Compare Bank & Credit Union Rates
Best CD rates in Groton, CT
Compare published certificate yields with their terms, opening minimums, requirements, collection dates and original sources.
Top CD rates
Showing 1–11 results in Groton, CT
- 4.30%APY$357 over 10 months on $10,000intro rate
Requirements
Product: Certificates renew automatically with a 10-day grace period. Early withdrawal penalties: 90 days dividends for terms 1 year or less; 182 days dividends for terms from 1 year up to 2 years; 365 days dividends for terms greater than 2 years. Interest is compounded and paid monthly. Must be a Waypoint member.
Offer: Special rate effective September 28 – October 16, 2026. Valid for new and/or existing money. Minimum balance $1,000; maximum $100,000. Limited to one special share certificate per SSN.
Promotional rate · 4.22% interest rate · Balance cap $100,000 · Effective Sep 28, 2026
Rate checked
More details - 4.25%APY$461 over 13 months on $10,000intro rate
Requirements
Product: Early withdrawal penalty applies. Minimum opening deposit $500; minimum balance to earn APY $500. Maximum deposit $250,000.00. Account owner under 16 must be joint with parent/guardian. Fees could reduce earnings.
Offer: 13-Month CD Special. Promotional rate is for consumer accounts only; not available for trusts or IRA CDs. Automatically renews to a 1-Year CD at maturity. Maximum deposit $250,000.00. Early withdrawal penalty applies.
Promotional rate · 4.17% interest rate · Balance cap $250,000 · Effective Oct 14, 2026
Rate checked
More details - America's First Network Credit UnionShare CertificatesCD · 15 months · $500 min
Credit union · 1 branch
4.25%APY$534 over 15 months on $10,000intro rateRequirements
Offer: Limited time certificate special
Promotional rate · 4.18% interest rate · Effective Oct 1, 2026
Rate checked
More details - 3.85%APY$583 over 18 months on $10,000with conditions
Requirements
Product: Requires an eligible/qualifying M&T Bank checking account (such as MyChoice Premium Checking, M&T Select, M&T Select With Interest, Power Checking, or Advantage Checking). Maximum deposit is $1,000,000 per account ($750,000 if opened online). Minimum balance to obtain APY is $1.00. Early withdrawal penalties apply.
Offer: Requires a qualifying checking account. Maximum deposit is $1,000,000 ($750,000 if opened online). Minimum balance to obtain APY is $1.00.
Qualified rate · 3.78% interest rate · Balance cap $1,000,000 · Effective Jul 30, 2026
Rate checked
More details - 3.75%APY$217 over 7 months on $10,000
Requirements
Product: At maturity, automatically renews into a 3 Month Flexible CD at a lower interest rate unless changed during 7-day grace period. Online opening limit is $250,000.
3.69% interest rate · Effective Oct 5, 2026
Rate by balance
Rate by balance for Featured CD Balance APY Up to $9,999 3.75% $10,000 – $99,999Your amount 3.75% $100,000 – $999,999 4.11% $1,000,000 and up 4.11% Rate checked
More details - 3.30%APY$164 over 6 months on $10,000with conditions
Requirements
Product: Rates current as of 9/18/2026. Must be OWNER on a Beacon Bank checking account. Balance cannot exceed $1,000,000. APY is variable and subject to change. Early withdrawal penalty may apply.
Offer: Promotional rate valid for 6-month term. Must be an OWNER on a Beacon Bank checking account. Cannot make additional deposits before maturity.
Qualified rate · Balance cap $1,000,000 · Effective Sep 18, 2026
Rate checked
More details - 3.30%APY$219 over 8 months on $10,000with conditions
Requirements
Product: Minimum deposit requirement of $1,000 to open a CD. Penalty for early withdrawal.
Offer: Requires linked qualifying Chase checking account.
Qualified rate · 3.25% interest rate · Effective Oct 16, 2026
Rate by balance
Rate by balance for Certificate of Deposit Balance APY Up to $9,999 3.30% $10,000 – $99,999Your amount 3.30% $100,000 and up 3.80% Rate checked
More details - 3.15%APY$315 over 1 year on $10,000
Requirements
Product: A penalty of 7 days interest will be imposed for early withdrawals within the first 6 days of the account term or following any partial withdrawal. Automatically renews into a 3 Month Flexible CD at maturity unless changed during 7-day grace period. Online opening limit is $250,000.
3.11% interest rate · Effective Oct 5, 2026
Rate by balance
Rate by balance for Flexible CD Balance APY Up to $9,999 3.15% $10,000 – $99,999Your amount 3.15% $100,000 – $999,999 3.65% $1,000,000 and up 3.65% Rate checked
More details - 0.55%APY$278 over 60 months on $10,000with conditions
Requirements
Product: A penalty may be imposed for early withdrawal. Fees may reduce earnings. Additional deposits not permitted.
Offer: Relationship Offering. Early withdrawal penalty 540 Days. Additional deposits no.
Qualified rate · 0.55% interest rate · Effective Aug 25, 2026
Rate checked
More details - 0.05%APY$2 over 6 months on $10,000with conditions
Requirements
Product: CD ladders are a group of four CDs opened at the same time for the same amount with different terms, with a minimum of $1,000 in each CD. A linked Chase Private Client Checking account is required.
Offer: 12-month CD ladder relationship rate. Requires linked Chase Private Client Checking account.
Qualified rate · 0.02% interest rate · Effective Oct 16, 2026
Rate by balance
Rate by balance for CD Ladder Balance APY Up to $9,999 0.02% $10,000 – $99,999Your amount 0.05% $100,000 and up 0.05% Rate checked
More details - 0.03%APY
Requirements
Product: Fixed rate account. Applicable rate paid until CD matures. Online opening limit is $250,000. Early withdrawal penalty applies.
Offer: Term: 6-11 Months. Balance tier: Less than $10,000.
0.03% interest rate · Effective Oct 5, 2026
Rate checked
More details
Carrot Score rates each institution on all its CD, savings, auto loan and credit card rates, not just the account shown. How we rank
What CDs pay in Groton, CT
127 CDs at 8 banks and credit unions · checked Oct 4–22
- Typical
- 0.30%
- Top 10% from
- 3.17%
- Banks, typical
- 0.15%
- Credit unions, typical
- 2.25%
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Norwich, CT metro
Top Carrot institutions
Ranked across their CDs, savings, auto loans and credit cards. How scores work
- CSE Credit UnionCredit union · 1 branch
- Navy Federal Credit UnionCredit union · 3 branches
- Liberty BankBank · 9 branches