Mercury vs Relay vs Wise Business: Which US Account Should a Non-Resident Choose?

Once you know how to open a US business account as a non-resident, the harder question is which one. Mercury, Relay, and Wise Business all approve foreign-owned US entities, but they are built for different jobs. This is a decision guide, not a step-by-step walkthrough — if you need the opening process itself, see our companion article on opening a US bank account as a non-resident. Here we compare the three on the criteria that actually change your monthly costs and cash flow, then give you a framework to choose.

The three contenders at a glance

All three are fintech platforms (not traditional banks) that have built onboarding flows specifically able to verify non-resident owners of US LLCs and C-Corps. Where they differ is in their core design philosophy:

• Mercury — USD business banking aimed at startups and digital companies, known for a polished dashboard, virtual cards, and a broad integration ecosystem.
• Relay — USD business banking oriented around budgeting and bookkeeping, with support for multiple sub-accounts and bookkeeper access built in.
• Wise Business — a multi-currency account first and foremost, designed to hold many currencies and move money across borders cheaply.

Comparison table

The table below is a qualitative comparison. Pricing, limits, and country eligibility change often, so we deliberately describe fees in relative terms rather than quoting specific numbers — always confirm the current details on each provider's official pricing page before you commit.

Eligibility for specific countries can change, and each provider maintains its own restricted-country list. If you are unsure whether your residency is supported, check directly with the provider before forming your entity around a particular account.

Criterion-by-criterion: how to read the differences

Fees

The headline monthly fee is rarely where the real cost sits. For most non-resident founders, the meaningful costs are outbound wire fees and currency conversion. A platform with a $0 monthly fee but expensive FX can cost more than a paid plan with cheap transfers if you move money internationally each month. Map your actual transaction pattern — how often you wire, in which currencies — before comparing sticker prices.

Multi-currency support

This is the cleanest dividing line. If you invoice clients in EUR, GBP, or other currencies and want to hold those balances rather than convert immediately, Wise Business is purpose-built for it. Mercury and Relay are excellent USD homes but are not designed as multi-currency wallets, so heavy non-USD flows usually push you toward Wise — often as a second account rather than a replacement.

Who each one suits

Mercury fits founders who live inside their banking dashboard and want integrations, virtual cards, and a startup-friendly feature set. Relay fits founders who run their business on a Profit First or envelope-budgeting style and want a bookkeeper to log in cleanly. Wise Business fits the genuinely international operator whose pain is cross-border money movement, not US-domestic banking features.

Non-resident friendliness

All three rank well here compared with traditional banks, which is precisely why they dominate this niche. The practical differences are at the margins: documentation requested, speed of review, and which residencies sit on each provider's restricted list. None of them require you to fly to the US, which is the single biggest reason non-residents choose fintech over Chase or Bank of America.

Which account should you choose? A decision framework

Rather than asking “which is best,” answer the question that matches your situation:

• Do you operate almost entirely in USD and want the smoothest startup banking experience? Start with Mercury.
• Is disciplined cash management and clean bookkeeping your priority? Lean toward Relay and its multi-account structure.
• Do you bill or pay in multiple currencies and feel FX costs the most? Make Wise Business central, optionally alongside a USD account.
• Do you want redundancy in case a provider freezes or limits your account? Open two complementary accounts — a common, low-effort safeguard.

A frequent and sensible end state for a non-resident founder is a primary USD operating account (Mercury or Relay) plus a Wise Business account for international receivables and payouts. The two roles rarely conflict, and the cost of running both is usually modest relative to the resilience it buys.

What comes before the choice

Whichever account wins your comparison, the prerequisites are the same: a registered US entity and an EIN. If you do not yet have those, the banking decision is premature — see our guides on forming a US LLC as a non-resident and obtaining an EIN without an SSN. With the entity and EIN in hand, opening any of these three accounts becomes a matter of uploading documents and waiting a few business days.

Frequently asked questions