Best business bank accounts for startups operating internationally

Managing multiple currency balances

Multi-currency balances reduce conversion frequency, but they don't eliminate FX costs because you still pay a margin or spread when you convert, and you still face timing risk if the rate moves between invoice and payment.

Altitude holds USD and EUR balances as USDC and EURC, and you get dedicated US routing numbers and SEPA IBANs. You can convert between USDC and EURC with no Altitude fee added, though the executed rate depends on market conditions at the moment of conversion and Altitude doesn't guarantee zero spread or slippage. View the supported countries guide for more on what works where, including account details, SWIFT, cards, and rewards.

Cross-border payment capabilities and transfer limits

The payment rails that matter for international startups are ACH, SEPA, SWIFT, Faster Payments, SPEI, Pix, Bre-B, and stablecoin transfers. Settlement timing depends on the rail.

• ACH takes up to three business days, while SEPA settles in one business day.
• SWIFT takes up to five business days, making it the slowest of the supported rails.
• Stablecoin transfers settle in minutes because the network doesn't observe banking cut-off times.

Altitude supports all of these rails from one account, with fees shown before you confirm the payment.

Local payout routes (Faster Payments, SPEI, Pix, Bre-B) are enabled per workspace. Request access from support and payments route to your Inbox for approval. Check the help center for current figures.

Avoiding account rejection for startups

Eligibility is the first filter, and it determines whether you can open an account at all. A provider can have the best feature set in the world, but if it won't open an account for your entity, none of those features matter.

• Mercury requires a US or US-territory registered company with existing or planned US operations.
• Brex documents US incorporation, an EIN, US operations, and a physical US address.
• Altitude opens accounts for eligible businesses from 200+ countries with no US entity required, though product availability varies by country.
• Airwallex serves non-US entities in supported regions.

For Altitude, business-incorporation eligibility, USD account eligibility, EUR account eligibility, payment-destination access, card-issuance eligibility, card merchant-spending access, and rewards eligibility are seven separate scopes, and qualifying for one doesn't guarantee access to another.

Comparing real FX and processing costs

Headline fees are one part of the all-in cost. Intermediary banks can deduct charges on SWIFT transfers even when the sender covers known fees under the OUR convention. FX margins vary by corridor and provider.

Altitude's per-rail fees are published in full in the Transparent fee breakdown section below. Sending, intermediary, and recipient banks may still charge on bank rails.

Ideal startup profiles for Mercury

Mercury serves US or US-territory registered companies with existing or planned US operations and offers strong US domestic features including ACH, domestic wire, check deposits, and integrations with US accounting and payroll tools. Foreign founders can qualify by forming a US entity and obtaining an EIN. Altitude accepts non-US entities from 200+ countries, supports the same ACH and wire rails Mercury offers, and adds SEPA and stablecoin transfers from one account.

Requirements for international founders

Mercury accepts applications from founders living outside the US, but the business must be registered in the US or a US territory and have existing or planned US operations.

Applicants need an EIN, company formation documents, and a verifiable principal business address, which can be in the US or another country. P.O. boxes, registered-agent addresses, and virtual addresses aren't accepted as the principal business address. Mercury also restricts applications from founders living in certain countries. Check Mercury's eligibility requirements and prohibited countries list before applying.

What you pay for transfers

Mercury's pricing page lists $0 for USD international wires, a 1% currency exchange fee on non-USD international wires, an optional $15 flat fee for the OUR option, and a 3% fee on non-USD card transactions (as checked October 2026).

Ideal startup profiles for Brex

Brex serves US-incorporated companies with an EIN, US operations, and a physical US address. It offers strong US domestic features including ACH, domestic wire, corporate cards, and integrations with US accounting and expense tools. Foreign founders can qualify by forming a US entity and meeting Brex's address and operations requirements. Altitude accepts non-US entities from 200+ countries, supports ACH and wire rails, and adds SEPA and stablecoin transfers from one account.

Requirements for international founders

Brex requires US incorporation, an EIN, documented US operations, and a physical US address. P.O. boxes and virtual addresses aren't accepted. Founders living outside the US can qualify if the business meets all four requirements.

