1Receive up to $1,200 when you meet the following requirements:
$500 CHECKING BONUS—To qualify for this bonus:
• Open a new personal checking account (excluding Simple Checking for Students) with a $10 minimum opening deposit during the promotional period (May 1, 2026 through September 30, 2026). You must not currently have a CSB personal checking account or have had one in the last 12 months.
• Enroll in eStatements through CSB Online or Mobile Banking within 30 calendar days following the date the new account is opened and funded.
• Receive cumulative monthly direct deposits totaling $2,500 or more within each of the first 3 full calendar months following the date the new account is opened and funded. For example, a qualifying account type opened and funded during the month of May must complete the requirements in the months of June, July, and August to qualify for the bonus. Qualifying direct deposits include payroll, pension, and/or government benefits made electronically via ACH. Person-to-person transfers, internal transfers, and deposits made at a branch, ATM, or via mobile deposit do not qualify.
• Maintain a minimum average monthly balance of $5,000 for the first 3 full calendar months following the date the new account is opened and funded.
Payout: The one-time $500 bonus will be credited within 2 months of the end of the qualification period. For example, if the account is opened and funded in May, the qualifying months are June, July, and August, and the bonus will be paid by October 31.
Additional Information: Fees may reduce earnings. Minimum balance to obtain the APY is $10. All bonuses will be reported to the IRS as interest. Please refer to CSB Understanding Your Deposit Account for Personal Accounts Handbook, Personal Account Fee Schedule, and Personal Account Rate Sheet for account details. The Performance Plus Checking Account has a 0.10% Annual Percentage Yield (APY). APY is accurate as of 7/1/2026. Rate is variable and may change after account opening.
$300 RECURRING DEBIT CARD TRANSACATION BONUS—To qualify for this bonus:
• Complete at least 10 qualifying debit card purchases using your CSB Debit Mastercard® within each of the first 12 calendar months following the date the new account is opened and funded.
• Each qualifying transaction must be at least $10.
• ATM transactions, cash advances, and person-to-person transfers do not qualify.
• Transactions must post to the account during the calendar month to qualify.
Payout: The recurring bonus will be paid at $25 per qualifying month, for a total of up to $300 over 12 months. If monthly qualifying debit card purchase transaction requirements are not met in a given month, no bonus will be paid for that month.
Additional Information: All bonuses will be reported to the IRS as interest. Mastercard is a registered trademark, and the circles design is a trademark of Mastercard International Incorporated.
$400 RELATIONSHIP HIGH-YIELD MONEY MARKET BONUS—To qualify for this bonus:
• Open a new Relationship High-Yield Money Market account during the promotional period (May 1, 2026, through September 30, 2026) with a minimum opening deposit of $1 ($100 for Retirement Accounts). You must not currently have a CSB personal savings or money market account or have had one in the last 12 months.
• Maintain a minimum average monthly balance of $25,000 for the first 3 full calendar months following the date the new account is opened and funded.
• The deposit(s) used to qualify for the bonus must be new money, not currently on deposit with CSB.
Payout: The one-time $400 bonus will be credited within 2 months of the end of the qualification period. For example, if the account is opened and funded in May, the qualifying months are June, July, and August, and the bonus will be paid by October 31.
Additional Information: Retirement accounts cannot be opened online. This is a variable rate tiered account, and rates may change after the account is opened. Fees may reduce earnings. Interest is not paid on account balances below $10. All bonuses will be reported to the IRS as interest. We may limit the number of preauthorized, automatic, telephone, facsimile, and computerized transfers from statement savings accounts and money market accounts to other accounts of yours or to third parties to six per calendar month. For more information, please refer to CSB Understanding Your Deposit Account for Personal Accounts Handbook, RHYMM Disclosure, and Personal Account Fee Schedule for full account details.
Rates are accurate as of 7/1/2026.
Minimum Balance to Earn Annual Percentage Yield (APY)
• $10 - $9,999.99: 1.24% Interest Rate, 1.25% APY
• $10,000 - $49,999.99: 1.48% Interest Rate, 1.50% APY
• $50,000 - $249,999.99: 1.93% Interest Rate, 1.95% APY
• $250,000 - $999,999.99: 2.42% Interest Rate, 2.45% APY
• ≥ $1,000,000: 2.71% Interest Rate, 2.75% APY
Unlock bonus rate with a Performance Plus Checking Account. See RHYMM disclosure for additional details and rates.
Additional Terms for all Three Offers
• Bonuses may be combined if all applicable requirements are met for each offer on a per customer basis.
• Accounts must be open and in good standing throughout the qualification period and at the time of bonus payout.
• Offer may be withdrawn or modified at any time without notice.
• Offer current at the time of account opening will be honored. Other restrictions may apply.
• You must live or work in Massachusetts or New Hampshire. If you live or work in Maine, please visit a branch or call us.
2Please note when traveling abroad you must submit all ATM receipts for refunds.
3Waive with $1,000 average monthly balance OR $2,500 in combined average monthly checking, savings, money market, CD, and IRA balances.
4Waive with $10,000 in combined average monthly checking, savings, money market, CD, IRA, and consumer loan balances (Excluding mortgage balances)
5The Annual Percentage Yield (APY) and Interest Rate is 0.10%, accurate as of 7/1/2026. $10 minimum daily balance required to earn APY. This is a variable rate account and rates may change after account is opened. Fees may reduce earnings.
6Eligible for bonus rate on Relationship High-Yield Money Market Account. Click to view current rates.
Mastercard is a registered trademark, and the circles design is a trademark of Mastercard International Incorporated.
