Massachusetts Money Market Rates - September 2026
Brian McKay
Brian McKay
Founder & Data Architect- Automated Online Rate Data Aggregation
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Current Massachusetts money market deposit account rates include Clinton Savings BankClinton Savings Bank200 Church St, Clinton, MA 01510A-5.0 ★Texas Ratio: 15.56%Real return: +1.70%APY minus 2.8% CPI (February 2026) Tiered Money Market Account at 4.50% APY, Bank5 ConnectBank5 Connect160 County St, New Bedford, MA 02740A5.0 ★Texas Ratio: 7.65%Real return: +1.20%APY minus 2.8% CPI (February 2026) Connect Money Market at 4.00% APY, Workers Federal Credit UnionWorkers Federal Credit Union815 Main St, Fitchburg, MA 01420A5.0 ★Texas Ratio: 7.66%Real return: +1.05%APY minus 2.8% CPI (February 2026) Signature Money Market Checking at 3.85% APY, Liberty Bay Credit UnionLiberty Bay Credit Union300 Granite St Fl 3, Braintree, MA 02184 3909A+5.0 ★Texas Ratio: 0.44%Real return: +0.95%APY minus 2.8% CPI (February 2026) Business Money Market at 3.75% APY, and Rockland Federal Credit UnionRockland Federal Credit Union241 Union St, Rockland, MA 02370A+5.0 ★Texas Ratio: 2.65%Real return: +0.75%APY minus 2.8% CPI (February 2026) Money Market at 3.55% APY. Money market rates as of September 21, 2026 according to verified data from MonitorBankRates.
Use the tables below to compare money market rates across Massachusetts side-by-side. Massachusetts money market rates currently reach as high as 4.50% APY from Clinton Savings Bank at 200 Church St, Clinton, MA 01510. Rates are continually updated, so we recommend checking back frequently.
Rates reflect recent market quotes and representative offers available to depositors in Massachusetts and surrounding area. Last Updated and Verified: September 21, 2026
Compare the Best Money Market Rates Today in Massachusetts
Must maintain the minimum balance each day that is required in each tier to obtain the disclosed Annual Percentage Yield. Rate is variable and can change after the account is opened.
Balance: $15,000 and Above
Balance: $249,999.01 - $9,999,999.00
Balance: $2,499,999.01 - $9,999,999
Balance: $250,000 - higher; Compounding: Monthly
Earn 3.75% Annual Percentage Yield for new money only. Fees may reduce earnings.
Preferred rates; New money required
Preferred rates; New money required
$50,000.00+; Balance: $50,000+
$50,000+; Balance: $50,000+
Balance: $.01 - $4,999.99; Monthly Service Charge: $50.00
Compounding: Daily; Balance: $1,000,000+; Open Online
Balance: $500,000 - $999,999.99
Balance: $500,000.00
Funds must be new money. The High Five Money Market is a blended rate account; you will earn the first-tier dividend rate and annual percentage yields on the balance up to $50,000.00. The High Five Money Market balance of $50,000.01 or over will match the dividend rates and annual percentage yields of the Money Market, WINN, Members Money Market, and W.E. Win Accounts.
Balance: $99,999.01 - $249,999
$15,000+; Intro rate
$15,000+ Intro rate APY; Dividend Rate
Balance: $20,000 and over
Balance: $100,000 and over
Balance: $1,000,000+
$1,000,000+; APY - Annual Percentage Yield assumes that all funds, including dividends, remain on deposit for 365 days. The minimum balance to avoid a service fee is $2,500.00. Fees may reduce earnings. Rates subject to change daily and may change after the account is opened. Accounts are insured by NCUA up to $250,000. Shares and Deposits in excess of NCUA limits are fully insured by MSIC.
Balance: $1,000,000+
$1,000,000+; The minimum balance to avoid a service fee is $2,500.00. Fees may reduce earnings. Rates subject to change daily and may change after the account is opened. Accounts are insured by NCUA up to $250,000. Shares and Deposits in excess of NCUA limits are fully insured by MSIC.
