells Fargo — and even there the requirement is a single branch visit on a B-1 or B-2 visa, not residency. For the overwhelming majority of cross-border ecommerce sellers, the answer is that no U.S. travel is necessary.
2. Do I really need a U.S. LLC, or is Wise Business enough on its own?
For many sellers, Wise Business alone is genuinely enough. It gives you a real U.S. routing number that state DOR portals and marketplaces accept, it costs nothing to maintain, and it can be opened in under a week. The cases where you need a U.S. LLC and a true bank account at Mercury or Relay are: you are routinely holding more than $50,000 in U.S. dollars and want the full $250,000 of FDIC insurance attached to your business as the depositor of record; you operate in states whose DOR portals reject non-bank routing numbers, which historically includes Texas, Ohio and at times New York; you want a debit card, virtual cards, sophisticated accounting integrations, or access to U.S. business credit; or you anticipate selling your business and a buyer will want the operating account in a U.S. entity. For most active sellers, running both accounts in parallel is the optimum — Wise as the workhorse, Mercury as the institutional backstop.
3. What is the difference between Wise Business and a true U.S. bank account like Mercury?
Legally, a great deal; operationally, less than you might think. Wise Business is a regulated electronic money institution that holds your USD funds in a pooled omnibus account at its partner bank, Community Federal Savings Bank. Wise issues you sub-account routing and account numbers that originate inside that pool. State DOR portals see a valid Federal Reserve routing number (026073150) and process your payment without scrutiny of the underlying structure. Mercury, by contrast, holds your deposits at FDIC-insured partner banks (Choice Financial Group, routing 091311229, and Evolve Bank & Trust) in your LLC’s legal name as the depositor of record, so the standard $250,000 FDIC limit attaches directly to your business. Practically, both pay state tax authorities the same way, on the same timeline, at the same cost. The differences become material in three scenarios: insolvency of the platform, where Mercury holders are direct FDIC-insured depositors and Wise holders are creditors of Wise; balances above the FDIC limit; and certain state portals that flag non-bank routing numbers.
4. How long does the whole process take from start to finish?
It depends on which pathway you take. The Wise-only pathway is three to seven business days end to end — application, identity verification, account activation, and DOR portal registration can all be completed inside a single working week. The LLC-plus-Mercury pathway runs ten to fourteen business days for a clean application: roughly one to two days to form the LLC in Wyoming or Delaware, one day to obtain the EIN over the phone from the IRS International Section, four to seven days for Mercury underwriting, and one or two days to register the account credentials with each state DOR portal. Where applications slow down is invariably the source-of-funds documentation at Mercury, which can stretch the timeline to three or four weeks if the initial application leaves the compliance team with unanswered questions. The fix is to over-document up front: state your business model, marketplaces, expected volumes and source of capital in specific numerical terms in the initial application rather than waiting for follow-up requests.
5. Why does my state Department of Revenue portal reject my Wise routing number?
A handful of state portals — Texas, Ohio and New York have been the most consistent offenders over the past two years — maintain internal validation logic that flags routing numbers associated with non-bank electronic money institutions like Wise and Payoneer. The rejection is technically a portal-level decision rather than a state-policy prohibition: there is no state statute saying “thou shalt not pay sales tax from a Wise account.” The portal simply checks the routing number against an internal list and declines if the underlying institution is classified as non-traditional. The workaround is straightforward. Open a Mercury or Relay account, which uses partner-bank routing numbers (091311229 for Choice Financial Group) that pass every state portal’s validation without issue, and route your payments for the rejecting states through that account. Continue using Wise for the states that accept it. This is precisely why I recommend most active clients hold both accounts.
