Home / For Educators / 403(b) vs 457(b): What's the Difference?
403(b)
Both are workplace retirement savings plans. Both allow you to make pre-tax contributions directly from your paycheck, and those contributions grow tax-deferred until you take the money out. If your district offers both, and many California districts do, you're not choosing between them the way you'd choose between two similar products.
The two differences that matter most:
Here's what sits behind each of those.
A 403(b) and a 401(k) share a single annual deferral limit. If you somehow had both, your combined contributions would still cap at one limit.
A 457(b) is the exception. The IRS treats its limit as separate from your 403(b), which means someone with access to both can contribute the annual maximum to each in the same year. That effectively doubles what you can shelter from tax, before any catch-up provisions.
For an educator in the last stretch of a career, trying to make up ground, this is the single most useful thing to know about a 457(b).
The specific dollar figures change most years, so this page doesn't carry them. The IRS publishes the current limits.
With a 403(b), withdrawals before age 59½ may be subject to a 10% early withdrawal penalty. With a governmental 457(b), once you separate from service, meaning you retire, quit, or are laid off, you can generally take withdrawals at any age without the 10% early withdrawal penalty. You still owe ordinary income tax on pre-tax withdrawals.
Whether you're 55, 50, or younger, it doesn't apply.
That makes a 457(b) unusually useful for anyone who might stop working before 59½, because it can cover the stretch between leaving work and the age when other accounts open up without penalty.
Two important limits on that:
It only covers money originally contributed to the 457(b). If you roll a 401(k), 403(b), or IRA balance into a 457(b), those dollars may still be subject to the 10% early withdrawal penalty. The exemption doesn't transfer with them.
Rolling money out of a 457(b) gives the feature up. Move a 457(b) into an IRA and the balance becomes subject to IRA rules, which means the penalty-free access before 59½ goes away. If early access matters to you, that's a decision to make deliberately rather than by default.
Both plans allow additional contributions beginning at age 50, with a higher catch-up limit available for ages 60 through 63. Beyond that, each has its own special provision, and they work differently.
403(b): long-serving employees with 15 or more years at the same employer may be able to contribute an additional amount above the standard limit, subject to a lifetime cap.
457(b): some governmental plans allow a "three years before normal retirement age" catch-up, which can permit up to twice the standard annual limit during those three years. It depends on contributions you didn't make in earlier years, so it's essentially a chance to make up unused room.
Both are plan-specific. Your plan administrator can tell you whether yours offers them and whether you qualify.
A 403(b) may allow you to begin taking distributions once you reach age 59½, even if you are still working. Before age 59½, many 403(b) plans also allow you to borrow from your account, generally up to 50% of your vested balance, with a maximum loan of $50,000, subject to your plan's rules.
A governmental 457(b) works differently. Once you separate from service, whether you retire, quit, or are laid off, you can generally begin taking distributions regardless of your age, without the 10% early withdrawal penalty.
While you are working, a governmental 457(b) uses a stricter standard to take distributions called an "unforeseeable emergency," meaning severe financial hardship from illness, accident, casualty loss, or similar circumstances outside your control. Buying a house or paying tuition generally doesn't qualify. Distributions that do qualify are exempt from the 10% penalty.
Stricter to access, but no penalty when access is granted. That's the trade.
Nearly everything above describes a governmental 457(b), which is the type generally offered to California public school and public agency employees.
Non-governmental 457(b) plans, offered by some private nonprofits, work differently in ways that matter: the balance can remain exposed to the employer's creditors, and it generally can't be rolled into an IRA. If you work for a private nonprofit rather than a district, confirm which type you have before assuming any of this applies.
There isn't a universal answer, and anyone who gives you one without knowing your situation is guessing.
The factors that actually drive it:
Can I contribute to both a 403(b) and a 457(b) in the same year?
If your employer offers both, generally yes. The IRS treats the 457(b) limit as separate from the 403(b) limit, so contributing to one doesn't reduce what you can put in the other.
Is the 457(b) really penalty-free before 59½?
For a governmental 457(b), yes, on money you contributed to that plan, once you've separated from service. You still owe regular tax on the withdrawal. The 10% early withdrawal penalty doesn't apply.
What happens to the penalty-free feature if I roll it into an IRA?
It goes away. Once the money is in an IRA, IRA rules govern it, including the potential 10% early withdrawal penalty before 59½. This is worth checking before consolidating accounts.
Do both have required minimum distributions?
Yes. Pre-tax balances in both are generally subject to required minimum distributions (RMDs), currently beginning at age 73 and age 75 for those born in 1960 or later.
Does contributing to either affect my CalSTRS pension?
No. Your pension is calculated from service credit, age factor, and final compensation. These are separate accounts.
How do I find out whether my district offers a 457(b)?
Your district's benefits office is the direct answer. Plan documents and your salary reduction paperwork will also show which plans are available to you.
If your district offers both and you're trying to work out where your contributions should go, that decision usually depends on when you plan to stop working and what the rest of your retirement looks like.
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Sources: Internal Revenue Service, 403(b) and 457(b) plan guidance and contribution limits (irs.gov).
Reviewed August 2026.
