High-Yield Savings Account Comparison

Affirm vs. American Express

Comparing Affirm and American Express for high-yield savings: 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.

Analysis by Aviel Fahl
Updated August 6, 2026

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.

Comparison of Affirm vs American Express savings accounts
Metric

Affirm

Affirm Money Account

Aug 6, 2026

American Express

High Yield Savings Account

Aug 6, 2026
APY3.20%3.00%
Est. Earnings
$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 banks offer rates below the current top tier. The best rates we track are currently above 4.10% APY.

See Top Rates

Comparison Analysis

Comparing Affirm vs. American Express

Updated: Aug 6, 2026

Executive Summary

Affirm offers the Affirm Money Account, which provides a competitive 3.20% APY with no minimum deposit, maintenance fees, or direct deposit requirements, making it a strong choice for savers. In contrast, American Express's High Yield Savings Account has a slightly lower APY of 3.00%. Both accounts are online-only and FDIC-insured, ensuring safety for deposits. While Affirm's account stands out for its higher yield, American Express provides a solid alternative for those seeking a reliable savings option.

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
Affirm

Affirm's Affirm Money Account earns more on smaller deposits (approx. $320 vs $300/yr).

Better Returns at $25,000
Affirm

Affirm's Affirm Money Account pulls ahead with larger amounts (approx. $800 vs $750/yr).

Best for Simplicity
Affirm

Affirm's Affirm Money Account offers 3.20% APY with no bundling, direct deposit requirement or caps.

Shared Benefits

Both offer monthly maintenance-free account options Both banks have options with $0 opening deposit Available Nationwide Available to New & Existing Customers
The Bottom Line on APY (Interest Only)

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.

American ExpressAffirm
Verify At
Affirm

Non-sponsored link to official site

Verify At
American Express

Non-sponsored link to official site

Top Market Contenders

Affirm vs. American Express Savings Calculator

Calculations based on current APY for Affirm Money Account and High Yield Savings Account
$
$

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

3.20% APY

Savings Breakdown

  • Interest Earned
    +$320.00(3.1%)
  • Total Contributions
    $0
  • Initial Deposit
    $10,000

Projected Balance

$10,320.00

Effective APY
3.20%

American Express

High Yield Savings Account

3.00% APY

Savings Breakdown

  • Interest Earned
    +$300.00(2.9%)
  • Total Contributions
    $0
  • Initial Deposit
    $10,000

Projected Balance

$10,300.00

Effective APY
3.00%

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 Affirm and American Express dramatically outperform the typical 0.01% APY at traditional big banks.

Big banks currently pay 0.01% APY on savings vs 3.00%+ here
FeatureAffirmAmerican Express
APY
3.20%
Verified: 8/6/2026
Stable (90d)
3.00%
Verified: 8/6/2026
↘︎ 0.20%90d Change
Product NameAffirm Money AccountHigh Yield Savings Account
Minimum Deposit$0$0
Min. Balance for APY$0$0
Monthly Fee$0$0
Compound FrequencyDailyDaily
Branch AccessNoneNone
Account Type
Online Only
Online Only
Physical BranchesNoneNone
Direct Deposit Req.NoneNone
Checking BundleNoNo
Mobile Apps
iOS4.9
Android4.8
iOS4.9
Android4.9
FDIC Insured
Zelle® Support
Not Supported
Available
Requires Amex Rewards Checking; not available for standalone HYSA.
BBB RatingA+F
Important NotesWhile Affirm is not a bank, it is FDIC-insured through partner Cross River Bank.-
Next Steps
Visit Site

Non-sponsored link to official site

Visit Site

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📈 Compare Savings Rates Over Time

Historical Performance

Last 12 Months Analysis
MetricAffirmAmerican Express
Affirm Money AccountHigh Yield Savings Account
Current APY
3.20%3.00%
Trend
Stable Stable
Velocity (bps/mo)
-6.2-4.7
Days Since Change
21228
12-Month High
3.85%3.50%
12-Month Low
3.20%3.00%
Adjustments / Mo
0.330.41
Volatility Score
0.0760.049
How to read these metrics(Click to expand)

Trends & Velocity

  • Trend: The general direction of the rate over the analyzed period. Useful for spotting if a bank is currently aggressive or pulling back.
  • Velocity (bps/mo): Speed of change. A high positive number means they raise rates quickly. 10 bps = 0.10%.
  • Adjustments/Mo: "Twitchiness." High frequency means the rate changes constantly; low frequency means it's stable.

Risk & Range

  • High/Low: The absolute ceiling and floor of the rate during the 365-day window.
  • Volatility Score: Lower is better for predictability. It indicates how wildly the rate swings relative to its average.
  • Days Since Change: If this number is high (e.g., >90), the rate is very sticky. If low, it changed recently.

More Comparisons

Compare Affirm's APY of 3.20% with other banks
Compare American Express' APY of 3.00% with other banks
Bank PairCompetitor APYMin Deposit
American Express vs Ally Bank3.00%$0
American Express vs Axos Bank4.21%$0
American Express vs Bank of America0.01%$100
American Express vs Barclays3.65%$0
American Express vs Bask Bank4.10%$0
American Express vs Betterment4.00%$10
American Express vs BMO Alto3.00%$0
American Express vs Bread Savings3.95%$100
American Express vs BrioDirect3.75%$5,000
American Express vs Capital One3.00%$0
American Express vs Charles Schwab Bank0.15%$0
American Express vs Chase Bank0.01%$0
American Express vs Chime3.75%$0
American Express vs CIT Bank3.75%$100
American Express vs Citibank3.00%$0
American Express vs Citizens Access™2.80%$0.01
American Express vs Climate First Bank4.01%$50
American Express vs Discover Bank3.30%$0
American Express vs E*TRADE from Morgan Stanley3.50%$0
American Express vs Elevault4.34%$0
American Express vs EverBank3.90%$0
American Express vs Fitness Bank4.05%$100
American Express vs FNBO Direct3.00%$1
American Express vs Forbright Bank4.15%$0
American Express vs GO2bank4.50%$0
American Express vs Ivy Bank3.85%$2,500
American Express vs LendingClub4.00%$0
American Express vs Marcus by Goldman Sachs3.40%$0
American Express vs Neighbors Bank4.10%$0
American Express vs Newtek Bank4.20%$0.01
American Express vs Openbank3.80%$500
American Express vs Peak Bank4.01%$100
American Express vs Pibank4.10%$0
American Express vs PNC3.15%$0
American Express vs Santander Bank0.01%$25
American Express vs SoFi Bank3.80%$0
American Express vs Synchrony Bank3.30%$0
American Express vs TD Bank2.00%$0
American Express vs UFB Direct3.46%$5000
American Express vs Upgrade3.05%$0
American Express vs Varo Bank3.75%$0
American Express vs Wealthfront4.20%$0
American Express vs Wells Fargo0.05%$25