Side-by-side
| Dimension | Mercury | Wise Business |
|---|---|---|
| Provider type | US chartered bank partner (FDIC via partner banks) | Money services provider (custodial) |
| Non-resident approval rate | ~70% | ~95% |
| Monthly fee | $0 | $0 ($31 one-time setup) |
| FDIC coverage | Yes, via Choice Financial / Evolve partners | No (custodial through partner banks) |
| Treasury yield | Yes, T-bill sweep up to $5M FDIC | No |
| Multi-currency | USD only | USD plus 50+ currencies |
| Approval time | 1-7 business days | Same day to 3 days |
| Best fit | Primary US bank for clean country profiles | Fallback or multi-currency operations |
When Mercury wins
- Your country profile clears Mercury underwriting (UK, EU, India, UAE, Brazil tiers)
- You want FDIC-insured deposits and a chartered-bank relationship
- You hold idle balances and want T-bill yield via Treasury sweep
- You need API access, up to 50 debit cards with spend controls, or Stripe-native ACH
- You want the broadest US business banking feature set
When Wise Business wins
- Mercury rejected your application, or your country profile is in tightened-review tier (Pakistan, Bangladesh, Vietnam, Indonesia, Nigeria)
- You bill international clients in EUR, GBP, AUD, or other currencies and want to hold those balances directly
- You need same-day account opening rather than 1 to 7 business days
- You prefer cheaper FX (Wise spread is 0.4-0.6%, Mercury converts at transaction time)
FDIC vs custodial: what the difference means
Mercury is not itself a bank. Mercury accounts are held at chartered partner banks like Choice Financial and Evolve. Your deposits are FDIC-insured up to standard limits, attributed to your Mercury account name. Mercury Treasury sweep extends coverage up to $5M via partner-bank diversification.
Wise Business is a money services provider. Funds are held at partner institutions under safeguarding rules but not directly FDIC-insured to your name. In the event of Wise insolvency, recovery depends on safeguarding regulations rather than FDIC. This is acceptable for operating balances but not ideal for large idle deposits.
Multi-currency operations
Wise wins decisively here. You can hold USD, EUR, GBP, AUD, CAD, and 50+ currencies in one account with local IBANs and routing numbers in major markets. EUR clients pay your Wise EUR account at their local IBAN, no SWIFT fees, no FX conversion until you choose.
Mercury is USD only. Incoming EUR or GBP wires convert to USD at arrival, with FX spread applied at conversion time. For founders billing global clients in their local currency, Wise reduces FX costs meaningfully.
Application requirements
- Wyoming Articles of Organization plus EIN letter (same for both)
- Passport scan (Mercury prefers 12+ months remaining; Wise accepts shorter)
- Business description (Mercury reviews carefully; Wise is more permissive on this)
- Anticipated transaction volume
- Wise also accepts proof of address from your home country
Common pattern: open both
Many founders we serve open Mercury as primary and Wise as backup. Mercury handles US ACH operations, Stripe payouts, and Treasury yield. Wise handles non-USD client invoicing and serves as the safety net if Mercury later restricts or reviews the account.
Each application uses the same LLC and EIN. There is no penalty for holding accounts at both.