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Banking Guide

Mercury vs Relay Guide

Mercury and Relay are the two most popular US banks for non-resident LLC owners. Both charge $0 monthly fees and open accounts remotely. Both require your EIN first. ein.so files Form SS-4 for $49.

Last updated: June 2, 2026

mercury vs relay for non-resident LLC banking

Mercury and Relay are the two most popular US banks for non-resident LLC owners. Both charge $0 monthly fees and open accounts fully remotely. Both require your EIN before you apply. The IRS charges $0 for an EIN, but the online tool needs an SSN. ein.so files Form SS-4 by fax using your passport number and returns your EIN. Standard costs $49 (4-7 business days). Express costs $97 (2-3 business days).

Mercury and Relay dominate banking for non-resident founders because both accept LLC owners without an SSN and both open accounts online from any country. Mercury targets startups, SaaS companies, and tech founders. Relay targets e-commerce sellers, agencies, and operators who want multiple accounts and clear expense tracking. The eligibility rule is the same for both: no EIN means no account. This guide compares Mercury and Relay on price, speed, non-resident support, and included features, then shows you how to get the EIN that unlocks either one. Get your EIN through ein.so for $49 first.

FactorMercuryRelay
Monthly fee$0$0
Minimum deposit$0$0
Remote opening for non-residentsYesYes
EIN requiredYesYes
Best forStartups, SaaS, techE-commerce, agencies
Multiple sub-accountsLimitedYes

The Core Comparison

How Do Mercury and Relay Compare for a Non-Resident LLC?

Mercury and Relay both open $0-fee business checking accounts remotely for non-resident LLC owners who hold an EIN. Mercury leans toward startups and software workflows. Relay leans toward e-commerce and multi-account cash management. Neither requires an SSN, and neither requires a US visit.

The practical differences sit in features, not eligibility. Both banks verify your LLC against your EIN confirmation, so the document quality you submit matters more than which bank you pick. Use the table below to match a bank to your business model.

FeatureMercuryRelay
Monthly fee$0$0
Minimum balance$0$0
Account opening time1-3 business days1-3 business days
Non-resident acceptedYesYes
Virtual and physical cardsYesYes
Multiple accounts for budgetingLimitedYes (up to 20 checking accounts)
Treasury / yield featuresYesLimited
Software integrationsStrong (startup stack)Strong (accounting tools)
Wire and ACH supportYesYes

Confirm current fees and features on each bank's official site before applying, since banking terms change. Both require the same first step: a valid EIN. Start with EIN for a bank account.

Why the EIN Comes First

Why Do Mercury and Relay Require an EIN First?

Mercury and Relay require an EIN because federal banking rules force every US business bank to verify a company's tax identity before opening an account. The EIN is your LLC's federal tax ID. Without it, neither bank can complete identity verification, so the application stops.

The EIN is a 9-digit number the IRS issues on Form SS-4. The IRS charges $0 for it. Non-residents do not need an SSN or ITIN. You enter your passport number on Line 7b instead. The catch is that the IRS online tool requires an SSN, which blocks most non-residents. The fax method solves this.

1

File Form SS-4 With the IRS

ein.so completes Form SS-4 with your LLC name, your address, and your passport number on Line 7b. We fax it to the IRS at 855-215-1627. No SSN or ITIN is required for non-residents.
2

Receive Your EIN Confirmation

The IRS returns your EIN assignment letter, the CP 575. Standard delivery is 4-7 business days; Express is 2-3 business days. This letter is the document Mercury and Relay ask for.
3

Apply to Mercury or Relay

Submit your EIN confirmation, LLC formation documents, operating agreement, and passport. Both banks review most complete applications within 1-3 business days.
4

Fund and Operate

Once approved, fund the account by ACH or wire. You receive US account and routing numbers for domestic transfers and card payments.

See the full EIN application process and how to get an EIN without an SSN.

Pricing

How Much Does It Cost to Bank With Mercury or Relay?