6. What documents do I need to apply for an EIN from outside the United States?
If you are calling the IRS International Section directly on +1 (267) 941-1099, the documents you need on the desk in front of you are: your LLC’s legal name exactly as it appears on the articles of organization; your LLC’s registered agent address in Delaware or Wyoming; your full legal name and date of birth as they appear on your passport; your country of residence; your passport number or other national identification number; and a one to two-sentence description of the business activity (for example, “online retail of consumer electronics via Amazon FBA in the United States”). You do not need to mail Form SS-4 in advance — the agent completes it during the call based on your verbal responses. You will receive the EIN verbally at the end of the call, typically within twenty minutes. The IRS will subsequently mail Form CP 575 (the official EIN confirmation letter) to your registered agent address within four to six weeks; that letter is what Mercury, Relay and traditional banks will want to see at the application stage. Our companion guide on applying for a U.S. EIN as a foreign entity walks through the call script in detail.
7. Is FDIC insurance important for an ecommerce seller, and what does it actually cover?
FDIC insurance covers the failure of the bank holding your deposits, up to $250,000 per depositor, per insured bank, per ownership category. It does not cover fraud, marketplace clawbacks, chargebacks, hacked accounts or business losses. For an ecommerce seller, the FDIC question reduces to a single judgement: how much cash do I typically hold in this account, and how would I cope if the institution failed? For sellers running balances of $10,000 to $30,000 — the typical month-end working capital for a small or mid-sized FBA business — the FDIC question is largely academic, because the underlying partner bank failure risk is very low and even a Wise insolvency is a manageable creditor claim. For sellers routinely holding $50,000 or more, particularly where that cash includes sales tax collected on behalf of states (which the states will still expect to be remitted regardless of what your bank did), the legal protection of a true Mercury or Relay account in your LLC’s name becomes meaningful. The $250,000 limit applies per ownership category, so you can stack a business account and a personal account at the same bank for combined coverage of $500,000.
8. What if I'm rejected by Mercury or Relay — what are my options?
Rejection by Mercury or Relay is uncommon for cleanly-documented foreign-founder applications but does happen, usually for one of four reasons: insufficient source-of-funds documentation; an LLC name mismatch between formation documents and the EIN; a product category that the platform’s compliance team flags as elevated risk (cannabis-adjacent products, certain firearms accessories, regulated digital assets); or an applicant whose passport or proof of address fails identity verification. The first three are fixable. Re-apply with stronger source-of-funds detail (specific amounts, dates, sources), correct any name mismatch by ordering a certified amendment from your registered agent, and reconsider the product category description if you are operating in a borderline space. If Mercury still says no, Relay is the natural second attempt — its compliance lens is slightly different and applicants rejected by one are often accepted by the other. Beyond those two, Novo and Bluevine are the next tier. Brex is generally the strictest of the major fintech banks for foreign founders as of 2026, so it is not where I would go after a Mercury rejection. As a last resort, a traditional bank account opened in-person at a Chase or Bank of America branch on a B-1 visa remains a viable fallback for sellers who are travelling to the United States anyway.
The Bottom Line
The U.S. banking access problem is no longer a real obstacle for international ecommerce sellers. The infrastructure has matured. The procedures are repeatable. A seller in Cape Town, London, Berlin, Bengaluru or Sydney can be operational with a U.S. routing number inside a week using Wise Business, and with a full FDIC-insured LLC bank account at Mercury or Relay inside two to three weeks. The combination of the two — Wise as the operational workhorse, Mercury as the institutional backstop for any state DOR portal that gets fussy and any balance above $50,000 — is the configuration I recommend to virtually every cross-border client and it costs almost nothing to maintain.
What still trips sellers up is not the technology. It is the sequencing — applying for Mercury before forming the LLC, calling the IRS during U.S. holidays, copy-pasting routing numbers without re-checking each digit, or assuming that a USD account at a home-country bank can originate ACH. Get the sequence right, document your source of funds in specific terms, and run both accounts in parallel, and the U.S. side of your business stops being a compliance project and goes back to being a growth project. If you would rather hand the entire setup — LLC, EIN, Wise, Mercury, every state DOR portal registration — to a team that has done it hundreds of times, that is exactly what our done-for-you engagement is built for.
