Deciding whether to purchase a certificate of deposit from a traditional bank or a credit union depends on your personal banking preferences, membership eligibility, and rate priorities, as both institutions offer secure, federally insured savings vehicles up to standard statutory limits through the FDIC or NCUA. Credit unions are member-owned, non-profit cooperatives, which frequently allow them to pass higher interest yields and lower fee structures back to their members, potentially making them more lucrative for yield-seeking savers. On the other hand, major commercial banks often provide superior digital banking applications, seamless mobile management tools, wider geographic branch networks, and specialized account tiers. Evaluating specific maturity terms, early withdrawal penalties, minimum deposit requirements, and current promotional rate offerings across both institutional types will help determine the best fit for your financial portfolio.