Betterment vs. Newtek Bank
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.
Newtek Bank's Personal High Yield Savings advertises 4.20% APY.
See how they compare on rate stability, mobile app ratings, and more below.
The Bottom Line
On a $10,000 balance, Newtek Bank's Personal High Yield Savings earns about $70 more in a year than Betterment's Cash Reserve: $420 against $350.
Choose Betterment if you're an Android user. Choose Newtek Bank if getting the best rate matters most, you want a no-strings-attached account, or you want to avoid a promo rate with a scheduled drop.
Important Considerations
Betterment's 4.25% APY is a promotional rate, then 3.50%. Newtek Bank's 4.20% APY has no scheduled end, though every rate can change.
| Metric | BettermentCash Reserve Oct 5, 2026 | Newtek BankPersonal High Yield Savings Oct 5, 2026 |
|---|---|---|
| APY | Up to4.25%Promotional rate | 4.20% |
Earns in a year | $5,000+$175 $10,000+$350 $25,000+$875 | $5,000+$210 $10,000+$420 $25,000+$1,050 |
Min. Deposit | $0 | $100 |
Snapshot view. Rates subject to change. | ||
Terms | - | Newtek Bank has paused new applications for this account. New customers can only join a waitlist. The advertised APY applies to existing accounts. |
| Features | FDIC InsuredNo MinimumsGreat iOS AppGreat Android App | FDIC InsuredLow MinimumsGreat iOS AppDaily CompoundingStable Rate |
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. Newtek Bank
Executive Summary
Betterment last changed its rate on September 21, 2026, up 25 basis points; Newtek Bank last changed its rate on February 5, 2026, down 15 basis points. At a balance of $10,000, Newtek Bank offers a standard rate of 4.2%, while Betterment's standard rate is 3.5%. Newtek Bank has led since at least January 23, 2026, with a gap of 70 basis points. Both banks have not changed their rates since at least their series start on January 23, 2026.
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 rated Android app (4.7 vs 3.9)
Why Newtek Bank?
No distinct advantages found vs Betterment.
Key Feature Differences
Better Returns at $10,000
Newtek BankNewtek Bank's Personal High Yield Savings earns more on smaller deposits (approx. $420 vs $350/yr).
Better Returns at $25,000
Newtek BankNewtek Bank's Personal High Yield Savings pulls ahead with larger amounts (approx. $1050 vs $875/yr).
Better Mobile App Experience
BettermentBetterment offers an iOS app rated 4.8 (vs. 4.5) and Android app rated 4.7 (vs. 3.9)
Shared Benefits
Over a 1-year period, Newtek Bank's Personal High Yield Savings pays $70 more interest on a $10,000 balance than Betterment's Cash Reserve.
*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. Newtek Bank Savings Calculator
You earn $70 more with Newtek Bank than Betterment 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.
Betterment
Cash Reserve
Savings Breakdown
- Interest Earned+$350.00(3.4%)
- Total Contributions$0
- Initial Deposit$10,000
Projected Balance
$10,350.00
Newtek Bank
Personal High Yield Savings
Savings Breakdown
- Interest Earned+$420.00(4.0%)
- Total Contributions$0
- Initial Deposit$10,000
Projected Balance
$10,420.00
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 $345 a year in interest.
Both Betterment and Newtek Bank advertise far more than that typical branch-bank rate.
| Feature | Betterment | Newtek Bank |
|---|---|---|
| APY | 4.25% Range: 3.50% - 4.25% Observed: 10/5/2026 0.25%90-day change | 4.20% Observed: 10/5/2026 Stable over 90 days |
| Product Name | Cash Reserve | Personal High Yield Savings |
| Minimum Deposit | $0 | $100 |
| Min. Balance for APY | $0 | $0.01 |
| Monthly Fee | $0 | $0 |
| Compound Frequency | N/A | Daily |
| Branches | None | None |
| Physical Branches | Not reported | 1 (FL) |
| Direct Deposit Req. | None | None |
| Checking Bundle | No | No |
| Mobile Apps | ||
| FDIC or NCUA Insured | Yes | YesVerify FDIC |
| Zelle® Support | Not Supported | Not Supported |
| BBB Rating | A- | A+ |
| Important Notes | - | Newtek Bank has paused new applications for this account. New customers can only join a waitlist. The advertised APY applies to existing accounts. |
| Next Steps | Visit SiteVerify at Betterment Non-sponsored link to official site | Visit SiteVerify at Newtek Bank 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.
Newtek Bank
The two figures answer different questions, so they sit side by side and are not combined.
In Q2 2026, Newtek Bank paid a higher average rate on savings and money market deposits than 100% 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. Newtek Bank lists 8 CD terms, from 6 to 60 months. Its highest rate is 4.10% APY on the 12-month CD. Each row below is one term, with the FDIC national average for that term beside it.
| Term | Newtek Bank APY | FDIC average (Sep 2026) |
|---|---|---|
| 12 months | 4.10% APY$2,500 minimum | 1.73% |
| 6 months | 4.00% APY$2,500 minimum | 1.41% |
| 9 months | 4.00% APY$2,500 minimum | |
| 18 months | 3.90% APY$2,500 minimum | |
| 24 months | 3.80% APY$2,500 minimum | 1.61% |
| 36 months | 3.80% APY$2,500 minimum | 1.36% |
| 48 months | 2.00% APY$2,500 minimum | 1.28% |
| 60 months | 2.00% APY$2,500 minimum | 1.38% |
Betterment: no CD listed on Banksparency.
Compare Savings Rates Over Time
Historical Performance
| Metric | Betterment |
|---|---|
| Cash Reserve | |
Current APY | 4.25% |
Trend | Stable |
Speed of change | 0.08 |
Days Since Change | 14 |
8-Month High | 4.25% |
8-Month Low | 3.25% |
Changes per month | 0.35 |
Steadiness | 0.085 |
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 255-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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More Comparisons
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 Capital One | 3.10% | $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 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 |