Small Business Deposit Rates
Rates effective as of October 1, 2026
All rates are subject to change without notice.
| Account Type | Interest Rate | Annual Percentage Yield | Minimum Deposit to Open | Minimum Daily Balance to Earn APY |
|---|---|---|---|---|
| IOLTA Checking Account | 2.20% | 2.22% | $0 | $0 |
| Small Business Money Market Account | 0.45% | 0.45% | $1 | $10.00-$5,000,000 |
| Small Business Money Market Account | 0.99% | 1.00% | $1 | ≥$5,000,000.01 |
| Escrow Management Subaccount | 0.15% | 0.15% | $10 | $1 |
| Account Type | Earnings Credit Rate | Minimum Deposit to Open |
|---|---|---|
| Analyzed Business Checking Account | 0.30% | $10 |
1Fees may reduce earnings. For more information, please refer to our Business Account Fee Schedule and Understanding Your Business Account Handbook.
2Business must be registered in Massachusetts, New Hampshire, or Maine.
| Product | Interest Rate | Annual Percentage Yield | Minimum Deposit to Open | Minimum Daily Balance to Earn APY |
|---|---|---|---|---|
| 3 months | 3.20% | 3.25% | $1,000 | $10 |
| 6 months | 2.95% | 3.00% | $1,000 | $10 |
| 9 months | 3.20% | 3.25% | $1,000 | $10 |
| 1 year | 2.71% | 2.75% | $1,000 | $10 |
| 2 year | 2.71% | 2.75% | $1,000 | $10 |
| 3 year | 2.22% | 2.25% | $1,000 | $10 |
| 5 year | 1.98% | 2.00% | $1,000 | $10 |
| Product | Interest Rate | Annual Percentage Yield | Minimum Deposit to Open | Minimum Daily Balance to Earn APY |
|---|---|---|---|---|
| 19 months | 3.92% | 4.00% | $1,000 | $10 |
| Product | Interest Rate | Annual Percentage Yield | Minimum Deposit to Open | Minimum Daily Balance to Earn APY |
|---|---|---|---|---|
| 4 months | 3.78% | 3.85% | $1,000 | $10 |
| 10 months | 4.02% | 4.10% | $1,000 | $10 |
1Fees may reduce earnings. For more information, please refer to our Business Account Fee Schedule and Understanding Your Business Account Handbook.
2Business must be registered in Massachusetts, New Hampshire, or Maine.
3The APY is based on monthly compounding with funds held to maturity. Additional deposits to CDs are not permitted. All CDs are available in Retirement Plans with a $500 opening deposit. Substantial penalties for early withdrawals may be imposed. Withdrawals and penalties may reduce earnings. For more information, please refer to our Business Account Fee Schedule, and Understanding your Deposit Account for Business Accounts Handbook.
4 For more information, please refer to the CD Special disclosure.
5This CD special includes a one-time option to bump your rate to a higher rate currently offered for this exact same term; the new rate is effective the business day you initiate the “bump up” request and applies to the remaining term. This bump-up feature is not automatic, must be initiated by you, and can only be used once.
6 These CD Specials are available for new money only, not currently on deposit with CSB.