American Express High Yield Savings has no minimum balance and no minimum opening deposit. The full APY (~4.00%) applies to any balance. There are no monthly fees regardless of balance.
AmEx HYSA Balance Requirements
| Requirement | Amount |
|---|---|
| Minimum balance | $0 |
| Opening deposit | $0 |
| Balance to earn APY | $0.01+ |
| Monthly fee | $0 |
| Fee for low balance | None |
AmEx HYSA vs Competitors: Minimums
| Institution | Min Balance | Monthly Fee | APY |
|---|---|---|---|
| AmEx HYSA | $0 | $0 | ~4.00% |
| Marcus HYSA | $0 | $0 | ~4.10% |
| Ally HYSA | $0 | $0 | ~4.00% |
| Synchrony HYSA | $0 | $0 | ~4.50% |
| SoFi HYSA | $0 | $0 | ~4.20%* |
All major HYSA providers in 2026 have eliminated minimum balance requirements. AmEx is consistent with the market.
Related Guides
- AmEx HYSA savings rate 2026 — ~4.00% APY, interest calculator
- AmEx savings customer service 2026 — 1-800-446-6307, 24/7
- AmEx HYSA vs Marcus 2026 — Goldman Sachs comparison
- AmEx HYSA vs Ally 2026 — savings comparison
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