Comparison · 2026
TIAA vs Fidelity & Vanguard
The “best” provider depends on what your plan offers and what you value. Here’s the plain comparison.

TIAA vs Vanguard
Vanguard pioneered low-cost indexing and is widely seen as the cost leader; a simple three-fund portfolio there is hard to beat on price. TIAA’s edge is the Traditional Annuity’s guarantee and income options. No need for those? Vanguard is usually the cheaper long-term home for index money.
TIAA vs Fidelity
Fidelity offers very low-cost index funds (including some zero-expense-ratio funds), broad choice and strong support, and like TIAA often runs on-campus sessions. For index-focused educators it generally beats TIAA’s pricier share classes on cost.