Balance: $50,000 or more
Rate Index: 30 Day Avg SOFR* minus 10% of the 30 Day Avg SOFR rate index
Balance: $500,000 and up
$25,000.00+; Balance: $25,000.00-$49,999.99; Balance: $25,000.00-$49,999.99
Balance: $2,000,000-$4,000,000 (plus interest paid)
Balance: $2,000,000-$4,000,000 (plus interest paid)
Balance: $500,000 +
Balance: $300,000.00 to $999,999.99
Balance: $300,000.00 to $999,999.99
Compounding: Daily; Balance: $500,000 - $999,999; Open Online
Balance: $100,000 - $249,999.99
Balance: $10,000.00 and above
Balance: $250,000-$499,999.99
Balance: $50,000 to $99,999.99
Balance: $75,000 - $249,999; Compounding: Monthly
Balance: $250,000.00
Daily balances from $10.00 to $24,999.99 will earn 0.05% APY. Daily balances below $10.00 will not earn interest. Earn this high rate when you open a Business Platinum Money Market with money that is not already held in a Bluestone Bank account.
Balance: $1,000,000.01 or More
Balance: $100,000.00 to $299,999.99
Balance: $100,000.00 to $299,999.99
Balance: $100,000 or more
Balance: $250,000.00 - $999,999.99
Balance: $250,000.00 - $999,999.99
Balance: $0-$24,999.99
Balance: >= $1,000,000; $10 monthly maintenance service charge; Waived with $1,000 average monthly balance; Non-CSB ATM Surcharge Reimbursement: Up to $12/month; Zelle: Yes; Statements: Online & Paper
Balances $250,000-$1,000,000 (plus interest paid)
Balances $250,000 to $1,000,000; Rates are variable and subject to change at any time without notice. This is a tiered rate account. A minimum balance of $250,000.00 is required to open the account and avoid a $10 monthly service charge. Balances of $250,000 to $1,000,000 earn 3.00% APY; balances less than $250,000 earn 1.50% APY. Funds over $1,000,000, excluding interest paid, will be returned to account owners. All accounts must be opened in person and are limited to one account per primary account owner. Fees may reduce earnings.
Balance: Balances $250,000 and above
Balances $250,000 and above; Rates are variable and subject to change at any time without notice. This is a tiered rate account. A minimum balance of $250,000.00 is required to open the account and avoid a $10 monthly service charge. Balances of $250,000 and above earn 3.00% APY; balances less than $250,000 earn 1.50% APY. All accounts must be opened in person. Fees may reduce earnings.
Balance: $100,000 - $2,000,0000
Balance: $1million and above
Compounding: Daily; Balance: $250,000 - $499,999; Open Online
Balance: $10,000.01 - $50,000
Balance: $100,000-$249,999.99
Balance: $500,000.01 or more; Consumer accounts only.
Balance: $99,999.01 - $249,999.00
Balance: $500,000 - $999,999.99; Rates are variable and may change after the account is opened at any time at SCU's discretion. Fees may reduce earnings on the account. Other conditions may apply. Please refer to SCU's Important Account Information for Our Members and Schedule of Fees and Service Charges for important information and disclosures.
Balance: $50,000 - $249,999.99
Balance: $25,000 to $49,999.99
Balance: $10 or more
Balance: $10 +
Balance: $500,000.01-$1,000,000.00
Balance: $500,000+
Balance: $50,000 - $99,999.99
Balance: $100,000.00 - $249,999.99
Balance: $100,000.00 - $249,999.99
Balance: >= $1,000,000; $10 monthly maintenance service charge; Waived with $1,000 average monthly balance; Non-CSB ATM Surcharge Reimbursement: Up to $12/month; Zelle: Yes; Statements: Online & Paper
Stated APY for each tier will apply to the entire balance in your account. Tier levels and APYs are subject to change without notice. Customer must maintain the minimum balance daily to earn the stated APY. Fees could reduce earnings. Monarch Checking account with an active debit card required. E-Statements required to avoid a $3.00 paper statement fee. See Personal Schedule of Fees for product and service fee information.
