100–499 participants · 403(b) Retirement Plan Benchmarks

Plan-size benchmark across all industries and states. Sourced from 3,172 Form 5500 filings for plan year 2024.

Headline numbers (2024)

Plans: 3,172
Total assets: $75.9B
Total participants: 717,962
Median expense ratio: 0.17%
Median employer contribution per active participant: $1,670
Median account balance: $51,241
3-year asset growth (2024–2024): —

Expense ratio distribution

25th percentile: 0.06%
Median: 0.17%
75th percentile: 0.40%

Where the fees go (average mix)

Admin / Recordkeeping: 67.3%
Investment Management: 27.5%
Audit: 3.4%
Legal: 0.1%

Employer contribution generosity

Median per active participant: $1,670
Plans with $0 employer match: —

3-year trend

Year	Plans	Assets	Participants	Median fee	Median employer $
2024	3,172	$75.9B	717,962	0.17%	$1,670

Methodology

All metrics are calculated from U.S. Department of Labor Form 5500 annual filings. The slice "100–499 participants · 403(b)" is served from the accepted-generation projection for plan year 2024. Medians use percentile_cont over reported values; zero/null values are excluded from rate-style metrics.

Citation: PlanProvider.Pro, Form 5500 Benchmarks 2024. Free for editorial use with attribution + link to https://planprovider.pro/benchmarks/plan-size/s_100_499-403b.