Mercury and Relay both charge $0 in monthly fees and require $0 minimum deposit. The real cost for a non-resident is getting the EIN that both banks demand first. The IRS charges $0 for the EIN, and ein.so charges $49 Standard or $97 Express to file Form SS-4 for you.

Many founders waste days trying the IRS online tool, which rejects applicants without an SSN. Others lose money on international phone calls to the IRS during US business hours. ein.so removes both problems with a flat fax-filing fee and no SSN requirement.

Cost itemAmountNotes
Mercury monthly fee$0Confirm current terms on Mercury's site
Relay monthly fee$0Confirm current terms on Relay's site
IRS EIN fee$0The IRS never charges for an EIN
ein.so Standard EIN filing$494-7 business days
ein.so Express EIN filing$972-3 business days
ein.so ITIN service (if needed)$197 / $297Standard / Express

You do not need an ITIN to open Mercury or Relay or to get an EIN. The ITIN matters only for certain personal US tax filings. See EIN cost and EIN processing time for full breakdowns.

Non-Resident Banking Options

Which Banks Accept Non-Resident LLC Owners?

Mercury, Relay, Novo, and Wise accept non-resident LLC owners and open accounts remotely with an EIN and a passport. Traditional banks such as Chase and Bank of America usually require an in-person branch visit, which makes them impractical for founders abroad.

The table below ranks the most common options for non-residents. Mercury and Relay sit at the top because both combine $0 monthly fees, remote onboarding, and fast review. Each bank still requires your EIN before you start.

BankRemote openingMonthly feeBest for
MercuryYes$0Startups, SaaS, tech
RelayYes$0E-commerce, agencies
NovoYes$0Freelancers
WiseYesLowInternational transfers
ChaseNoVariesBranch access

Documents both Mercury and Relay request

  • EIN confirmation letter (CP 575) or Letter 147C
  • LLC formation documents (Articles of Organization)
  • Operating agreement for your LLC
  • Government-issued ID such as a passport
  • A short business description and expected transaction volume

Application Steps

How Do You Open a Mercury or Relay Account as a Non-Resident?

You open a Mercury or Relay account by getting your EIN first, then submitting your formation documents and passport through the bank's online application. Both banks review most complete applications in 1-3 business days. The EIN confirmation is the document that drives approval.

Get Your EIN

You cannot open Mercury or Relay without an EIN. ein.so files Form SS-4 and returns your CP 575 in 4-7 business days ($49) or 2-3 business days ($97). Apply now.

Match Your LLC Details

Use the exact LLC name and address that appear on your EIN confirmation. Any mismatch between your formation documents and your EIN letter triggers a rejection.

Choose the Right Bank

Pick Mercury for startup and SaaS workflows. Pick Relay for e-commerce and multi-account cash management. Both accept non-residents and charge $0 monthly.

Submit and Fund

Upload your EIN confirmation, operating agreement, and passport. After approval, fund the account by ACH or wire and start using your US account and routing numbers.

Related reading: EIN for non-residents, EIN for a bank account, and the SS-4 form guide.

Tax and Compliance

What Tax Duties Come With a US LLC Bank Account?

Opening a Mercury or Relay account does not create a tax bill, but owning a foreign-held US LLC creates annual filing duties. A foreign-owned single-member US LLC files Form 5472 with a pro-forma Form 1120 each year. The penalty for not filing Form 5472 is $25,000.

Form 5472 + 1120

A foreign-owned single-member US LLC files Form 5472 with a pro-forma Form 1120 annually. This is an information return, not always a tax bill. The non-filing penalty is $25,000.

BOI Report to FinCEN

Most US LLCs report beneficial ownership to FinCEN. Review the BOI filing rules to avoid penalties. The BOI report is separate from your bank application.

Keep Records Clean

Banks and the IRS both rely on consistent LLC details. Use one legal name and one address across your EIN, your bank, and your filings to avoid flagged accounts.

Work With a CPA

ein.so files your EIN and does not give tax advice. Confirm your specific US tax obligations with a CPA familiar with non-resident LLCs before your filing deadlines.