Balance: $500,000 + above
Balance: $150,000 - $499,999.99
Compounding: Daily; Balance: $100,000 - $249,999; Open Online
Balance: $250,000 - higher; Compounding: Monthly
Balance: $500,000.00+
Balance: $100,000.01 - $250,000.00; Consumer accounts only.
Balance: $50,000 - $249,999.99; Rates are variable and may change after the account is opened at any time at SCU's discretion. Fees may reduce earnings on the account. Other conditions may apply. Please refer to SCU's Important Account Information for Our Members and Schedule of Fees and Service Charges for important information and disclosures.
Balance: $250k-999,999.99; $10 monthly maintenance service charge; Waived with $1,000 average monthly balance; Non-CSB ATM Surcharge Reimbursement: Up to $12/month; Zelle: Yes; Statements: Online & Paper
Balance: $10,000 to $24,999.99
Balance: $100,000.00 and above; Balance: $100,000.00 and above
Balance: $100,000.00 and above; Open Online
Balance: $100,000 - $249,999; Compounding: Monthly
Balance: $250,000 - higher; Compounding: Monthly
Balance: $25,000.00 - $99,999.99
Balance: $25,000.00 - $99,999.99
Balance: $50,000 - $99,999.99
Balance: $1,000.00 - $100,000.00; Consumer accounts only.
Balance: $24,999.01 - $99,999.00
Balance: $2500 to $9,999.99
Balance: $125,000 and over
Banks and Credit Unions: If you identify an incorrect rate or wish to request the removal of your institution’s data, please contact us here.
Massachusetts Money Market Rate Trends
Compare local Massachusetts money market quotes against the statewide average
Daily money market rate averages tracked across our database of 8,500+ banks and credit unions, updated every evening.
Massachusetts high-yield MMA rates rose 0.023 points over the past 7 days to 3.060% APY.
Massachusetts standard MMA rates fell 0.021 points over the past 7 days to 0.732% APY.
Massachusetts Money Market Rate Forecast, Next 12 Months
Money market rates move with Federal Reserve policy. Our model uses the current MA high-yield MMA average and a Fed funds spread to project the likely rate trajectory for 2026–2027.
Money market account rates are variable and move in close correlation with the Federal Reserve’s federal funds rate target. Our 12-month forecast is derived from the current MA high-yield money market average of 3.060% APY and a Fed funds spread model calibrated to the historical relationship between policy rate changes and deposit rate adjustments at banks and credit unions.
Key assumptions: the Federal Reserve holds the federal funds rate at its current level over the next 12 months, with the possibility of one 25 basis point increase; deposit rates at banks and credit unions track policy-rate changes within 60–90 days. High-yield money market rates tend to adjust faster than standard branch-based accounts.
Important notice: This forecast is for informational purposes only and should not be used as the sole basis for financial decisions. Rate forecasts carry significant uncertainty. The actual trajectory will depend on Federal Reserve decisions, economic conditions, and competitive dynamics among financial institutions in Massachusetts.
Money Market Account Earnings in Massachusetts
Annual interest earnings at current MA average APYs, based on the high-yield and standard money market averages tracked in our database. Balances reflect the higher minimums typical of money market accounts. Compounding assumed monthly.
| Balance | HY Money Market (3.060% APY) | Monthly Earnings | Standard MMA (0.732% APY) | Monthly Earnings |
|---|---|---|---|---|
| $10,000 | $306.00 / year | $25.50 | $73.15 / year | $6.10 |
| $25,000 | $765.00 / year | $63.75 | $182.88 / year | $15.24 |
| $50,000 | $1,530.00 / year | $127.50 | $365.75 / year | $30.48 |
| $100,000 | $3,060.00 / year | $255.00 | $731.50 / year | $60.96 |
| Earnings estimates use daily compounding. Actual earnings depend on exact rate, compounding frequency, rate tier, and daily balance maintained. Rates are variable and subject to change. Source: Massachusetts money market rate averages as of September 22, 2026. | ||||
About Our Massachusetts Money Market Rate Database
MonitorBankRates tracks 55 money market rates from 30 banks and 25 credit unions offering money market deposit accounts to Massachusetts residents, including community institutions, regional banks, and national online options. Our proprietary aggregation system pulls verified rate data directly from each institution’s official website, no estimates, no national averages passed off as real offers.
