EB Checking
Exclusively for Electric Boat Employees for new and current members.
Designed with the hardworking team at Electric Boat in mind, our EB Checking Account gives you more than just a place to manage your money — it rewards you for all the work you do in a high yield 3.00% APY*.
Built for convenience, value, and financial momentum, EB Checking is the smart way for Electric Boat employees to bank. Start your financial journey with benefits that work as hard as you do.
Open your account today and take advantage of exclusive member benefits, including:
- 3.00% APY* on your checking balance — earn more on the money you use every day
- $200 Cash Bonus¹ just for getting started
- ATM Rebates² so you can access your cash with confidence, wherever your day takes you
All accounts come with our digital suite. Learn More >
Other EB Checking Account Benefits
$475 Fee Rebate**
**Origination fee of $475, if applicable, will be rebated at closing to General Dynamics Electric Boat employees working at the Groton, CT or Quonset Point North Kingstown, RI locations. Proof of employment is required. Eligible properties include 1-4 family dwellings and approved condominiums in Connecticut and Rhode Island only. Offer does not include the refinancing of existing Charter Oak mortgages. All other fees and closing costs apply. Offer may be withdrawn at any time.
$50 Gas Card***
***A pre-paid $50 gas card is provided to General Dynamics Electric Boat employees working at the Groton, CT or Quonset Point, RI locations who are Charter Oak Federal Credit Union members who finance a new or used car directly with Charter Oak Federal Credit Union. Proof of employment is required. This offer does not apply to the refinancing of an existing auto loan with Charter Oak Federal Credit Union. Application may be taken at any branch or by the Contact Center. All terms and conditions can change at any time.
Free Consultation
Meet with one of our experienced consultants for retirement and investments services.
* APY = Annual Percentage Yield
1. The one-time $200 bonus will be awarded after the account has met required conditions for three consecutive months within a six-month period from account opening. This offer applies to new memberships or existing memberships that qualify for the account with a new direct deposit. The $200 Bonus is considered dividends and will be reported on IRS Form 1099-INT. This offer may be withdrawn at any time.
2. The EB Checking Account is a “Split Rate Tiered” account for General Dynamics Electric Boat employees who qualify for membership. Proof of employment may be required. 3.00% APY is paid on balances up to $10,000. Balances over $10,000 earn 0.25% APY. All Charter Oak foreign ATM fees will be rebated. Surcharge fees charged by other financial institutions or networks will be rebated up to $9.99 each to a maximum of $20 a month and rebated at the end of the month. The default APY of 0.05% will be applied to all tiered balances if account conditions are not met and ATM fees will not be rebated. Rates are variable and can change at any time. To earn the stated APYs your account must have e-Statement, Online Banking, 10 Debit Card transactions posted per month (excluding ATM transactions) and have a Direct Deposit of $2,000 or more posted in each calendar month. Existing checking accounts are not transferrable to an EB Checking Account. Existing members may open a new EB Checking Account under their existing account and must meet the account conditions to qualify. Only one EB Checking Account, Sun Checking Account or Go Checking Account per qualified member number. APY effective May 15, 2023. This offer may be withdrawn at any time.
Rates Effective December 7th, 2025