Betterment vs. Capital One
Betterment's Cash Reserve advertises up to 4.25% APY. That 4.25% is a promotional rate. The account advertises 3.50% after it ends. New customer offer. On a $10,000 balance the account earns 3.50% overall, about $350 in a year.
Capital One's 360 Performance Savings advertises 3.10% APY.
See how they compare on rate stability, mobile app ratings, and more below.
The Bottom Line
On a $10,000 balance, Betterment's Cash Reserve earns about $40 more in a year than Capital One's 360 Performance Savings: $350 against $310.
Choose Betterment if getting the best rate matters most. Choose Capital One if you want a no-strings-attached account, you want to avoid a promo rate with a scheduled drop, you value in-person banking, or you want Zelle for quick transfers.
Important Considerations
Betterment's 4.25% APY is a promotional rate, then 3.50%. Capital One's 3.10% APY has no scheduled end, though every rate can change.
| Metric | BettermentCash Reserve Oct 5, 2026 | Capital One360 Performance Savings Oct 5, 2026 |
|---|---|---|
| APY | Up to4.25%Promotional rate | 3.10% |
Earns in a year | $5,000+$175 $10,000+$350 $25,000+$875 | $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 App | 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.
Comparison Analysis
Comparing Betterment vs. Capital One
Executive Summary
Betterment has offered the higher standard rate since March 13, 2026, by 40 basis points today. Betterment's standard rate is 3.5% on balances of $10 or more, while Capital One's standard rate is 3.1% on balances of $0 to $4,999.99. Betterment has not changed its rate since September 21, 2026, while Capital One last changed its rate on September 25, 2026. Both banks have maintained their rates since their respective series start dates.
The analysis is based on current Banksparency database records
* This content is provided for informational purposes only; always verify details with the provider.
Why Betterment?
- Higher potential APY (4.25% vs 3.10%) on all balances (promotional rate)
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
- Fast transfers via Zelle® (up to $2,500 a day)
Key Feature Differences
Better Returns at $10,000
BettermentBetterment's Cash Reserve earns more on smaller deposits (approx. $350 vs $310/yr).
Better Returns at $25,000
BettermentBetterment's Cash Reserve pulls ahead with larger amounts (approx. $875 vs $775/yr).
Better for Simplicity
BettermentBetterment's Cash Reserve offers 4.25% APY with no bundling, direct deposit requirement or caps.
Shared Benefits
Over a 1-year period, Betterment's Cash Reserve pays $40 more interest on a $10,000 balance than Capital One's 360 Performance Savings.
*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
Betterment vs. Capital One Savings Calculator
Both accounts earn exactly the same amount.
Betterment
Cash Reserve
Savings Breakdown
- Interest Earned+$350.00(3.4%)
- Total Contributions$0
- Initial Deposit$10,000
Projected Balance
$10,350.00
Capital One
Business Savings Account
Savings Breakdown
- Interest Earned+$350.00(3.4%)
- Total Contributions$0
- Initial Deposit$10,000
Projected Balance
$10,350.00
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 $305 a year in interest.
Both Betterment and Capital One advertise far more than that typical branch-bank rate.
| Feature | Betterment | Capital One |
|---|---|---|
| APY | 4.25% Range: 3.50% - 4.25% Observed: 10/5/2026 0.25%90-day change | 3.10% Observed: 10/5/2026 0.10%90-day change |
| Product Name | Cash Reserve | 360 Performance Savings |
| Minimum Deposit | $0 | $0 |
| Min. Balance for APY | $0 | $0 |
| Monthly Fee | $0 | $0 |
| Compound Frequency | N/A | Monthly |
| Branches | None | Yes |
| Physical Branches | Not reported | 252 (CT, DC, DE, LA, MD, NJ, NY, TX (+1 more)) |
| Direct Deposit Req. | None | None |
| Checking Bundle | No | No |
| Mobile Apps | ||
| FDIC or NCUA Insured | Yes | YesVerify FDIC |
| Zelle® Support | Not Supported | Available Limit: $2,500/dayAvailable for 360 Checking accounts. |
| BBB Rating | A- | A+ |
| Next Steps | Visit SiteVerify at Betterment Non-sponsored link to official site | Visit SiteVerify at Capital One 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.
Betterment
Betterment is not a bank and files no call report. Its deposits are held at partner banks.
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
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%.
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: Call Report · Rate Paid on Deposits · Interest-Bearing Deposits · Front Book and Back Book · Deposit Rate Percentile
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 percentile 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
Betterment has no CD listed on Banksparency. Capital One lists 10 CD terms, from 6 to 60 months. Its highest rate is 4.30% APY on the 11-month CD. Each row below is one term, with the FDIC national average for that term beside it.
| Term | Capital One APY | FDIC average (Sep 2026) |
|---|---|---|
| 12 months | 4.00% APYNo minimum | 1.73% |
| 6 months | 3.30% APYNo minimum | 1.41% |
| 9 months | 3.75% APYNo minimum | |
| 11 months | 4.30% APYNo minimum | 1.73%12-month average |
| 18 months | 3.60% APYNo minimum | |
| 24 months | 3.50% APYNo minimum | 1.61% |
| 30 months | 3.50% APYNo minimum | |
| 36 months | 3.50% APYNo minimum | 1.36% |
| 48 months | 3.50% APYNo minimum | 1.28% |
| 60 months | 3.60% APYNo minimum | 1.38% |
Betterment: no CD listed on Banksparency.
Compare Savings Rates Over Time
Historical Performance
| Metric | Betterment | Capital One | |
|---|---|---|---|
| Cash Reserve | Business Savings Account | 360 Performance Savings | |
Current APY | 4.25% | 3.50% | 3.10% |
Trend | Stable | Stable | Stable |
Speed of change | 0.05 | 0.00 | -0.02 |
Days Since Change | 14 | 195 | 10 |
8-Month High | 4.25% | 3.50% | 3.30% |
8-Month Low | 3.90% | 3.50% | 3.00% |
Changes per month | 0.24 | 0.00 | 0.48 |
Steadiness | 0.039 | 0.000 | 0.032 |
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.
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Compare Betterment's APY of 4.25% with other banks
| Bank Pair | Competitor APY | Min Deposit |
|---|---|---|
| Betterment vs Ally Bank | 3.10% | $0 |
| Betterment vs American Express | 3.10% | $0 |
| Betterment vs Axos Bank | 4.21% | $0 |
| Betterment vs Barclays | 3.65% | $0 |
| Betterment vs Chime | 3.75% | $0 |
| Betterment vs CIT Bank | 3.75% | $100 |
| Betterment vs EverBank | 4.20% | $0 |
| Betterment vs Marcus by Goldman Sachs | 3.50% | $0 |
| Betterment vs Newtek Bank | 4.20% | $100 |
| Betterment vs Openbank | 4.15% | $500 |
| Betterment vs Pibank | 4.25% | $0 |
| Betterment vs SoFi Bank | 4.20% | $0 |
| Betterment vs Synchrony Bank | 3.55% | $0 |
| Betterment vs Varo Bank | 3.75% | $0 |
| Betterment vs Wealthfront | 4.20% | $0 |