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If you work for a school, hospital, or nonprofit, you probably have a 403(b) instead of a 401(k). Here is how it works, what to watch out for, and how to avoid the costly mistakes most 403(b) participants make.
If you are a teacher, nurse, professor, doctor at a nonprofit hospital, government employee, or work for any tax-exempt organization under Section 501(c)(3) of the tax code, you probably do not have a 401(k). You have a 403(b).
The 403(b) is the retirement plan for public education and nonprofit workers. It works almost identically to a 401(k) in terms of contribution limits, tax benefits, and basic structure. But there are some critical differences, particularly around investment options and fees, that can cost 403(b) participants tens of thousands of dollars over their careers if they are not careful.
This guide covers everything you need to know: how the 403(b) works, where it differs from a 401(k), and how to make the most of it.
The basics: how a 403(b) works
A 403(b) is a tax-advantaged retirement savings plan. The mechanics are the same as a 401(k):
Pre-tax contributions. You contribute a portion of your paycheck before taxes. A $500/month contribution reduces your taxable income by $500/month. In the 22% bracket, you save $110/month in taxes immediately.
Tax-deferred growth. Your investments grow without being taxed each year. No taxes on dividends, capital gains, or interest until withdrawal.
Taxed on withdrawal. When you withdraw in retirement (after age 59.5), you pay ordinary income tax on the withdrawals. Ideally, your tax bracket in retirement is lower than during your working years.
Roth option. Many 403(b) plans now offer a Roth option. Contributions are after-tax (no upfront deduction), but growth and withdrawals are completely tax-free. The same Traditional vs. Roth decision applies here.
Employer match. Some employers match your contributions (common in hospitals and universities, less common in K-12 school districts). If your employer matches, contribute at least enough to get the full match. It is free money, as we explain in our 401(k) guide.
403(b) contribution limits for 2026
The contribution limits are identical to the 401(k):
- Employee contribution: $23,500/year
- Catch-up (age 50+): Additional $7,500/year ($31,000 total)
- Special 403(b) catch-up: If you have 15+ years of service with the same employer, you may be eligible for an additional $3,000/year (up to $15,000 lifetime). This is unique to 403(b) plans and does not exist in 401(k) plans. Check with your plan administrator.
- Total limit (employee + employer): $70,000/year (same as 401(k))
These limits are separate from IRA contributions. You can max out both your 403(b) ($23,500) and a Roth IRA ($7,000) in the same year, for $30,500 in total tax-advantaged retirement savings.
403(b) vs. 401(k): key differences
| Feature | 403(b) | 401(k) |
|---|---|---|
| Who offers it | Schools, nonprofits, hospitals, churches | Private-sector companies |
| Contribution limit | $23,500 (2026) | $23,500 (2026) |
| Employer match | Sometimes (varies) | Common (50-100% on first 3-6%) |
| Investment options | Often annuities + limited mutual funds | Usually mutual funds + index funds |
| Fees | Often higher (annuity fees 1-2%+) | Varies (index options often 0.03-0.15%) |
| Vesting | Often immediate | Often 3-6 year vesting schedule |
| Loans | Available | Available |
| 15-year catch-up | Yes ($3,000 extra/year) | No |
| ERISA protection | Sometimes exempt | Always covered |
The two biggest practical differences are investment options and fees.
The 403(b) fee problem (this is critical)
Here is where many 403(b) participants get hurt: the investment options in 403(b) plans are often significantly worse than typical 401(k) plans.
Many 403(b) plans, particularly in K-12 school districts, are dominated by annuity products from insurance companies like TIAA, Equitable (formerly AXA), Valic, Lincoln Financial, and others. These annuity products charge:
- Mortality and expense (M&E) fees: 0.50 to 1.50% per year
- Administrative fees: 0.10 to 0.30% per year
- Underlying fund fees: 0.50 to 1.00% per year
- Surrender charges: 5 to 8% penalty if you move your money out within the first 5 to 10 years
Total annual fees: 1.50% to 3.00%+. Compare that to a 401(k) with a Vanguard S&P 500 index fund at 0.03%.