Checklist for account eligibility

1. Entity incorporation country: Confirm the provider accepts businesses incorporated in your country. Mercury and Brex require US incorporation. Altitude accepts eligible businesses from 200+ countries. Airwallex supports businesses registered in approximately 69 eligible countries and territories.
2. Operating address: A physical business address is required. Virtual office addresses aren't accepted.
3. UBO disclosure: Altitude requires disclosure of anyone owning or controlling 25% or more of the business. Mercury and Brex have similar requirements.
4. Business category: Altitude prohibits certain categories and requires enhanced review for others. Review prohibited categories before applying.

Country exceptions and product availability

Altitude opens accounts for eligible businesses from 200+ countries, with product availability varying by country. Of the 223 countries and territories on Altitude's public list, 203 have every function and 20 have at least one exception: no USD account details (15 countries), no EUR account details (4 countries), no SWIFT (1 country), or no cards (7 countries). All 20 support stablecoin accounts. Bank rail minimums and batch transfer minimums are documented in the help center. Stablecoin minimums are also documented in the help center.

Global startup account requirements

Altitude onboards businesses only. Individuals aren't onboarded. UBO disclosure is required for anyone owning or controlling 25% or more. Business verification runs in two stages: an initial submission and a follow-up review. Altitude completes most reviews within two business days, as described in the help center. If follow-up documents are needed, Altitude requests them by email.

Countries Altitude pays to

Altitude supports payments to 200+ countries, with product availability varying by country. Local payout routes include Faster Payments (GBP), SPEI (MXN), Pix (BRL), and Bre-B or local bank transfer (COP). These routes don't create local-currency balances and work through individual payment creation only, not through bill pay, batch payments, or invoices, and funding is USDC from a USD account. Each linked guide covers the route-specific requirements.

Altitude's eligibility criteria

Altitude accepts eligible businesses from 200+ countries with no US entity required. Every business goes through a verification review. Most complete within two business days. UBO disclosure is required for anyone owning or controlling 25% or more. P.O. boxes and virtual office addresses aren't accepted as operating addresses. Card issuance and merchant spending have separate geographic restrictions documented in the supported countries list.

Breakdown of costs and FX fees

Altitude adds no fee to USDC to EURC conversion through Jupiter, though the executed rate and any Jupiter slippage apply, so the final amount depends on market conditions at execution. For cross-border payments, you fix either "You send" or "Recipient receives," and Altitude shows the effective rate and both amounts, refreshing the quote every 30 seconds. The payment records the agreed source amount, recipient amount, and rate, and executes as a fixed-output transfer. A meaningful share of Altitude's payment volume moves on weekends, because stablecoin transfers don't observe banking cut-off times.

Is Altitude right for your business?

Altitude is right for businesses that need USD or EUR accounts without a US or EU entity, pay contractors across many countries, or get paid from the US and Europe. Altitude isn't right for businesses that need FDIC insurance on operating balances (Altitude's balances are held in fully reserved stablecoins, not as bank deposits), a credit line, physical cards, or a native mobile app (none are available).

Payment rails and route minimums

Altitude supports ACH, US domestic wire, SEPA, SWIFT, Faster Payments (GBP), SPEI (MXN), Pix (BRL), Bre-B or local bank transfer (COP), and stablecoin transfers. Check the help center for current rail minimums. Local payout routes (Faster Payments, SPEI, Pix, Bre-B) don't create local-currency balances and work through individual payment creation only.

Qualifying for an Altitude account

Business verification runs in two stages: an initial submission and a follow-up. Most reviews complete within two business days. If follow-up documents are needed, Altitude requests them by email. UBO disclosure is required for anyone owning or controlling 25% or more. P.O. boxes and virtual office addresses aren't accepted as operating addresses. Altitude onboards businesses only and individuals aren't onboarded.

Transparent fee breakdown

The table below shows Altitude's platform fees per rail. Sending, intermediary, and recipient banks may still charge on bank rails.

Non-USD card purchases carry a 1% FX fee. SWIFT conditions: the sender covers known fees under the OUR convention, but some intermediary banks can still deduct charges, so full-value receipt isn't guaranteed.