Every rate listed includes the institution’s Safety Grade (A+ to F), Star Rating (1–5), and Texas Ratio, objective financial health metrics calculated from FDIC and NCUA regulatory data, so you can compare yield and institutional safety in one place.
Current top rate: Clinton Savings Bank offers a money market account at 4.50% APY with a minimum deposit of $500. Use the rate table above to compare all current offers in Massachusetts.
How to Find the Best Money Market Rates in Massachusetts
What to compare when shopping for a money market account in Massachusetts
To find the best money market APYs in Massachusetts, start with credit unions and online-only banks: Massachusetts has 25 credit unions in our database, and they consistently offer some of the highest yields because they are member-owned nonprofits with lower overhead than traditional banks.
Always compare the APY (Annual Percentage Yield), not just the interest rate, and pay close attention to balance tiers. Many money market accounts only pay their advertised top rate above a minimum balance of $1,000–$25,000, with lower rates (or monthly fees) below that threshold. The current MA high-yield money market average is 3.060% but top local institutions are offering as high as 4.50%, so shopping around pays off.
Unlike a CD, money market rates are variable. Your rate can change at any time with Federal Reserve policy. Also check check-writing and debit card limits: most MMAs allow a set number of withdrawals per month, and exceeding the limit can trigger fees. Review your account periodically to ensure your APY remains competitive.
When a Money Market Account Makes Sense
- Emergency fund with flexibility: You get savings-level yields plus limited check-writing and debit access. Massachusetts high-yield money market rates currently average 3.060% APY, far above a typical checking account.
- Larger balances ($10,000+): Many MMAs pay tiered rates that rise with your balance, so bigger deposits often earn more than they would in a standard savings account.
- Parking cash between investments: A high-yield money market account at Massachusetts institutions keeps idle cash working harder while remaining fully accessible.
- You prefer banking locally: 55 institutions in Massachusetts report money market rates to our database.
- No rate lock-in risk: Unlike a CD, your rate moves up with the market if rates rise further.
Consider an Alternative If…
- You want a locked-in, guaranteed return → Massachusetts CD rates
- You don’t need check writing and want a lower minimum → Massachusetts savings rates
- You need daily transaction access → Massachusetts checking rates
Massachusetts Financial Snapshot
Local demographics and economic context for savers . Source: U.S. Census Bureau
17.9% of residents are 65 or older, in line with the national average of 17.3%. At today’s MA high-yield money market average of 3.060%, saving 10% of the local median salary ($5,723/year) would earn an additional $175 annually in interest.
Data: U.S. Census Bureau and U.S. Bureau of Labor Statistics.
Money Market Accounts vs. Other Massachusetts Options
How money market deposit accounts compare to other deposit products available at banks and credit unions in Massachusetts.
| Feature | Money Market | High-Yield Savings | Standard Savings | CD (12-Month) |
|---|---|---|---|---|
| Current MA Avg APY | 3.060% | View Savings Rates | 0.732%(Standard MMA) | View CD Rates |
| Rate Type | Variable | Variable | Variable | Fixed for term |
| FDIC / NCUA Insured | ✓ Up to $250K | ✓ Up to $250K | ✓ Up to $250K | ✓ Up to $250K |
| Withdraw Anytime | ✓ Yes | ✓ Yes | ✓ Yes | ✗ Penalty applies |
| Check Writing | ✓ Often yes | ✗ No | ✗ No | ✗ No |
| Debit / ATM Card | ✓ Often yes | Some institutions | ✗ Rarely | ✗ No |
| Typical Min Deposit | $0 – $2,500 | $0 – $100 | $25 – $100 | $500 – $1,000 |
| Rate Risk | Variable, moves with Fed policy | Variable, moves with Fed policy | Variable, moves with Fed policy | None, locked for term |
| Best For | Active savers wanting flexibility + check writing | Emergency fund, short-term goals, parking cash | Everyday saving, low-balance accounts | Locking in a rate for a defined period |
APY data reflects Massachusetts averages tracked in our database as of September 22, 2026. Rates are variable and may differ by institution. See individual product pages for full details.
