Why Credit Unions Still Beat Most Neobanks on CDs

NCUA-insured credit union share certificates are consistently competitive with the best online-bank CDs.

The credit union rate advantage in CDs (called 'share certificates' in credit union terminology) comes from the same structural source as the online bank advantage: lower overhead and a different profit motive. Credit unions are member-owned cooperatives; profits are returned to members as higher deposit rates and lower loan rates rather than to shareholders.

For CDs specifically, credit unions have historically outpaced neobanks by 10–30 basis points on equivalent terms. As of 15 May 2026, several federal credit unions offer 1-year share certificates at 5.10–5.20% APY — competitive with or above the best online bank CDs at equivalent terms.

The catch: eligibility. You must qualify for membership, which typically requires living, working, or attending school in a specific geography, or being employed by a covered employer. Navy Federal Credit Union, the largest in the U.S., requires military affiliation or a family connection. Alliant Credit Union is open to many Americans through a donation to a partner organisation. Pentagon Federal Credit Union (PenFed) is open to all Americans.

The NCUA insurance — the credit union equivalent of FDIC — covers up to $250,000 per member per credit union per ownership category. It is backed by the National Credit Union Share Insurance Fund, which has maintained its reserves through multiple economic cycles. It is functionally equivalent to FDIC insurance for practical purposes.

For anyone who qualifies for PenFed, Alliant, or a local credit union with competitive rates, the share certificate should be a standard inclusion in the CD comparison. Most rate tables underrepresent credit unions because they do not have affiliate marketing relationships.