Mercury vs Relay
Side-by-side comparison across 13 dimensions. Data is approximate and for informational purposes only.
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| Dimension | Mercury | Relay |
|---|---|---|
| Type | Banking platform (partner banks) | Banking platform (Thread Bank) |
| Monthly Fee | $0 | $0 |
| Currencies | USD only | USD only |
| FDIC Insured | Yes (up to $5M through partner banks' sweep networks)* | Yes (up to $3M via sweep) |
| Local Bank Details | US | US |
| International Transfers | Wire ($5 domestic, 1% intl in foreign currency, $0 intl in USD) | Wire (fees apply) |
| Currency Conversion | 1% for wires, up to 3% for card FX | Bank rates (opaque) |
| Interest on Deposits | Yes (savings account) | No |
| Debit Card | Virtual + physical | Virtual + physical |
| Team Access | Roles & permissions | Roles, profit-first categories |
| Accounting Integrations | QuickBooks, Xero, NetSuite | QuickBooks, Xero, FreshBooks |
| API Access | Yes (robust) | Yes |
| Non-Resident Access | US entity required, increased scrutiny | US entity required |
Key Notes
Mercury
Best for US-focused startups. Strong API, FDIC up to $5M through partner banks' sweep networks. USD-only limitation makes it costly for multi-currency operations. *Mercury is a fintech company, not an FDIC-insured bank. Banking services provided through Choice Financial Group and Column N.A., Members FDIC.
Relay
Best for profit-first budgeting. Category-based accounts help separate operating, tax, and profit funds. USD-only, no interest on deposits.
Frequently Asked Questions
How We Compared
We reviewed fee structures, currency support, FDIC coverage, transfer capabilities, and non-resident access policies from each provider's published documentation.
Disclaimer: All data on this page is approximate and for informational purposes only. Pricing, features, and availability change frequently. This is not legal, tax, or financial advice. Verify all figures directly with each provider before making decisions. Data reflects conditions as of early 2026.
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