Cambridge Savings Bank Bank Bonuses
Every Cambridge Savings Bank bonus below is pulled from our tracked deals database — exact requirements, deadlines, and closing rules, verified against the bank's own offer terms.
Best current offer: $800 (checking) · Total cash to float across all Cambridge Savings Bank deals: $30,000
Personal accounts
Open a new personal checking account (not Simple Checking for Students), $10 min opening deposit, between 5/1/26-9/30/26; no CSB personal checking in the last 12 months · Enroll in eStatements through CSB Online or Mobile Banking within 30 days of account opening/funding · Receive $2,500+ in cumulative direct deposits in each of the first 3 full calendar months after opening/funding ($500 component) · Maintain a minimum average monthly balance of $5,000 for the first 3 full calendar months after opening/funding ($500 component) · Complete 10+ debit card purchases of $10+ each per month for up to 12 months -- pays $25/qualifying month, up to $300 total ($300 component)
Available nationwide
Expires Sep 30, 2026 · Verified Jul 21, 2026
Open a new Relationship High-Yield Money Market account (as little as $1) between 5/1/26-9/30/26 — must not have had a CSB personal savings or money market account in the last 12 months · Enroll in eStatements within 30 days of account opening · Maintain a $25,000+ average monthly balance in new money (not already on deposit with CSB) for each of the first 3 full calendar months after the account is opened and funded · Keep the account open — $10/mo maintenance fee waived with a $1,000+ average monthly balance (trivially met given the $25,000 bonus-qualifying balance)
Available nationwide
Expires Sep 30, 2026 · Verified Jul 26, 2026
Tracking one of these? The tracker watches your deadlines and safe-to-close dates. New to bonuses? Start with the guides.