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High-Yield Savings Account Comparison

Ally Bank vs. Capital One

Ally Bank and Capital One 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.

Analysis by Aviel Fahl
Newest reading October 5, 2026
The whole bank

The Bottom Line

On a $10,000 balance, Ally Bank's Savings Account and Capital One's 360 Performance Savings earn the same: about $310 in a year each.

The Ally Bank and Capital One savings accounts are very similar. Choose Capital One if you value in-person banking.

Comparison of Ally Bank vs Capital One savings accounts
Metric

Ally Bank

Savings Account

Oct 5, 2026

Capital One

360 Performance Savings

Oct 5, 2026
APY3.10%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 AppIn-Person AccessZelle® Supported

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.

See the highest rates

Comparison Analysis

Comparing Ally Bank vs. Capital One

Newest reading:

Executive Summary

Ally Bank held $156.6 billion in deposits as of June 30, 2026, while Capital One held $512.6 billion at the same date. Both banks offer the same standard rate of 3.1% at a balance of $10,000. Ally Bank paid an average of 3.03% on savings and money market deposits. Capital One's average was 2.91%.

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 Capital One.

Why Capital One?

  • Physical branch access (Over 200 branches in Louisiana, Maryland, New Jersey, New York, Texas, Virginia and Washington, D.C.)
  • Offers 3 different high-yield savings options

Key Feature Differences

Better for Simplicity
Capital One

Capital One's Business Savings Account offers 3.50% APY with no bundling, direct deposit requirement or caps.

Better Mobile App Experience
Capital One

Capital One offers an iOS app rated 4.8 (vs. 4.7) and Android app rated 4.5 (vs. 4.4)

Shared Benefits

Both offer monthly maintenance-free account options Both banks have options with $0 opening deposit Fast transfers via Zelle® Available Nationwide Available to New & Existing Customers
Verify At
Ally Bank

Non-sponsored link to official site

Verify At
Capital One

Non-sponsored link to official site

Top Market Contenders

Marcus by Goldman Sachs
3.50% APY

Ally Bank vs. Capital One Savings Calculator

Calculations based on current APY for Savings Account and Business Savings Account
$
$

You earn $40 more with Capital One than Ally Bank 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.

Ally Bank

Savings Account

3.10% APY

Savings Breakdown

  • Interest Earned
    +$310.00(3.0%)
  • Total Contributions
    $0
  • Initial Deposit
    $10,000

Projected Balance

$10,310.00

Effective APY
3.10%

Capital One

Business Savings Account

3.50% APY

Savings Breakdown

  • Interest Earned
    +$350.00(3.4%)
  • Total Contributions
    $0
  • Initial Deposit
    $10,000

Projected Balance

$10,350.00

Effective APY
3.50%

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 Capital One advertise far more than that typical branch-bank rate.

0.05% APY at a typical branch bank, against 3.10%+ here
See the highest rates
FeatureAlly BankCapital One
APY
3.10%
Observed: 10/5/2026
0.10%90-day change
3.10%
Observed: 10/5/2026
0.10%90-day change
Product NameSavings Account360 Performance Savings
Minimum Deposit$0$0
Min. Balance for APY$0$0
Monthly Fee$0$0
Compound FrequencyDailyMonthly
BranchesNoneYes
Physical Branches1 (UT)252 (CT, DC, DE, LA, MD, NJ, NY, TX (+1 more))
Direct Deposit Req.NoneNone
Checking BundleNoNo
Mobile Apps
iOS4.7
Android4.4
iOS4.8
Android4.5
FDIC or NCUA Insured
Zelle® Support
Available
Limit: $5,000/dayBenchmark for online Zelle; high limits.
Available
Limit: $2,500/dayAvailable for 360 Checking accounts.
BBB RatingA+A+
Next Steps
Visit Site

Non-sponsored link to official site

Visit Site

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

3.03%
Q2 2026 ·
3.10% APY
As observed Oct 5, 2026

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%.

3.09%
Q2 2026 ·
$156.6B
Total deposits
Q2 2026
0.1%
Q2 2026

What Ally Bank actually pays

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.

Capital One

2.90%
Q2 2026 ·
3.10% APY
As observed Oct 5, 2026

The two figures answer different questions, so they sit side by side and are not combined.

In Q2 2026, Capital One paid a higher average rate on savings and money market deposits than 92% of banks that reported a figure (FDIC call report). The all-bank median was 1.45%.

2.96%
Q2 2026 ·
$512.6B
Total deposits
Q2 2026
5.7%
Q2 2026

What Capital One actually pays

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: · · · ·

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 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. Capital One lists CDs at 6, 9, 11, 12, 18, 24, 30, 36, 48 and 60 months. Each row below is one term, with the best rate each bank advertises for it.

TermAlly Bank Capital One APYFDIC average (Sep 2026)
12 months4.15% APYNo minimum4.00% APYNo minimum1.73%
3 months2.80% APYNo minimumNot listed here1.13%
6 months3.85% APYNo minimum3.30% APYNo minimum1.41%
9 months4.00% APYNo minimum3.75% APYNo minimum
11 months2.80% APYNo minimum4.30% APYNo minimum1.73%12-month average
18 months4.25% APYNo minimum3.60% APYNo minimum
24 monthsNot listed here3.50% APYNo minimum1.61%
30 monthsNot listed here3.50% APYNo minimum
36 months4.00% APYNo minimum3.50% APYNo minimum1.36%
48 monthsNot listed here3.50% APYNo minimum1.28%
60 months4.10% APYNo minimum3.60% APYNo minimum1.38%

FDIC national averages

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 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.

Capital One

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

Last 8 Months Analysis
MetricAlly BankCapital One
Savings AccountBusiness Savings Account360 Performance Savings
Current APY
3.10%3.50%3.10%
Trend
Stable Stable Stable
Speed of change
-0.010.00-0.02
Days Since Change
1019510
8-Month High
3.20%3.50%3.30%
8-Month Low
3.00%3.50%3.00%
Changes per month
0.360.000.48
Steadiness
0.0200.0000.032
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 248-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.

More Comparisons

Compare Ally Bank's APY of 3.10% with other banks
Compare Capital One's APY of 3.10% with other banks