Updated 17 April 2026
403(b) vs 401(k) in 2026
Same tax rules. Often wildly different fees. Here is what nobody tells teachers and nurses about their retirement plan.
If you work for a nonprofit, school, or hospital, you have a 403(b). If your employer offers only annuity-based products, your plan may cost you $100,000 or more over your career. Here is how to tell and what to do about it.
Career cost gap
$267,000
Lost to fees over 30 years
2% fees vs 0.1% fees at 7% return
$50K starting balance + $500/month
$50K invested, 7% annual return, $500/month contribution
At a glance: 403(b) vs 401(k)
Full comparison →| Feature | 403(b) | 401(k) |
|---|---|---|
| Offered by | Nonprofits, schools, hospitals, religious orgs | For-profit companies |
| 2026 contribution limit | $23,500 | $23,500 |
| Catch-up (age 50+) | $7,500 | $7,500 |
| Enhanced catch-up (ages 60-63) | $11,250 | $11,250 |
| Special catch-up | 15-year rule: +$3,000/year (lifetime $15K cap) | None |
| Typical fees | 0.1-3% depending on provider | 0.03-1% depending on plan |
| Investment menu | Annuities + mutual funds (often limited) | Mutual funds, ETFs, target-date funds |
| Roth option | Available at most employers | Available at most employers |
Watch out for these providers
If your 403(b) provider is AXA Equitable, Voya, Lincoln Financial, VALIC, or Equitable Financial, you are likely in an annuity contract with 1.5-3% all-in annual costs. That is 10 to 30 times more expensive than a low-cost index fund.
Fee impact calculator
Enter your own numbers to see your personal cost gap. Default values produce the $267K headline figure.
High-fee plan (2.0%)
$639,517
Low-fee plan (0.1%)
$991,984
You keep
$352,468 more
Assumes 7% annual return before fees. Monthly compounding. For illustration only.
Open full calculator with scenario presets and shareable URL.
The 15-year rule: a 403(b)-only advantage
If you have 15+ years of service at the same qualifying employer, you can contribute an extra $3,000/year to your 403(b), up to a $15,000 lifetime cap. This does not exist in the 401(k).
Full eligibility guide →2026 max for age 50+, 15+ yrs
If your employer offers both plans
Hospitals, universities, and large nonprofits sometimes offer both a 403(b) and a 401(k). The decision rule is simple: compare the investment options and fees. The cheaper plan with index funds usually wins. Get every employer match before making that choice.
Decision framework with worked examples →