Founder fit and requirements

Airwallex serves businesses registered in approximately 69 eligible countries and territories. According to Airwallex's pricing page, SWIFT transfers are available to 200+ countries and local transfers to 120+ countries. Eligibility, product access, and compliance requirements vary by your company's country of incorporation, so confirm your jurisdiction is supported before applying.

Airwallex global coverage and constraints

Airwallex offers multi-currency accounts, local payment rails in supported markets, and cross-border payments via SWIFT and local networks. Constraints for borderless founders evaluating stablecoin workflows: Airwallex supports stablecoin receiving via API with enablement requirements, but there's no equivalent native stablecoin operating account where balances are held as USDC or EURC and controlled by your business. Altitude holds USD and EUR balances as USDC and EURC in an account your business controls, with approval rules your team sets applied automatically.

Operational eligibility criteria

Airwallex eligibility varies by region and entity type. Confirm current requirements on Airwallex's official eligibility page before applying, because regional availability and product access change.

Breakdown of account and FX fees

Airwallex publishes FX margins and account fees on its pricing page, but specific figures vary by corridor and account type. Altitude's fees are published in full in the Transparent fee breakdown section. If you need corridor-specific pricing before money moves, request a quote from Airwallex or test with a small transfer.

Identify your primary payment corridors

List the corridors you pay and get paid in. Match them to provider-supported rails. If you pay contractors in Brazil, you need Pix. If you pay suppliers in Germany, you need SEPA. If you get paid from the US, you need ACH or wire. If you need weekend settlement, you need stablecoin transfers, because bank rails observe banking hours and stablecoin networks don't.

How to calculate all-in payment fees

All-in cost equals provider fee plus FX margin plus intermediary bank charges plus recipient bank fees. Altitude's per-rail fees are listed in the Transparent fee breakdown section. Note that intermediary banks can still deduct charges on SWIFT even under the OUR convention. Mercury's pricing page lists $0 for USD international wires, a 1% currency exchange fee on non-USD international wires, an optional $15 flat fee for the OUR option, and a 3% fee on non-USD card transactions (as checked October 2026). Airwallex publishes FX margins that vary by corridor, so request corridor-specific quotes or test with small transfers before committing.

Verify eligibility before applying

Check entity requirements, operating address requirements, and business category restrictions before applying. Altitude's public supported-countries list shows what works where: account details, SWIFT, cards, and rewards. Mercury requires a US or US-territory company. Brex requires US incorporation, an EIN, US operations, and a physical US address. Airwallex eligibility varies by region and entity type.

Validate connectivity with a small transfer

Open the account alongside your incumbent, not as an immediate replacement. Prove it on live flows in parallel, then migrate workflows. Position Altitude as the account that handles what your incumbent can't: cross-border settlement, weekend payments on stablecoin transfers, and USD or EUR accounts without a US entity. Keep your existing infrastructure in place until you've established confidence with the new provider.

See how Altitude handles contractor and supplier payments across borders. Book a demo.

Can I open a USD business account without a US entity?

Yes, with Altitude or Airwallex. Altitude accepts eligible businesses from 200+ countries with no US entity required, though product availability varies by country. Mercury and Brex require US incorporation or US operations.

What's the difference between a business bank account and a fintech platform?

A bank account holds deposits at a chartered bank and may carry FDIC insurance, while a fintech platform like Altitude holds balances in fully reserved stablecoins, backed one to one by the issuer's reserves, controlled by your business and not lent out.

How long does it take to open a business bank account for startups?

Altitude completes most business verification reviews within two business days and requests any follow-up documents by email.

Do I need separate accounts for each currency?

Not with Altitude. USD and EUR balances are held in USDC and EURC in one account, with dedicated US routing numbers and SEPA IBANs. Local payout routes like Pix and SPEI don't create local-currency balances.

What happens if my business account gets closed?

With Altitude, balances are held in fully reserved stablecoins, controlled by the business and not lent out by Altitude. Stablecoin issuers can freeze addresses under legal orders, and regulated partners can suspend services independently.