The cost of high fees over a career:
A teacher who contributes $500/month for 30 years at 7% returns with a 0.03% fee ends up with roughly $567,000.
The same teacher with the same contributions at 7% returns but a 1.50% fee (typical annuity product) ends up with roughly $419,000.
The fee difference costs $148,000. That is a full 3 to 4 years of retirement income, lost to fees.
According to the 403bwise.org advocacy group, which tracks 403(b) plan quality, many school district plans offer only high-fee annuity products with no low-cost index fund options. This is a systemic problem that disproportionately affects teachers and public-sector workers.
How to get the best investments in your 403(b)
Check if your plan offers a low-cost option
Some 403(b) plans include TIAA or Fidelity index fund options alongside the annuity products. Look for:
- TIAA-CREF Lifecycle Funds (target-date funds, 0.25 to 0.40% fees, not great but better than annuities)
- Vanguard or Fidelity index funds (if your plan offers them, use them exclusively)
- Any fund with “index” in the name and fees under 0.20%
If your plan offers both annuity products and index funds, choose the index funds. Do not let a plan representative (who earns commissions on annuity sales) steer you toward annuity products.
Request better options
If your plan only offers expensive annuity products, advocate for better options. Some approaches:
- Ask your HR department or school board to add a low-cost vendor (Vanguard, Fidelity, or Schwab) to the approved vendor list.
- Connect with 403bwise.org for resources and advocacy tools.
- Some states have passed legislation requiring 403(b) plans to include at least one low-cost index fund option.
Use your Roth IRA as your primary investment account
If your 403(b) options are all high-fee, consider this strategy:
- Contribute to your 403(b) only up to the employer match (if any).
- Max out your Roth IRA ($7,000/year) with low-cost index funds at Fidelity, Schwab, or Vanguard.
- If you can save more after maxing the Roth IRA, increase 403(b) contributions (even in a high-fee plan, the tax deduction still has value).
The tax deduction on 403(b) contributions is valuable even with higher fees. But if the fees are 2%+, the tax benefit is partially eaten by the fees. The Roth IRA at 0.03 to 0.08% fees preserves more of your returns.
TIAA: the most common 403(b) provider
TIAA (Teachers Insurance and Annuity Association) is the largest 403(b) provider, serving most universities and many school districts. TIAA products range from good to mediocre:
TIAA Traditional Annuity: A guaranteed interest account (currently roughly 3 to 4% guaranteed, sometimes higher with additional credits). This is unique to TIAA and has no equivalent in the 401(k) world. The guaranteed rate makes it a good bond alternative for conservative investors. However, it has liquidity restrictions (you cannot withdraw the full balance quickly).
TIAA-CREF Lifecycle Funds: Target-date funds at 0.25 to 0.40% fees. Decent but more expensive than Vanguard (0.08%) or Fidelity (0.12%) target-date funds. If these are your best option, they are acceptable.
TIAA-CREF Index Funds: Some TIAA plans offer pure index funds at 0.05 to 0.10%. If available, these are your best bet within TIAA.
TIAA Real Estate Account: A unique fund that invests in actual real estate properties. Returns have been 7 to 9% historically, providing real estate exposure that is different from publicly traded REITs. Limited liquidity.
The variable annuity products: These are the expensive ones (1%+ fees). Avoid them if index fund alternatives are available.
403(b) rollover options
When you leave your employer (new job, retirement), you can roll your 403(b) into:
A new employer’s 403(b) or 401(k): If the new plan has good investment options, this simplifies your accounts.
A Rollover IRA: Move the money to a Traditional IRA at Fidelity, Schwab, or Vanguard. You gain full control over investment options and can choose the cheapest index funds. Same process as a 401(k) rollover.
A Roth IRA (via Roth conversion): You can convert your 403(b) to a Roth IRA. You pay income tax on the converted amount in the year of conversion, but the money then grows tax-free forever. This can make sense if you are in a low-income year (between jobs, early retirement).
