Ally Bank vs. American Express
Ally Bank and American Express both advertise 3.10% APY on their high-yield savings accounts. With identical rates, your choice comes down to other factors like mobile app quality, branch access, or customer service reputation.
The Bottom Line
On a $10,000 balance, Ally Bank's Savings Account and American Express's High Yield Savings Account earn the same: about $310 in a year each.
The Ally Bank and American Express savings accounts are very similar. Choose Ally Bank if BBB rating matters to you.
| Metric | Ally BankSavings Account Oct 5, 2026 | American ExpressHigh Yield Savings Account Oct 5, 2026 |
|---|---|---|
| APY | 3.10% | 3.10% |
Earns in a year | $5,000+$155 $10,000+$310 $25,000+$775 | $5,000+$155 $10,000+$310 $25,000+$775 |
Min. Deposit | $0 | $0 |
Snapshot view. Rates subject to change. | ||
| Features | FDIC InsuredNo MinimumsGreat iOS AppGreat Android AppZelle® SupportedDaily CompoundingRate Changes Often | FDIC InsuredNo MinimumsGreat iOS AppGreat Android AppZelle® SupportedDaily CompoundingRate Changes Often |
Market Reality Check
Both of these institutions offer rates below the top 10 savings and money market accounts we track. Those institutions all pay at least 4.36% APY.
Comparison Analysis
Comparing Ally Bank vs. American Express
Executive Summary
Ally Bank held $156.6 billion at June 30, 2026, while American Express held $171.6 billion at the same date. Both banks offer the same standard rate of 3.1% on savings accounts at a balance of $10,000. Ally Bank paid 3.03% on average on savings and money market deposits. American Express paid 3.21% on average on savings and money market deposits.
The analysis is based on current Banksparency database records
* This content is provided for informational purposes only; always verify details with the provider.
Why Ally Bank?
No distinct advantages found vs American Express.
Why American Express?
- Higher rated Android app (4.8 vs 4.4)
Key Feature Differences
Better Mobile App Experience
American ExpressAmerican Express offers an iOS app rated 4.9 (vs. 4.7) and Android app rated 4.8 (vs. 4.4)
Shared Benefits
Non-sponsored link to official site
Non-sponsored link to official site
Top Market Contenders
Ally Bank vs. American Express Savings Calculator
Both accounts earn exactly the same amount.
Ally Bank
Savings Account
Savings Breakdown
- Interest Earned+$310.00(3.0%)
- Total Contributions$0
- Initial Deposit$10,000
Projected Balance
$10,310.00
American Express
High Yield Savings Account
Savings Breakdown
- Interest Earned+$310.00(3.0%)
- Total Contributions$0
- Initial Deposit$10,000
Projected Balance
$10,310.00
The Banksparency Savings Calculator provides estimated savings growth based on user input and our latest data.
Still at a large branch bank?
A typical branch-bank savings rate is 0.05% APY. On a $10,000 balance, the gap to these two banks is at least $305 a year in interest.
Both Ally Bank and American Express advertise far more than that typical branch-bank rate.
| Feature | Ally Bank | American Express |
|---|---|---|
| APY | 3.10% Observed: 10/5/2026 0.10%90-day change | 3.10% Observed: 10/5/2026 Stable over 90 days |
| Product Name | Savings Account | High Yield Savings Account |
| Minimum Deposit | $0 | $0 |
| Min. Balance for APY | $0 | $0 |
| Monthly Fee | $0 | $0 |
| Compound Frequency | Daily | Daily |
| Branches | None | None |
| Physical Branches | 1 (UT) | 1 (UT) |
| Direct Deposit Req. | None | None |
| Checking Bundle | No | No |
| Mobile Apps | ||
| FDIC or NCUA Insured | YesVerify FDIC | YesVerify FDIC |
| Zelle® Support | Available Limit: $5,000/dayBenchmark for online Zelle; high limits. | Available Requires Amex Rewards Checking; not available for standalone HYSA. |
| BBB Rating | A+ | F |
| Next Steps | Visit SiteVerify at Ally Bank Non-sponsored link to official site | Visit SiteVerify at American Express Non-sponsored link to official site |
What each bank pays on deposits
An advertised rate tells you what a new savings account earns today. It cannot tell you how the bank has priced the savings and money market deposits it already holds, over time. This section shows that. The figure is computed from the interest expense and deposit balances that every bank files with the FDIC in the same form. That is what makes it comparable across banks and across quarters.
Ally Bank
The two figures answer different questions, so they sit side by side and are not combined.
In Q2 2026, Ally Bank paid a higher average rate on savings and money market deposits than 94% of banks that reported a figure (FDIC call report). The all-bank median was 1.45%.
Each figure is that bank's own charter-level average across its whole deposit book, so the two are shown one after the other and are not a ranking.
American Express
The two figures answer different questions, so they sit side by side and are not combined.
In Q2 2026, American Express paid a higher average rate on savings and money market deposits than 96% of banks that reported a figure (FDIC call report). The all-bank median was 1.45%.
