Money Market Accounts

Money Market Accounts

You can earn even higher rates while enjoying easy access to your money. Money market accounts have options like no maximum limit and are available for personal, IRA or business accounts. Make your savings work smarter!

Accumulator Money Market

We’ve taken the great rates and protections of a money market account and made them even more accessible. Pair the Accumulator¹ with our GO Checking Account and start growing your savings today!

BalanceAPY*
$0.01 – $2,000.002.50%
$2,000.01 – $6,000.001.50%
$6,000.01 – $10,000.000.50%
> $10,000.000.05%
All Balances (default rate if account conditions are not met)0.05%

Jumbo Money Market

You can earn even higher rates while enjoying easy access to your money. Jumbo Accounts have no maximum limit and are available for personal, IRA or business accounts.

BalanceAPY*
$0.01 – $9,999.990.05%
$10,000.00 – $49,999.990.10%
$50,000.00 – $99,999.990.20%
>= $100,000.000.30%

Frequently Asked Questions

You deposit funds into the account and earn dividends based on the balance tier. Rates may increase as your balance grows, while still allowing withdrawals and transfers.

Money market accounts offer competitive dividend rates, easy access to funds, liquidity, and a safe place to save for short- to mid-term goals.

No. A money market account is a deposit account insured by the NCUA, while a money market fund is an investment product and is not federally insured.

Money market accounts often require a minimum balance to open or to earn the highest dividend rate, though requirements can vary by account type.

Money market accounts often earn higher dividends than standard savings accounts, especially at higher balance tiers.

Yes. Transfers between accounts are typically available through online banking, mobile banking, self service by phone or internal transfers.

Yes. Many people use money market accounts for emergency savings because they combine liquidity with competitive earnings.

Dividends are typically credited monthly, based on the account balance and current APY.

Yes. Deposits in money market accounts are federally insured by the NCUA up to applicable limits.

Yes. Transfers between accounts are typically available through online banking, mobile banking, self service by phone or internal transfers.

*APY = Annual Percentage Yield

1. The Accumulator Money Market Account is a split rate tiered account and will earn the stated APY only for the account balance within each tier. To earn the stated APYs, you must have a GO Checking, SUN Checking or EB Checking Account with a month end balance of at least $100. Failure to meet this requirement will cause the account to earn the “Default APY” of 0.05% across all tiers. (Please visit CharterOak.org or call 860.446.8085 for GO Checking, SUN Checking or EB Checking Account information.) Limit of one Accumulator Money Market Account per Social Security or Tax Identification Number. The Accumulator Money Market Account is a variable rate account and the rates can change at any time.

Rates Effective April 16th, 2026