How does a 457(b) work?
Last updated August 2026
Short answer
For a public employee planning to stop working before 59.5, this is the most useful account in the system, and most people who have one do not know why.
Who offers one
State and local government employers, including school districts, cities, counties and public hospitals.
Certain tax-exempt organisations also offer them, usually to a select group of management or highly compensated employees.
The distinction between the two matters more than any other feature of the plan, and it changes what happens if the employer fails.
The separate limit
The 2026 deferral limit is $24,500, with an $8,000 catch-up from 50 and $11,250 at ages 60 to 63.
It does not share a ceiling with a 403(b) or a 401(k). An employee with both a 403(b) and a 457(b) can defer $24,500 into each.
For a teacher or hospital employee with access to both, that is $49,000 of deferral in one year before any catch-up.
No early withdrawal penalty
Once you separate from service, distributions from a governmental 457(b) are not subject to the 10% additional tax regardless of age.
Income tax still applies, so this is about access rather than about avoiding tax.
It makes the plan the natural bridge for anyone retiring in their fifties, and it is the reason to think carefully before rolling the balance into an IRA, which would reinstate the age rules.
Try it in Walnut
Walnut connects to brokerage accounts and analyses what you hold. Whether a 457(b) can be connected depends on the recordkeeper the employer uses.
The three-year catch-up
In each of the three years before the plan's normal retirement age, you may contribute up to twice the annual limit.
The extra room is limited to what you failed to contribute in prior years, so it rewards people who could not afford to save earlier.
It cannot be combined with the age-50 catch-up in the same year. The plan applies whichever produces the larger amount.
Governmental against non-governmental
Governmental plan assets are held in trust for participants and are protected from the employer's creditors.
Non-governmental plan assets legally remain the employer's. Participants are unsecured creditors, which is a real risk rather than a technicality.
Distribution and rollover options are also far narrower in non-governmental plans, so the same plan name describes two quite different products.
How to use it
If you have both a 403(b) and a 457(b) and cannot fill both, capture any match first, then choose based on when you expect to need the money.
The 457(b) suits money you might want before 59.5. The 403(b) suits money you will not touch until later.
In a non-governmental plan, weigh the deferral against the employer's financial health, because the two are connected in a way they are not anywhere else.
What to ask your plan administrator
Whether the plan is governmental, and whether assets are held in trust.
Whether a Roth option and an age-50 catch-up are offered, since neither is universal in this plan type.
How the employer contribution, if any, interacts with the deferral limit, because a 457(b) treats that differently from a 401(k).
Sources
The 2026 deferral and catch-up limits are from IRS Notice 2025-67. Plan rules, including the special three-year catch-up and the governmental distinction, are published by the IRS at IRC 457(b) deferred compensation plans. Walnut is informational and is not an investment adviser. This guide is educational and not personalized tax advice.
FAQ
How does a 457(b) work?
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It is a deferred compensation plan for state and local government employees and some tax-exempt organisations. You defer salary before tax, or after tax into a Roth option where offered, it grows untaxed, and withdrawals are ordinary income.
What is the big advantage over a 401(k)?
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No 10% additional tax on withdrawals after separation from service, at any age. A government 457(b) can be tapped at 45 without penalty if you have left that employer, which no other workplace plan allows.
Can I contribute to a 457(b) and a 403(b) in the same year?
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Yes, and the limits are separate rather than shared. In 2026 that is $24,500 into each, which is the largest workplace tax-advantaged opportunity available to anyone.
What is the special three-year catch-up?
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In the three years before the plan's normal retirement age, you may contribute up to twice the annual limit, to the extent you under-contributed in earlier years. You cannot use it in the same year as the age-50 catch-up; the plan applies whichever is larger.
What is the difference between a governmental and a non-governmental 457(b)?
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A crucial one. Governmental plan assets are held in trust for participants. Non-governmental plan assets remain the employer's property and are subject to its creditors, so if the organisation fails you are an unsecured creditor.
Can I roll it over?
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A governmental 457(b) can be rolled to an IRA or another eligible plan. Rolling to an IRA gives up the penalty-free access, so people planning early retirement often leave it where it is. Non-governmental plans have far more limited options.
Are there required minimum distributions?
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Yes, from 73, on the same schedule as other plans. Designated Roth accounts within the plan no longer carry lifetime required distributions.
Is there an employer match?
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Sometimes, though it is less common than in 401(k) plans, and in some cases an employer contribution counts toward the same annual limit rather than sitting on top of it. Check the plan document rather than assuming the 401(k) convention applies.
What should I ask my plan administrator?
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Whether the plan is governmental and held in trust, whether a Roth option and age-50 catch-up are offered, and how any employer contribution interacts with your deferral limit. All three vary in this plan type and none are safe to assume.