How to read these figures
What the average covers. It is an average across the whole bank, taken from its own quarterly FDIC call report. It covers savings accounts and money market deposit accounts, personal and business, at every balance tier. It also covers accounts that were opened years ago and keep the rate of those years. The FDIC line does not separate consumer accounts.
The second figure. The scale row also shows the average across all interest-bearing deposits: savings, interest checking, money market accounts, CDs, personal and business. That figure covers the whole deposit book. The two are shown separately and are not combined.
What the advertised rate covers. It is the rate that this bank advertises now for a new savings account. Banksparency records it from the bank's website on the date shown beside it.
Why the two differ. They measure different things, so this page shows them side by side and keeps them apart. An advertised rate applies to one account, opened now, at today's price. The average also includes older savings balances at the rates of earlier years, money market balances that were priced in a different rate environment, and business accounts. An average below an advertised rate is the usual result of that arithmetic. On its own it is not evidence about the account that you would open.
What the average is useful for. The bank files the data itself, under reporting instructions that are the same for every filer, and the same computation runs for every bank on this site. That makes it comparable in a way that an advertisement is not. Two things on this page read it: the percentile, which shows where the quarter sits among all filers, and the chart, which shows the direction the figure has moved across quarters.
What the average cannot tell you. It cannot tell you the rate that you would earn. No single customer earns the average. For your rate, read the advertised rate above and the rate tables on this page, each with the date it was observed.
What to do next. Use the advertised rate to work out what a new account earns. Use the chart to see how the quarterly average has moved against the all-bank median. Then compare the advertised rate against the current rates on the savings-rate tables before you open an account.
Definitions: Call Report · Rate Paid on Deposits · Interest-Bearing Deposits · Front Book and Back Book · Deposit Rate Percentile
Average annualized rates paid on savings and money market deposits, and on all interest-bearing deposits, quarterly. The FDIC line for savings includes money market deposit accounts and business savings deposits and does not separate consumer accounts. Source: FDIC call report data, as reported; it may be amended. The percentile compares all FDIC filers, count-weighted. A missing quarter is suppressed, never interpolated. The percentile counts the banks that paid strictly less on savings and money market deposits, one vote per bank, among the banks that reported a figure for the quarter.
CD rates, term by term
Ally Bank lists CDs on Banksparency at 3, 6, 9, 11, 12, 18, 36 and 60 months. American Express lists CDs at 10, 11, 12, 14, 18, 22, 24, 36, 48 and 60 months. Each row below is one term, with the best rate each bank advertises for it.
| Term | Ally Bank APY | American Express APY | FDIC average (Sep 2026) |
|---|---|---|---|
| 12 months | 4.15% APYNo minimum | 3.65% APYNo minimum | 1.73% |
| 3 months | 2.80% APYNo minimum | Not listed here | 1.13% |
| 6 months | 3.85% APYNo minimum | Not listed here | 1.41% |
| 9 months | 4.00% APYNo minimum | Not listed here | |
| 10 months | Not listed here | 4.40% APYNo minimum | |
| 11 months | 2.80% APYNo minimum | 3.65% APYNo minimum | 1.73%12-month average |
| 14 months | Not listed here | 3.65% APYNo minimum | |
| 18 months | 4.25% APYNo minimum | 3.65% APYNo minimum | |
| 22 months | Not listed here | 4.40% APYNo minimum | |
| 24 months | Not listed here | 3.65% APYNo minimum | 1.61% |
| 36 months | 4.00% APYNo minimum | 2.25% APYNo minimum | 1.36% |
| 48 months | Not listed here | 2.25% APYNo minimum | 1.28% |
| 60 months | 4.10% APYNo minimum | 3.00% APYNo minimum | 1.38% |
Money market accounts
A money market account holds a savings balance and adds check or debit card access. The figure each bank advertises is its best APY across every active tier, so the sentence under it says which balance earns that rate.
Ally Bank
Money Market Account
3.10% APY
No minimum. As observed Oct 5, 2026.
American Express
No money market account listed here.
The FDIC national money market average was 0.63% in Sep 2026.
Compare Savings Rates Over Time
Historical Performance
| Metric | Ally Bank | American Express |
|---|---|---|
| Savings Account | High Yield Savings Account | |
Current APY | 3.10% | 3.10% |
Trend | Stable | Stable |
Speed of change | -0.03 | -0.05 |
Days Since Change | 10 | 12 |
12-Month High | 3.40% | 3.50% |
12-Month Low | 3.00% | 3.00% |
Changes per month | 0.41 | 0.49 |
Steadiness | 0.019 | 0.030 |
How to read these metrics(Click to expand)
Trends and speed
- Trend: The general direction of the rate over the analyzed period. Useful for seeing whether a bank is raising its rate or letting it slip.
- Speed of change: How fast the rate moves. A high positive number means they raise rates quickly. A reading of 0.10 is a tenth of a percentage point each month.
- Changes per month: How often the rate moves. A high number means it changes constantly; a low number means it holds.
Risk & Range
- High/Low: The absolute ceiling and floor of the rate during the 364-day window.
- Steadiness: How far the rate swings around its average. A lower score means a steadier, more predictable rate.
- Days Since Change: A high number, for example above 90, means the rate rarely moves. A low number means it changed recently.
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