High-Yield Savings Account Comparison

Affirm vs. American Express

Compare rates, requirements, and features side-by-side to find the best option for you.

Analysis by Aviel Fahl
Updated December 10, 2025

Affirm

Affirm Money Account

3.60%
APY
Dec 10, 2025
FDIC InsuredNo MinimumsGreat iOS AppGreat Android App
Show Fine Print & Trends
Min. Deposit$0
Min. Balance$0
Maintenance Fee$0
Compound FreqDaily
Direct DepositNot required
Deposit InsuranceFDIC Insured(Cert: 58410)
EligibilityUnited States
Mobile Ratings
BBB Rating

Important Note

While Affirm is not a bank, it is FDIC-insured through partner Cross River Bank.

Rate Stability

Rate Adjusted
-0.25%
Since 90 days ago

American Express

High Yield Savings Account

3.40%
APY
Dec 10, 2025
FDIC InsuredNo MinimumsGreat iOS App
Show Fine Print & Trends
Min. Deposit$0
Min. Balance$0
Maintenance Fee$0
Compound FreqDaily
Direct DepositNot required
Deposit InsuranceFDIC Insured(Cert: 27471)
EligibilityUnited States
Mobile Ratings
BBB Rating

Rate Stability

Rate Adjusted
-0.10%
Since 30 days ago

Market Reality Check

Both of these banks offer rates below the current top tier. The best rates we track are currently above 4.25% APY.

See Top Rates

Affirm vs. American Express Savings Calculator

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

Affirm earns $127.3 more than American Express.

Affirm

Affirm Money Account

3.60% APY

Savings Breakdown

  • Interest Earned
    +$2,177.80(10.8%)
  • Total Contributions
    $13,000
  • Initial Deposit
    $5,000

Projected Balance

$20,177.80

Effective APY
3.60%

American Express

High Yield Savings Account

3.40% APY

Savings Breakdown

  • Interest Earned
    +$2,050.50(10.2%)
  • Total Contributions
    $13,000
  • Initial Deposit
    $5,000

Projected Balance

$20,050.50

Effective APY
3.40%

The Banksparency Savings Calculator provides estimated savings growth based on user input and our latest data.

Comparison Analysis

Comparing Affirm vs. American Express

Updated: Dec 10, 2025

Why Affirm?

  • Higher potential APY (3.60% vs 3.40%) on all balances
  • Higher rated Android app (4.8 vs 3.6)

Why American Express?

No distinct advantages found vs Affirm.

— Key Feature Differences —

Better Returns at $10,000
Affirm

Affirm's Affirm Money Account earns more on smaller deposits (approx. $360 vs $340/yr).

Better Returns at $25,000
Affirm

Affirm's Affirm Money Account pulls ahead with larger amounts (approx. $900 vs $850/yr).

Best for Simplicity
Affirm

Affirm's Affirm Money Account offers 3.60% 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
Automated Data Audit

Executive Summary

Affirm offers the Affirm Money Account with a competitive APY of 3.60%, which is higher than American Express's High Yield Savings Account at 3.40%. Both accounts are online-only and require no minimum deposit or maintenance fees. Affirm's account stands out for its simplicity, as it does not have direct deposit requirements or caps on earnings. While American Express provides a solid alternative with a nearly identical APY, Affirm's offering is the clear winner based on the provided data.

Analysis generated based on current Banksparency database records

* AI-generated content provided for informational purposes only. Accuracy is not guaranteed; always verify details with the provider.

Top Market Contenders

See who beats both Affirm and American Express.

Compare All High-Yield Savings Accounts
Pibank
Pibank Savings
FDIC InsuredNo Minimums
4.60% APY
+1.00% vs Affirm
Better Rate
Axos Bank
Axos ONE
FDIC InsuredNo MinimumsGreat iOS AppGreat Android App
4.31% APY
+0.71% vs Affirm
Better Rate
TIMBR
Premium Savings Account
FDIC InsuredLow Minimums
4.40% APY
+0.80% vs Affirm
Better Rate
FeatureAffirmAmerican Express
APY
3.60%
Verified: 12/10/2025
↘︎ 0.25%90d Change
3.40%
Verified: 12/10/2025
↘︎ 0.10%90d Change
Product NameAffirm Money AccountHigh Yield Savings Account
Minimum Deposit$0$0
Min. Balance for APY$0$0
Monthly Fee$0$0
Branch AccessNoneNone
Account Type
Online Only
Online Only
Direct Deposit Req.NoneNone
Checking BundleNoNo
Mobile Apps
iOS4.9
Android4.8
iOS4.9
Android3.6
BBB RatingA+F
Important NotesWhile Affirm is not a bank, it is FDIC-insured through partner Cross River Bank.-
Next Steps