Massachusetts Money Market Account Calculator
See how much a money market account can earn you. Enter your deposit, monthly contribution, and time frame, or click any current Massachusetts rate on the right to apply it instantly. Interest compounds monthly.
Assumes monthly compounding and a constant APY for the full period. Money market rates are variable and can change at any time, so actual earnings will differ. Estimates are for informational purposes only.
Money Market & Savings Calculators for Massachusetts
At MA’s top money market rate of 4.50% from Clinton Savings Bank, a $10,000 deposit earns $450 annually. Enter your balance to see your exact return.
Savings Goal CalculatorA 3-month emergency fund for the median Massachusetts earner is roughly $14,300. At 3.060% APY in a money market account, saving $1,190/month gets you there in about 12 months. Set your target and see your exact timeline.
CD vs. Liquid Deposit AccountMassachusetts’s high-yield money market average is 3.060% APY, variable, always accessible, and often with check-writing. A local CD may offer a higher fixed yield in exchange for locking in your deposit. Compare both side-by-side to find the better fit for your timeline.
Budget CalculatorBefore you can grow your savings, you need to know how much you can set aside each month. The median Massachusetts earner makes $57,232/year. Track your income vs. expenses to find your monthly surplus, then put it to work at 3.060% APY.
Retirement PlannerA $25,000 money market balance earning 3.060% APY grows to roughly $45,682 over 20 years with compounding. See how your current savings trajectory lines up with your retirement income needs.
Methodology & Data Sources
Independent, Free, and Unbiased Rate Comparisons: MonitorBankRates.com is an independent rate comparison service. Our Massachusetts money market rate tables are free for consumers to use, and we do not receive payment from any financial institution to be included or to be ranked in any particular order. Listings are based solely on the rates each institution publicly advertises on its own website.
A Note on Third-Party Rate Tools: Some pages on our site also feature rate comparison widgets and tools provided by third-party partners. These tools may include sponsored listings or affiliate links, and we may receive compensation when users click through them. We clearly label these widgets so you can tell at a glance which rates come from our independent MonitorBankRates.com tables and which come from our advertising partners.
Direct-Sourced & Verified Money Market Rate Data: We aggregate money market deposit account rates for Massachusetts directly from the official websites of banks and credit unions using our proprietary rate aggregation technology and a dedicated team of rate updaters. Every money market rate displayed on MonitorBankRates.com is highly accurate and trustworthy.
Local, Regional, and National Coverage: Our systems constantly monitor the market to provide a complete picture of available yields in Massachusetts. We feature a comprehensive mix of institutions from neighborhood credit unions and mid-sized regional banks to large national institutions available to savers in MA.
Daily Updates & Time-Stamped Accuracy: Our rate updaters verify and update money market rates daily. Because MMA yields can fluctuate rapidly based on market conditions, every product listed features its own specific “last updated” date, giving you complete transparency.
Frequently Asked Questions about Money Market Accounts in Massachusetts
What is a Money Market Account (MMA)?
Are Money Market accounts in Massachusetts safe?
How often do MMA rates change in Massachusetts?
Can I write checks from a Money Market Account?
How much do I need to deposit to open a money market account in Massachusetts?
Can I lose money in a Money Market Account?
What is the difference between a Money Market Account and a Money Market Fund?
Do I have to pay taxes on money market account interest?
Are online banks better than local banks in Massachusetts for money market accounts?
Best Money Market Rates in Massachusetts
- Clinton Savings Bank
Tiered Money Market Account: 4.50% APY - Bank5 Connect
Connect Money Market: 4.00% APY - Workers Federal Credit Union
Signature Money Market Checking: 3.85% APY - Liberty Bay Credit Union
Business Money Market: 3.75% APY - Rockland Federal Credit Union
Money Market: 3.55% APY
Massachusetts Rates & Resources
Cities in Massachusetts