Do not skip these filings

  1. File Form 5472 with a pro-forma Form 1120 every year for a foreign-owned single-member LLC. The penalty is $25,000.
  2. File your BOI report with FinCEN if your LLC is required to report.
  3. Confirm all tax specifics with a CPA. ein.so does not provide tax advice.

Next Steps

How Do You Get Started With Mercury or Relay?

  1. Get your EIN — both banks require it; ein.so files Form SS-4 for $49 Standard or $97 Express
  2. Open a US bank account — Mercury and Relay accept non-residents remotely with $0 monthly fees
  3. File your BOI report — required for most LLCs at fincen.gov/boi
  4. File Form 5472 — annually for foreign-owned LLCs ($25,000 penalty for non-filing)
  5. Review the basicshow to get an EIN, EIN without SSN, and the SS-4 form guide

Compare more options: Mercury account setup | Relay account setup | best bank for non-resident LLC | EIN processing time | EIN cost.

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Frequently Asked Questions

Do I need an EIN for Mercury or Relay?

Yes. Every US business bank account requires an EIN, including Mercury and Relay. The bank uses your EIN to verify your LLC with the IRS and to comply with federal banking rules. The IRS charges $0 for an EIN. ein.so files Form SS-4 by fax for $49 (Standard, 4-7 business days) or $97 (Express, 2-3 business days).

Can non-residents open a Mercury or Relay account?

Yes. Both Mercury and Relay accept non-resident LLC owners and open accounts fully remotely. You do not need to visit the United States or hold an SSN. You provide your EIN confirmation, LLC formation documents, an operating agreement, and your passport. Traditional banks like Chase and Bank of America usually require an in-person branch visit instead.

Is Mercury or Relay better for a non-resident LLC?

Both are strong. Mercury suits startups, tech founders, and SaaS companies that want virtual cards, treasury features, and software integrations. Relay suits e-commerce sellers and agencies that want multiple accounts and built-in expense tracking. Both charge $0 monthly fees and accept non-residents remotely. Your EIN opens either account, so the choice is about features, not eligibility.

What documents do Mercury and Relay require?

Both banks require four core items: your EIN confirmation (CP 575 or Letter 147C), your LLC formation documents such as Articles of Organization, your operating agreement, and a government-issued ID like a passport. Some applications also ask for a business description and an estimated transaction volume. Missing the EIN confirmation is the most common reason applications stall.

How long does Mercury or Relay account opening take?

Mercury and Relay both review most applications in 1-3 business days once you submit complete documents. Approval depends on a clean EIN confirmation and consistent LLC details. The slower step is usually getting the EIN itself, which takes 4-7 business days through ein.so Standard or 2-3 business days through Express. Get the EIN first, then apply to the bank.

Is there a minimum deposit for Mercury or Relay?

No. Both Mercury and Relay open business checking accounts with no minimum opening deposit and no minimum balance requirement. You can fund the account after approval by ACH transfer or wire. Traditional banks differ and may require an opening deposit. Confirm current terms on each bank's site, since banking policies change.

Can I get an EIN without an SSN before opening Mercury or Relay?

Yes. Non-residents do not need an SSN or ITIN to get an EIN. You enter your passport number on Form SS-4 Line 7b instead. The IRS online EIN tool requires an SSN, so non-residents must use the fax method. ein.so faxes Form SS-4 to the IRS for you and returns your EIN so you can open Mercury or Relay.

Does opening Mercury or Relay create US tax obligations?

The bank account itself does not create a tax bill, but owning a foreign-held US LLC creates filing duties. A foreign-owned single-member US LLC files Form 5472 with a pro-forma Form 1120 each year. The penalty for not filing Form 5472 is $25,000. Most LLCs also file a BOI report. Confirm your specific obligations with a CPA. ein.so does not give tax advice.

What if my Mercury or Relay application is rejected?

Most rejections trace back to mismatched details: an LLC name that differs from the EIN confirmation, an unverified address, or an incomplete business description. Fix the underlying document and reapply, or apply to the other bank. Because both accept non-residents, a rejection at one rarely means rejection at both. A clean EIN confirmation from ein.so prevents the most common cause.

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