American Express Business Checking
No monthly fee + 1.30% APY on first $500k + Membership Rewards, online-only, no cash deposits
Mercury Business Banking
Startup / multi-user digital ops — $0 monthly fee, free USD wires & ACH, no cash deposits, 0% checking APY
Costs & Fees
| Metric | American Express Business Checking | Mercury Business Banking |
|---|---|---|
| Monthly maintenance | $0 — unconditional | $0 on deposit accounts. Optional Plus ~$29.90–$35/mo; Pro $299/mo (software subscriptions, not DDA maintenance) |
| Fee waiver | N/A — no monthly fee to waive | N/A — core banking is $0 unconditional; Plus/Pro are optional paid software tiers |
| Transaction fees | No excess-item fees; effectively unlimited electronic and paper items (operational limits may apply unpublished) | No per-item fees on ordinary ACH, wires, checks. Unlimited USD ACH, domestic wires, USD intl wires (SHA), RTP (Column). |
| Overdraft/NSF | $0 NSF/stop pay/returns; overdrafting not a product — items exceeding balance generally refused | $0 overdraft fee; overdrafts not permitted — items may be rejected. Persistent negative ≥30 days may trigger closure. |
| ATM fees | Allpoint + MoneyPass in-network $0 Amex fee; out-of-network owner surcharge (no rebate). Daily ATM cash limit $1,000. | Mercury does not charge own ATM withdrawal fee (U.S.). Operator surcharge possible; business ATM rebate not confirmed on current help page. 3% FX on non-USD ATM cash. |
| Wire/ACH | Incoming domestic wire $0. Outgoing domestic wire $25. Standard ACH $0. Same-day ACH $10 (cutoff 2:45 PM ET). Outgoing international wires not offered. | Incoming domestic: $0. Outgoing domestic: $0. Incoming intl: $0 from Mercury. Outgoing intl USD SHA: $0; USD OUR: $15; non-USD: 1% FX. ACH in/out: $0. Same-day ACH $0 if before 12pm PT and <$1M. |
Interest & Yields
| Metric | American Express Business Checking | Mercury Business Banking |
|---|---|---|
| Checking APY | 1.30% APY on first $500,000 per account (variable; no activity gate) | 0.00% — non-interest-bearing (Column Exhibit 1, Aug 14, 2026) |
| Savings APY | N/A — single checking product | 0.00% APY on business savings (0.001% rate; Column Exhibit 1). Not a high-yield account. |
| FDIC coverage | Standard FDIC $250,000 per depositor, per ownership category at AENB (accounts aggregate) | Standard FDIC $250,000 per depositor per ownership category at Choice or Column |
Features & Access
| Metric | American Express Business Checking | Mercury Business Banking |
|---|---|---|
| Branch/ATM network | No branches. 70,000+ Allpoint + MoneyPass ATMs for withdrawals only (no cash deposits). | No branches. Mastercard chip ATMs for cash withdrawal only — $1,000/card/business day, $3,000 company-wide. No cash deposits. |
| Mobile app | Business Blueprint ~4.5/5 Google Play (~1.6k reviews); Amex app ~4.8–4.9 iOS cited | Trustpilot 4.0 (~2,761 reviews); Google Play ~4.6 (~1.76k); App Store ~4.9 (CA listing) |
| Virtual cards | Not marketed for business debit product | Included — physical + virtual debit with freeze, merchant lock, spend limits |
| Opening deposit | $0 | $0 |
| Eligibility | Corporation, LLC, partnership, unincorporated association, sole prop. 25%+ owners must be U.S./territory residents with SSN/ITIN. | U.S.-formed LLC, corp, partnership typical. EIN letter required. Trusts refused on business onboarding. International founders OK if U.S. entity and not in prohibited residence country. |
Pros & Cons
American Express Business Checking
Pros
- $0 monthly fee, $0 opening deposit, $0 excess-item fee unconditionally
- 1.30% APY on first $500,000 per account with no balance or activity gate
- Membership Rewards on debit spend plus Redeem-for-Deposits into checking
- 24/7 specialist support — differentiator vs most online business banks
- 70,000+ Allpoint/MoneyPass ATM withdrawals at $0 Amex fee; up to 10 accounts at $0 extra
Cons
- Cash deposits not supported at all — need another bank for cash businesses
- No outgoing international wires; USD Fedwire domestic/territories only
- APY stops at $500k/account; FDIC remains $250k with no ICS/sweep
- Thin card/user toolkit vs Relay/Bluevine-style employee and virtual cards
- Beneficial owners must be U.S./territory residents with SSN/ITIN — blocks international founders
Mercury Business Banking
Pros
- $0 monthly, $0 min, $0 overdraft fee on deposit accounts
- $0 domestic wires, $0 USD intl wires (SHA), $0 ACH, $0 same-day ACH under $1M/12pm PT
- Sweep FDIC marketed up to $5M; RTP/FedNow-style rails $0 on Column accounts
- Strong multi-user, virtual cards, QBO/Xero/NetSuite feeds, bill pay, invoicing on free tier
- IO charge card 1.5% cashback, $0 annual fee (Patriot Bank; separate product)
Cons
- Business checking/savings APY 0.00% — yield requires Treasury ≥$250k (SIPC, not FDIC)
- No cash deposits at all; ATM cash-out capped $1k/card, $3k company
- Fintech + partner-bank stack; documented closure/freeze complaint pattern
- 3% card FX and 1% non-USD wire; Plus/Pro needed for advanced AP/AR automation
- Treasury wrap fee 0.15%–0.60%; Choice consent order and bank migration uncertainty
Verdict
American Express Business Checking
American Express Business Checking is a single-tier online account issued directly by American Express National Bank — not a fintech wrapper. As of September 2026: $0 monthly fee, 1.30% APY on the first $500,000 per account (up to 10 accounts), standard FDIC $250k with no sweep. Strengths are unconditional $0 fees, decent APY without activity gates, MR on debit spend, QuickBooks, Zelle, and 24/7 support. Weaknesses are no cash deposits, no outgoing international wires, APY/FDIC gap above $250k, and limited multi-user debit tooling. Best for digital firms already in the Amex ecosystem; pair with a branch bank if the business handles cash.
Mercury Business Banking
Mercury is a fintech front end with deposits at Choice Financial Group and Column N.A. (FDIC), optional sweep to $5M. Core checking and savings have $0 monthly fee, $0 minimums, $0 overdraft fee, and $0 USD ACH/wires/RTP (Column). Checking and savings APY are 0.00%. Yield is separate Mercury Treasury (Apex/SIPC, 0.15–0.60% wrap) unlocked at $250k. Cash deposits not offered. Differentiator is startup-grade ops: multi-user permissions, virtual cards, QBO/Xero/NetSuite, bill pay, invoicing on free tier. Weak on 0% checking, no cash, partner-bank risk, and closure complaints. Do not treat Treasury yield as checking APY or Mercury as an FDIC member.