American Express vs. Betterment
Compare rates, requirements, and features side-by-side to find the best option for you.
| Metric | American ExpressHigh Yield Savings Account Jan 12, 2026 | BettermentCash Reserve Jan 12, 2026 |
|---|---|---|
| APY | 3.30% | 3.25% |
Est. Earnings | $5,000+$165 $10,000+$330 $25,000+$825 | $5,000+$163 $10,000+$325 $25,000+$813 |
Min Deposit | $0 | $10 |
Snapshot view. Rates subject to change. | ||
| Features | FDIC InsuredNo MinimumsGreat iOS AppZelle® Supported | FDIC InsuredLow MinimumsGreat iOS AppGreat Android App |
Market Reality Check
Both of these banks offer rates below the current top tier. The best rates we track are currently above 4.20% APY.
Comparison Analysis
Comparing American Express vs. Betterment
As of American Express offers an APY of 3.30% for its High Yield Savings Account, with a minimum balance of $0, compared to Betterment's 3.25% APY for its Cash Reserve account, with a minimum balance of $0.
American Express pays $5 more than Betterment on a $10,000 balance after one year. American Express pays $330, while Betterment pays $325 - an APY advantage for American Express.
Why American Express?
- ✓Fast transfers via Zelle®
Why Betterment?
- ✓Higher rated Android app (4.7 vs 3.6)
Shared Benefits
Over a 1-year period, American Express's High Yield Savings Account pays $5 more interest on a $10,000 balance than Betterment's Cash Reserve.
*This calculation assumes current rates remain consistent for 1 year and does not include temporary bonuses.
Executive Summary as of
American Express offers a High Yield Savings Account with a competitive APY of 3.30%, making it the highest-yielding option between the two banks. In comparison, Betterment's Cash Reserve provides a slightly lower APY of 3.25%. Both accounts are online-only, have no maintenance fees, and require no minimum balance, although Betterment has a minimum deposit of $10. American Express's account does not require direct deposit, providing flexibility for customers.
The analysis is based on current Banksparency database records
* This content is provided for informational purposes only; always verify details with the provider.
Non-sponsored link to official site
Non-sponsored link to official site
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American Express vs. Betterment Savings Calculator
You earn $5 more with American Express than Betterment on a $10,000 initial deposit for 1 year*.
*This calculation assumes that APYs remain unchanged for 1 year, and takes into account known promo rate periods, but does not factor in bonuses. You can see how often these banks have changed their rates in the Compare Savings Rates Over Time section below.
American Express
High Yield Savings Account
Savings Breakdown
- Interest Earned+$330.00(3.2%)
- Total Contributions$0
- Initial Deposit$10,000
Projected Balance
$10,330.00
Betterment
Cash Reserve
Savings Breakdown
- Interest Earned+$325.00(3.1%)
- Total Contributions$0
- Initial Deposit$10,000
Projected Balance
$10,325.00
The Banksparency Savings Calculator provides estimated savings growth based on user input and our latest data.
| Feature | American Express | Betterment |
|---|---|---|
| APY | 3.30% Verified: 1/12/2026 ↘︎ 0.20%90d Change | 3.25% Verified: 1/12/2026 ↘︎ 0.50%90d Change |
| Product Name | High Yield Savings Account | Cash Reserve |
| Minimum Deposit | $0 | $10 |
| Min. Balance for APY | $0 | $0 |
| Monthly Fee | $0 | $0 |
| Branch Access | None | None |
| Account Type | Online Only | Online Only |
| Direct Deposit Req. | None | None |
| Checking Bundle | No | No |
| Mobile Apps | iOS4.9 Android3.6 | iOS4.8 Android4.7 |
| Zelle® Support | Available Requires Amex Rewards Checking; not available for standalone HYSA. | Not Supported |
| BBB Rating | F | A- |
| Next Steps | Visit SiteVerify at American Express Non-sponsored link to official site | Visit SiteVerify at Betterment Non-sponsored link to official site |
📈 Compare Savings Rates Over Time
Historical Performance
| Metric | American Express | Betterment |
|---|---|---|
| High Yield Savings Account | Cash Reserve | |
Current APY | 3.30% | 3.25% |
Trend | Stable | Stable |
Velocity (bps/mo) | -3.5 | -6.3 |
Days Since Change | 13 | 30 |
12-Month High | 3.80% | 4.00% |
12-Month Low | 3.30% | 3.25% |
Adjustments / Mo | 0.42 | 0.25 |
Volatility Score | 0.036 | 0.071 |
How to read these metrics(Click to expand)
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High Rates (With Checking Bundle)
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