Updated August 3, 2026. Quick answer: a 403(b) is on the 4974(c) list, so the 10% early-withdrawal tax does apply before 59½ unless an exception fits. That is the single biggest difference from the 457(b) sitting next to it in the same benefits package, and it catches people who assume the two work alike.
Why the penalty applies here
Section 4974(c) defines “qualified retirement plan” to include “an annuity contract described in section 403(b)”, and 72(t)(1) imposes the 10% additional tax on distributions from exactly those plans. So a 403(b) is squarely inside the penalty regime — unlike a 457(b), which is not on the list at all.
The exceptions worth knowing
- Age 59½ — the ordinary end of the penalty.
- Separation from service in or after the year you turn 55 — the rule of 55, which applies to the plan you left and does not survive a rollover to an IRA.
- A 72(t) series of substantially equal periodic payments — workable but rigid; the calculator and what happens if you break it.
- Disability, death, and certain other statutory exceptions.
What limits access even when the tax would not
The plan document again. In-service access is generally restricted, and the menu of distribution forms is the plan’s to set. Annuity contracts inside a 403(b) can add their own surrender terms on top of the plan’s rules, which is a separate cost from the tax and is easy to miss.
The order to spend in
If you also have a 457(b), spend that first before 59½: it has no penalty and the 403(b) does — the two plans compared.
Related: what happens when you leave · rule of 55 vs 72(t).
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Penalty and limit statements on this page are read from the Internal Revenue Code itself (26 U.S.C. 72, 402, 414, 457 and 4974) and from IRS Notice 2025-67 for the 2026 figures. General information, not tax advice; your plan document can be more restrictive than the Code, and it governs what your plan actually allows.