Watch for surrender charges. If your 403(b) is in an annuity product with surrender charges, check the schedule before rolling over. Surrender charges decrease each year and typically disappear after 7 to 10 years. If you have 2 years left on a surrender schedule, it might be worth waiting to avoid a 3 to 5% penalty.
Important for backdoor Roth users: A 403(b) rollover to a Traditional IRA creates a pre-tax IRA balance that triggers the pro rata rule. If you plan to do backdoor Roth conversions, roll the 403(b) into your new employer’s 401(k) or 403(b) instead of an IRA.
Strategies for teachers and nonprofit workers
Teachers
Teachers typically have lower salaries and longer careers (30+ years). The combination of a modest salary and a potentially high-fee 403(b) makes fee optimization especially critical.
Priority order:
- Contribute to 403(b) up to employer match (if any)
- Max Roth IRA ($7,000/year) at a low-cost brokerage
- Increase 403(b) contributions (choose the lowest-fee options available)
- If your state has a 457(b) plan for government employees, you may be able to contribute to both the 403(b) and 457(b) ($23,500 each, $47,000 total). This is a powerful double-dip unique to public-sector workers.
Many teachers also have a pension (defined benefit plan). Your pension combined with Social Security may cover basic retirement expenses, allowing your 403(b) and Roth IRA to fund extras and provide flexibility. Do not skip the 403(b) just because you have a pension.
Hospital and university employees
Hospital and university 403(b) plans tend to have better options than K-12 plans. TIAA is common, and many offer Vanguard or Fidelity index fund options. Check your plan’s fund lineup and choose the cheapest broad-market index fund available.
University employees often receive generous employer contributions (5 to 10% of salary) that vest immediately. This is effectively a guaranteed return. Max out enough to capture the full employer contribution, regardless of the fund options.
Frequently asked questions
Can I have a 403(b) and a 401(k) at the same time? If you work for two employers simultaneously (one offering a 403(b) and one offering a 401(k)), the $23,500 contribution limit is shared across both plans. You cannot put $23,500 in each.
Is a 403(b) as good as a 401(k)? The tax benefits are identical. The difference is in investment options and fees. A 403(b) with low-cost index funds is just as good as a 401(k) with low-cost index funds. A 403(b) with only high-fee annuity products is significantly worse.
Should I contribute to my 403(b) if the fees are high? Yes, but only up to the employer match first. Then max your Roth IRA at a low-cost brokerage. If you can save more after that, increase 403(b) contributions. The tax deduction is valuable even with higher fees, especially in higher tax brackets.
What is the difference between a 403(b) and a 457(b)? A 457(b) is another retirement plan available to government and some nonprofit employees. The key advantage: no 10% early withdrawal penalty before age 59.5 (unlike 403(b) and 401(k)). If you have access to both, you can contribute $23,500 to each ($47,000 total), and withdraw from the 457(b) penalty-free at any age after separation from service.
Can I do a Roth conversion on my 403(b)? Yes. Many 403(b) plans offer in-plan Roth conversions, and you can always convert when you roll over to an IRA after leaving the employer. You pay income tax on the converted amount.
I am a teacher with 20 years of service. Can I use the special 15-year catch-up? If you have 15+ years of service with the same employer and have contributed less than $5,000/year on average over your career, you may qualify for an additional $3,000/year in contributions (up to $15,000 lifetime). Check with your plan administrator or review IRS guidelines on 403(b) contributions.
The bottom line
Your 403(b) is a powerful retirement savings tool with the same tax benefits as a 401(k). The contribution limits, tax deductions, and Roth options are identical. The challenge is navigating the often-inferior investment options and higher fees that plague many 403(b) plans, especially in K-12 education.
Your action plan: check your plan’s fund lineup today. If low-cost index funds are available (under 0.20% expense ratio), use them. If your only options are annuity products at 1.5%+, contribute up to any employer match, then prioritize your Roth IRA for additional retirement savings. Advocate for better plan options through your HR department or school board.
The difference between a 0.10% and a 1.50% fee over a 30-year teaching career is $100,000 to $150,000 in lost retirement savings. That number is too large to ignore.
Open a Roth IRA to complement your 403(b)