American Express vs. SoFi Bank
American Express's High Yield Savings Account pays 3.00% APY while SoFi Bank's SoFi Savings pays 3.80% APY.
Note: SoFi Bank requires a checking account.
See how they compare on rate stability, mobile app ratings, and more below.
The Bottom Line
Who pays more interest on $10,000? SoFi Bank pays $45 more than American Express annually ($345 vs $300).
Choose American Express if you want a no-strings-attached account. Choose SoFi Bank if getting the best rate matters most, or BBB rating matters to you.
Important Considerations
SoFi Bank requires a checking account to unlock its top savings rate, while American Express offers its savings account standalone.
| Metric | American ExpressHigh Yield Savings Account Aug 21, 2026 | SoFi BankSoFi Savings Aug 21, 2026 |
|---|---|---|
| APY | 3.00% | 3.10% - 3.80% |
Est. Earnings | $5,000+$150 $10,000+$300 $25,000+$750 | $5,000+$173 $10,000+$345 $25,000+$863 |
Min Deposit | $0 | $0 |
Snapshot view. Rates subject to change. | ||
Terms | - | Limited offer: The stated APY includes a temporary 0.70% APY boost for 6 months. It is available with a direct deposit of regular income, or a $10/month subscription. See terms at SoFi Bank. The savings account comes bundled with an interest-bearing checking account. |
| Features | FDIC InsuredNo MinimumsGreat iOS AppZelle® SupportedDaily CompoundingRate Changes Often | FDIC InsuredNo MinimumsGreat iOS AppZelle® SupportedDirect Deposit ReqChecking BundleDaily 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 4.01% APY.
Comparison Analysis
Comparing American Express vs. SoFi Bank
Executive Summary
A detailed summary for this comparison is being prepared. Check back soon.
The analysis is based on current Banksparency database records
* This content is provided for informational purposes only; always verify details with the provider.
Why American Express?
- ✓No checking account or direct deposit required
Why SoFi Bank?
- ✓Earn a $50 bonus with $1,000+ in direct deposits, or $300 with $5,000+.
- ✓Higher potential APY (3.80% vs 3.00%) on all balances
Key Feature Differences
Better Returns at $10,000
SoFi BankSoFi Bank's SoFi Savings earns more on smaller deposits (approx. $345 vs $300/yr).
Better Returns at $25,000
SoFi BankSoFi Bank's SoFi Savings pulls ahead with larger amounts (approx. $863 vs $750/yr).
Best for All-in-One Banking
SoFi BankSoFi Bank's SoFi Savings pays a superior APY for customers who also open a checking account.
Shared Benefits
Over a 1-year period (factoring in a 6-month promo), SoFi Bank's SoFi Savings pays $45 more interest on a $10,000 balance than American Express's High Yield Savings Account.
*SoFi Bank's calculation includes their 6-month introductory promotional rate and subsequent standard rate.
Non-sponsored link to official site
Non-sponsored link to official site
Top Market Contenders
American Express vs. SoFi Bank Savings Calculator
You earn $44.9 more with SoFi Bank than American Express 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+$300.00(2.9%)
- Total Contributions$0
- Initial Deposit$10,000
Projected Balance
$10,300.00
SoFi Bank
SoFi Savings
Savings Breakdown
- Interest Earned+$344.90(3.3%)
- Total Contributions$0
- Initial Deposit$10,000
Projected Balance
$10,344.90
The Banksparency Savings Calculator provides estimated savings growth based on user input and our latest data.
Still banking with Chase, Bank of America, or Wells Fargo?
On a $10,000 balance, you're missing out on at least $299 per year in interest.
Both American Express and SoFi Bank dramatically outperform the typical 0.01% APY at traditional big banks.
| Feature | American Express | SoFi Bank |
|---|---|---|
| APY | 3.00% Verified: 8/21/2026 ↘︎ 0.10%90d Change | 3.80% Range: 3.10% - 3.80% Verified: 8/21/2026 - |
| Product Name | High Yield Savings Account | SoFi Savings |
| Minimum Deposit | $0 | $0 |
| Min. Balance for APY | $0 | $0 |
| Monthly Fee | $0 | $0 |
| Compound Frequency | Daily | Daily |
| In-Branch Access | No | No |
| Account Type | Online Only | Online Only |
| Physical Branches | None | N/A |
| Direct Deposit Req. | None | Required |
| Checking Bundle | No | Yes |
| Mobile Apps | ||
| FDIC or NCUA Insured | YesVerify FDIC | YesVerify FDIC |
| Zelle® Support | Available Requires Amex Rewards Checking; not available for standalone HYSA. | Available Native support added in 2024 for banking members. |
| BBB Rating | F | A+ |
| Important Notes | - | Limited offer: The stated APY includes a temporary 0.70% APY boost for 6 months. It is available with a direct deposit of regular income, or a $10/month subscription. See terms at SoFi Bank. The savings account comes bundled with an interest-bearing checking account. |
| Next Steps | Visit SiteVerify at American Express Non-sponsored link to official site | Visit SiteVerify at SoFi Bank Non-sponsored link to official site |
📈 Compare Savings Rates Over Time
Historical Performance
| Metric | American Express | SoFi Bank |
|---|---|---|
| High Yield Savings Account | SoFi Savings | |
Current APY | 3.00% | 3.80% |
Trend | Stable | Stable |
Velocity (bps/mo) | -4.9 | -4.9 |
Days Since Change | 42 | 85 |
12-Month High | 3.50% | 4.50% |
12-Month Low | 3.00% | 3.80% |
Adjustments / Mo | 0.41 | 0.33 |
Volatility Score | 0.029 | 0.058 |
How to read these metrics(Click to expand)
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