MutualOne Bank: Savings Accounts & Rates
Mission: Banksparency aims to make MutualOne Bank's savings accounts transparent and comparable to the market.
Savings Overview
Mo Premium Savings
Online Savings
Market Reality Check
This bank offers rates below the current top tier. The best rates we track are currently above 4.25% APY.
Bank Overview
- HQ LocationFramingham, Massachusetts
- Founded1889
- Ratings & Trust
- Deposit InsuranceFDIC Insured(Cert: 26395)
Our Take on MutualOne Bank
The Good
- Competitive 4.07% APY
- No monthly maintenance fees
- Highly rated mobile apps (iOS: 4.9, Android: 4.4)
- Access to physical branches
Considerations
- High minimum balance ($20000) to earn APY
MutualOne Bank offers the Mo Premium Savings account with a competitive APY of 4.07%. This account has no monthly maintenance fees and does not require direct deposit or a checking account to earn interest. However, it does have a high minimum balance requirement of $20,000 to qualify for the APY. Customers can also enjoy highly rated mobile apps and access to physical branches.
Savings Accounts: In-Depth View
Savings Accounts Offered by MutualOne Bank
| Feature | Mo Premium Savings | Online Savings |
|---|---|---|
APY | 4.07%Verified: 12/14/2025 | 0.40%Range: 0.37% - 0.40%Verified: 12/14/2025 |
APY Trend | Very StableNo rate changes in last 90 days | Very StableNo rate changes in last 90 days |
Min. Deposit | $20,000 | $5,000 |
Min. Balance | $20,000 | N/A |
Monthly Fee | $0 | $0 |
Direct Deposit | None | None |
Checking Bundle | No | No |
Branch Access | Yes | None |
Compounding | Monthly | Monthly |
FDIC Insured | Yes | Yes |
Eligibility | United States | United States |
Important | - | Earn 0.40% APY up to $1,000,000.01, then 0.37% APY thereafter. |
| Next Steps | - | - |
Calculate Savings for MutualOne Bank
Savings Breakdown
- Interest Earned+$5,791.20(14.9%)
- Total Contributions$13,000
- Initial Deposit$20,000
Projected Balance
$38,791.20
The Banksparency Savings Calculator provides estimated savings growth based on user input and our latest data.
MutualOne Bank Savings Rates Over Time
Historical APY Insights
Last 3 Months| Metric | Online Savings | Mo Premium Savings |
|---|---|---|
Latest APY | 0.40% | 4.07% |
Trend | Sideways | Sideways |
Slope (bps/mo) | -0.0 | -0.0 |
Rate Changes / Mo | 0.00 | 0.00 |
Days Since Last Change | 94 | 94 |
High (-3m) | 0.40% | 4.07% |
Low (-3m) | 0.40% | 4.07% |
Draw-down | 0.0% | 0.0% |
Volatility (CV) | 0.000 | 0.000 |
How to read these metrics▼
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.
- Slope (bps/mo)
- Speed of change. A high positive number means they raise rates quickly. 10 bps = 0.10%.
- Rate Changes / 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 94-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.
Why track this? Understanding volatility helps you avoid "bait-and-switch" rates. A steady, rising slope is ideal; high volatility often signals a temporary teaser rate.
Compare with MutualOne Bank
| Feature | Current View MutualOne Bank | Empty Slot |
|---|---|---|
| Product | - | |
APY | 4.07%Verified: 12/14/2025 | - |
APY Trend | Very StableNo rate changes in last 90 days | - |
| Min. Deposit | $20,000 | - |
| Monthly Fee | $0 | - |
Direct Deposit | No | - |
Checking Bundle | No | - |
| Branch Access | Yes | - |
| Eligibility | United States | - |
Compounding | Monthly | - |
FDIC Insured | Yes | - |
| Next Steps | - | - |
Alternatives to MutualOne Bank
Banks with Higher/Similar Savings APY
For a top list of the highest savings rates, see all HYSA top rates
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