If you work for a public school, hospital, church, or nonprofit, your retirement plan probably is not a 401(k). So what is a 403b? It is the tax-advantaged workplace retirement account for those employers — same core idea as a 401(k), a slightly different rulebook, and one persistent catch worth knowing before you sign anything.
What changed in 2026
- Contribution limits ticked up again. The IRS indexes limits to inflation. For 2026 the employee 403(b) contribution limit sits around $23,500, with an extra catch-up of roughly $7,500 for those 50 and older. Verify the current figure before you set your payroll deduction — these numbers move most years.
- The SECURE 2.0 super catch-up continues. Workers aged 60 to 63 get an enhanced catch-up (roughly $11,250 in place of the standard one). Confirm your plan actually offers it.
- Fee disclosure keeps improving. Regulators and lawsuits have pushed more 403(b) plans — especially K–12 plans — to add low-cost index options. The old annuity-only menus are shrinking but have not disappeared.
- Roth 403(b) is more common. More plans now offer a Roth bucket, and some auto-enroll new hires. Know your plan's default.
How a 403(b) actually works
Money comes out of your paycheck before (or, for Roth, after) tax and goes into investments you choose from the plan menu. Traditional contributions lower your taxable income now and get taxed on withdrawal; Roth contributions are taxed now and come out tax-free later. Growth is untaxed along the way. You generally cannot withdraw penalty-free before age 59½, and required minimum distributions start at 73.
The historical quirk: 403(b) plans grew out of the insurance industry, so many still offer annuity contracts (a 403(b)(1)) alongside or instead of mutual-fund custodial accounts (a 403(b)(7)). That matters because annuities often carry higher fees and surrender charges.
403(b) vs 401(k): the real differences
For most savers the two plans feel identical. The differences are in the fine print.
| Feature |
403(b) |
401(k) |
| Who offers it |
Nonprofits, schools, hospitals, churches |
For-profit companies |
| 2026 employee limit |
~$23,500 |
~$23,500 |
| Roth option |
Increasingly common |
Common |
| Employer match |
Sometimes (often smaller) |
Common |
| Investment menu |
Annuities and/or mutual funds |
Usually mutual funds/ETFs |
| Special catch-up |
15-year service rule (extra) |
None |
| ERISA protections |
Not always (many are exempt) |
Almost always |
Two lines deserve attention. First, the 15-year rule: if you have worked 15+ years for the same qualifying employer, you may be able to contribute an additional amount beyond the normal limit — useful, but the math is fiddly, so ask HR to confirm your eligibility. Second, ERISA: many church and government 403(b) plans are exempt from ERISA, which means fewer federal protections and, sometimes, a weaker duty to keep fees low. That is exactly why you should check the plan yourself.
The fee trap nobody warns you about
This is the honest part. K–12 teacher 403(b) plans in particular have long been dominated by high-cost annuity products sold by vendors who set up tables at school events. A contract charging 2%+ per year in combined fees can quietly erase a large slice of your lifetime returns compared to a low-cost index fund charging a fraction of that.
Before you enroll, do three things: ask for the full list of approved vendors (there is often more than one), pull the expense ratio and any "mortality and expense" or administrative fee on each option, and look for surrender charges that lock your money in for years. If a plain index fund is available, it is usually the better default.
What to skip
- Skip surrender-charge annuities unless you have a specific, well-understood reason. Locking money behind a multi-year penalty is rarely worth it inside a retirement account.
- Skip cashing out when you change jobs. Roll it into an IRA or your new employer plan instead of taking the tax-and-penalty hit.
- Skip contributing past the match into a bad menu if a cheaper IRA is available — capture the match, then compare.
FAQ
Is a 403(b) as good as a 401(k)?
The tax benefits are essentially the same. The deciding factor is your specific plan's investment quality and fees, not the account type.
Can I have both a 403(b) and an IRA?
Yes. They have separate limits, so many people fund a 403(b) up to the match, then a low-cost IRA, then return to the 403(b).
What happens to my 403(b) if I leave the job?
It stays yours. You can leave it, roll it into an IRA, or move it to a new employer's plan. Roll it rather than cashing out.
Are 403(b) contributions tax-deductible?
Traditional contributions reduce your taxable income automatically through payroll — you do not claim a separate deduction. Roth contributions do not.
Where to go next
Deciding how to split your dollars? Start with 401k vs IRA in 2026 to set your funding order, then read active vs passive investing in 2026 to understand why low-cost index funds usually win inside plans like these. If you are also saving for a child's education, compare your options in the best 529 plans for 2026.