Affirm vs. American Express
Affirm's Affirm Money Account pays 3.20% APY while American Express's High Yield Savings Account pays 3.00% APY.
See how they compare on rate stability, mobile app ratings, and more below.
The Bottom Line
Who pays more interest on $10,000? Affirm pays $20 more than American Express annually ($320 vs $300).
Choose Affirm if getting the best rate matters most, or BBB rating matters to you. Choose American Express if you want Zelle for quick transfers.
| Metric | AffirmAffirm Money Account Sep 2, 2026 | American ExpressHigh Yield Savings Account Sep 5, 2026 |
|---|---|---|
| APY | 3.20% | 3.00% |
Earns in a year | $5,000+$160 $10,000+$320 $25,000+$800 | $5,000+$150 $10,000+$300 $25,000+$750 |
Min. Deposit | $0 | $0 |
Snapshot view. Rates subject to change. | ||
Terms | While Affirm is not a bank, it is FDIC-insured through partner Cross River Bank. | - |
| Features | FDIC InsuredNo MinimumsGreat iOS AppGreat Android AppDaily 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 4.01% APY.
Comparison Analysis
Comparing Affirm vs. American Express
Executive Summary
Affirm offers the Affirm Money Account with a competitive APY of 3.20%, making it the higher-yield option compared to American Express's High Yield Savings Account, which has an APY of 3.00%. Both accounts require no minimum deposit and do not charge maintenance fees, making them accessible for savers. Notably, Affirm's account does not require direct deposit or bundling, enhancing its appeal for simplicity. Both accounts are online-only and FDIC-insured, but American Express's account is only available in Utah. Overall, Affirm's account stands out for its higher APY.
The analysis is based on current Banksparency database records
* This content is provided for informational purposes only; always verify details with the provider.
Why Affirm?
- Higher potential APY (3.20% vs 3.00%) on all balances
Why American Express?
- Fast transfers via Zelle®
Key Feature Differences
Better Returns at $10,000
AffirmAffirm's Affirm Money Account earns more on smaller deposits (approx. $320 vs $300/yr).
Better Returns at $25,000
AffirmAffirm's Affirm Money Account pulls ahead with larger amounts (approx. $800 vs $750/yr).
Better for Simplicity
AffirmAffirm's Affirm Money Account offers 3.20% APY with no bundling, direct deposit requirement or caps.
Shared Benefits
Over a 1-year period, Affirm's Affirm Money Account pays $20 more interest on a $10,000 balance than American Express's High Yield Savings Account.
*This calculation assumes current rates remain consistent for 1 year and does not include temporary bonuses.
Non-sponsored link to official site
Non-sponsored link to official site
Top Market Contenders
Affirm vs. American Express Savings Calculator
You earn $20 more with Affirm 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.
Affirm
Affirm Money Account
Savings Breakdown
- Interest Earned+$320.00(3.1%)
- Total Contributions$0
- Initial Deposit$10,000
Projected Balance
$10,320.00
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
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 $295 a year in interest.
Both Affirm and American Express advertise far more than that typical branch-bank rate.
| Feature | Affirm | American Express |
|---|---|---|
| APY | 3.20% Observed: 9/2/2026 Stable over 90 days | 3.00% Observed: 9/5/2026 0.10%90-day change |
| Product Name | Affirm Money Account | High Yield Savings Account |
| 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 | Not reported | 1 (UT) |
| Direct Deposit Req. | None | None |
| Checking Bundle | No | No |
| Mobile Apps | ||
| FDIC or NCUA Insured | YesVerify FDIC | YesVerify FDIC |
| Zelle® Support | Not Supported | Available Requires Amex Rewards Checking; not available for standalone HYSA. |
| BBB Rating | A+ | F |
| Important Notes | While Affirm is not a bank, it is FDIC-insured through partner Cross River Bank. | - |
| Next Steps | Visit SiteVerify at Affirm Non-sponsored link to official site | Visit SiteVerify at American Express Non-sponsored link to official site |
Compare Savings Rates Over Time
Historical Performance
| Metric | Affirm | American Express |
|---|---|---|
| Affirm Money Account | High Yield Savings Account | |
Current APY | 3.20% | 3.00% |
Trend | Stable | Stable |
Speed of change | -0.06 | -0.05 |
Days Since Change | 242 | 57 |
12-Month High | 3.85% | 3.50% |
12-Month Low | 3.20% | 3.00% |
Changes per month | 0.33 | 0.41 |
Steadiness | 0.055 | 0.029 |
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 362-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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High Rates (With Checking Bundle)
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More Comparisons
Compare Affirm's APY of 3.20% with other banks
| Bank Pair | Competitor APY | Min Deposit |
|---|---|---|
| Affirm vs Ally Bank | 3.00% | $0 |
| Affirm vs Axos Bank | 4.21% | $0 |
| Affirm vs Barclays | 3.65% | $0 |
| Affirm vs Capital One | 3.50% | $0 |
| Affirm vs Chime | 3.75% | $0 |
| Affirm vs CIT Bank | 3.75% | $100 |
| Affirm vs EverBank | 3.90% | $0 |
| Affirm vs Marcus by Goldman Sachs | 3.40% | $0 |
| Affirm vs Newtek Bank | 4.20% | $100 |
| Affirm vs Openbank | 3.80% | $500 |
| Affirm vs Pibank | 4.10% | $0 |
| Affirm vs SoFi Bank | 4.00% | $0 |
| Affirm vs Synchrony Bank | 3.30% | $0 |
| Affirm vs Varo Bank | 3.75% | $0 |
| Affirm vs Wealthfront | 3.95% | $0 |