📈 Compare Savings Rates Over Time

Historical Performance

Last 11 Months Analysis
MetricAffirmAmerican Express
Affirm Money AccountHigh Yield Savings Account
Current APY
3.60%3.40%
Trend
Stable Stable
Velocity (bps/mo)
-2.7-3.3
Days Since Change
7514
11-Month High
3.85%3.80%
11-Month Low
3.60%3.40%
Adjustments / Mo
0.090.37
Volatility Score
0.0300.031
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 323-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 3.60% with other banks
Bank PairCompetitor APYMin Deposit
Affirm vs Ally Bank3.30%$0
Affirm vs Axos Bank4.31%$0
Affirm vs Bank of America0.01%$100
Affirm vs Barclays4.00%$0
Affirm vs Bask Bank3.90%$0
Affirm vs Betterment3.50%$10
Affirm vs BMO Alto3.25%$0
Affirm vs Bread Savings4.10%$100
Affirm vs BrioDirect4.00%$5,000
Affirm vs Capital One3.40%$0
Affirm vs Charles Schwab Bank0.15%$0
Affirm vs Chase Bank0.01%$0
Affirm vs Chime3.50%$0
Affirm vs CIT Bank3.75%$100
Affirm vs Citibank3.30%$0
Affirm vs Citizens Access™3.15%$0.01
Affirm vs Climate First Bank4.21%$50
Affirm vs Discover Bank3.40%$0
Affirm vs E*TRADE from Morgan Stanley3.75%$0
Affirm vs Elevault4.08%$0
Affirm vs EverBank4.05%$0
Affirm vs Fitness Bank4.75%$100
Affirm vs FNBO Direct3.00%$1
Affirm vs Forbright Bank4.00%$0
Affirm vs FVCbank3.85%$500
Affirm vs GO2bank4.50%$0
Affirm vs Ivy Bank4.25%$2,500
Affirm vs LendingClub4.20%$0
Affirm vs Marcus by Goldman Sachs3.65%$0
Affirm vs Neighbors Bank4.30%$0
Affirm vs Newtek Bank4.35%$0.01
Affirm vs Openbank4.20%$500
Affirm vs Peak Bank4.20%$100
Affirm vs Pibank4.60%$0
Affirm vs PNC3.53%$0
Affirm vs Presidential Bank4.00%$5,000
Affirm vs Quontic Bank3.75%$100
Affirm vs Salem Five Direct3.71%$10
Affirm vs Sallie Mae Bank3.90%$0
Affirm vs Santander Bank0.01%$25
Affirm vs SoFi Bank4.30%$0
Affirm vs Synchrony Bank3.65%$0
Affirm vs TD Bank2.75%$0
Affirm vs TIMBR4.40%$1,000
Affirm vs UFB Direct3.71%$5000
Affirm vs Upgrade3.05%$0
Affirm vs Valley Direct4.10%$1,000
Affirm vs Varo Bank5.00%$0
Affirm vs Vio Bank4.16%$100
Affirm vs Wealthfront4.15%$0
Affirm vs Wells Fargo0.05%$25
Affirm vs Zynlo Bank4.05%$10
Compare American Express' APY of 3.40% with other banks
Bank PairCompetitor APYMin Deposit
American Express vs Ally Bank3.30%$0
American Express vs Axos Bank4.31%$0
American Express vs Bank of America0.01%$100
American Express vs Barclays4.00%$0
American Express vs Bask Bank3.90%$0
American Express vs Betterment3.50%$10
American Express vs BMO Alto3.25%$0
American Express vs Bread Savings4.10%$100
American Express vs BrioDirect4.00%$5,000
American Express vs Capital One3.40%$0
American Express vs Charles Schwab Bank0.15%$0
American Express vs Chase Bank0.01%$0
American Express vs Chime3.50%$0
American Express vs CIT Bank3.75%$100
American Express vs Citibank3.30%$0
American Express vs Citizens Access™3.15%$0.01
American Express vs Climate First Bank4.21%$50
American Express vs Discover Bank3.40%$0
American Express vs E*TRADE from Morgan Stanley3.75%$0
American Express vs Elevault4.08%$0
American Express vs EverBank4.05%$0
American Express vs Fitness Bank4.75%$100
American Express vs FNBO Direct3.00%$1
American Express vs Forbright Bank4.00%$0
American Express vs FVCbank3.85%$500
American Express vs GO2bank4.50%$0
American Express vs Ivy Bank4.25%$2,500
American Express vs LendingClub4.20%$0
American Express vs Marcus by Goldman Sachs3.65%$0
American Express vs Neighbors Bank4.30%$0
American Express vs Newtek Bank4.35%$0.01
American Express vs Openbank4.20%$500
American Express vs Peak Bank4.20%$100
American Express vs Pibank4.60%$0
American Express vs PNC3.53%$0
American Express vs Presidential Bank4.00%$5,000
American Express vs Quontic Bank3.75%$100
American Express vs Salem Five Direct3.71%$10
American Express vs Sallie Mae Bank3.90%$0
American Express vs Santander Bank0.01%$25
American Express vs SoFi Bank4.30%$0
American Express vs Synchrony Bank3.65%$0
American Express vs TD Bank2.75%$0
American Express vs TIMBR4.40%$1,000
American Express vs UFB Direct3.71%$5000
American Express vs Upgrade3.05%$0
American Express vs Valley Direct4.10%$1,000
American Express vs Varo Bank5.00%$0
American Express vs Vio Bank4.16%$100
American Express vs Wealthfront4.15%$0
American Express vs Wells Fargo0.05%$25
American Express vs Zynlo Bank4.05%$10