457 vs 401k comes down to three practical differences: a governmental 457(b) carries no 10% early-withdrawal penalty on its own contributions, holds a contribution limit separate from your 401(k), and is offered only by government and some nonprofit employers. A 401(k) reaches far more workers and usually adds an employer match. Many public-sector employees can use both plans in the same year.
For 2026, both a governmental 457(b) and a 401(k) share a $24,500 base deferral limit (IRS Notice 2025-67), but they are separate limits, so an employee eligible for both may defer $24,500 in each, up to $49,000 before catch-up. Governmental 457(b) withdrawals after separation face no 10% early penalty at any age; a 401(k) generally penalizes withdrawals before 59½.
457 vs 401k: what actually differs
The 457 vs 401k decision turns on four differences: eligibility, the 10% early-withdrawal penalty, whether the contribution limit stacks with other plans, and the employer match. A governmental 457(b) leads on early access and stacking, while a 401(k) leads on availability and matching. The table below sets the two plans side by side for 2026.
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A 401(k) is a qualified retirement plan offered by private-sector employers of nearly any size. A governmental 457(b) is a deferred compensation plan offered only by state or local governments, which hold plan assets in trust for participants (Source: IRS, IRC 457(b) Deferred Compensation Plans).
| Feature | Governmental 457(b) | 401(k) |
|---|---|---|
| Who can sponsor | State and local governments | Private-sector employers, broadly |
| 2026 base deferral limit | $24,500 (IRS Notice 2025-67) | $24,500 (IRS Notice 2025-67) |
| 10% early-withdrawal penalty | None on native amounts after separation, any age (IRS Topic 558) | Generally applies before 59½ unless an exception applies |
| Limit stacks with 401(k)/403(b)? | Yes, separate statutory limit | Shares the 402(g) limit with 403(b) |
| Employer match | Rare; counts toward the same annual limit | Common; sits on top of your deferral |
What are the 2026 contribution limits for a 457 and a 401k?
For 2026, the elective deferral limit is $24,500 for both a 457 and a 401(k), up from $23,500 in 2025 (IRS Notice 2025-67). The age-50 catch-up is $8,000, and a SECURE 2.0 super catch-up of $11,250 applies to participants who are ages 60 to 63 during the year. The separate IRA limit is $7,500, or $8,600 at age 50 and older.
The 457(b) deferral limit comes from IRC 457(e)(15) and the 401(k) limit from IRC 402(g)(1). Both equal $24,500 for 2026, but they are separate statutory limits, not one shared cap (Source: IRS Notice 2025-67).
| 2026 limit | Amount | Source |
|---|---|---|
| Elective deferral (457(b), 401(k), 403(b), TSP) | $24,500 | IRS Notice 2025-67 |
| Age-50 catch-up | $8,000 | IRS Notice 2025-67 |
| Super catch-up, ages 60 to 63 (SECURE 2.0) | $11,250 | IRS Notice 2025-67 |
| IRA contribution limit | $7,500 | IRS Notice 2025-67 |
| IRA limit, age 50 and older | $8,600 | IRS Notice 2025-67 |
Under SECURE 2.0, a participant who turns 60, 61, 62, or 63 during 2026 may use the $11,250 super catch-up in place of the standard $8,000 age-50 catch-up (Source: IRS Notice 2025-67). Most competitor pages still lead with the 2025 figure of $23,500 and omit both the $24,500 limit and this super catch-up.
Does a 457 have a 10% early-withdrawal penalty?
A governmental 457(b) does not apply the 10% early-withdrawal penalty to its own contributions and earnings once you separate from service, regardless of age (IRS Topic 558). The exception: money rolled into the 457 from a 401(k), 403(b), or IRA keeps its 10% penalty exposure until you reach 59½. A 401(k) penalizes most withdrawals before 59½.
IRS Topic 558 treats a distribution from an eligible state or local government 457 plan as outside the 10% additional tax on early distributions, because a 457(b) is not a qualified retirement plan. This is a categorical exclusion, not a benefit that turns on any particular age.
The rolled-in caveat is the point almost every competitor misses. If a governmental 457(b) received funds by rollover or direct transfer from a qualified plan or IRA, a distribution attributable to those rolled-in amounts stays subject to the 10% additional tax (Source: IRS Topic 558). The exemption covers native 457(b) money, not funds that arrived carrying their own penalty exposure.
Can you contribute to both a 457 and a 401k in the same year?
Yes. A governmental 457(b) has its own deferral limit that is not aggregated with a 401(k) or 403(b) (Source: IRS). An employee eligible for both may defer up to $24,500 in each for 2026, or $49,000 in base deferrals, before catch-up amounts (IRS Notice 2025-67). Public-sector workers with access to both plans can shelter close to double the single-plan amount.
| 2026 scenario | 457(b) deferral | 401(k)/403(b) deferral | Base total |
|---|---|---|---|
| One plan only | None | $24,500 | $24,500 |
| Eligible for both | $24,500 | $24,500 | $49,000 |
How does the employer match differ?
Employer matching is common in 401(k) plans and rare in governmental 457(b) plans. When a 457(b) does offer a match, the employer contribution counts toward the same annual limit as your own deferrals, so a match reduces how much you can personally defer. In a 401(k), the match sits on top of your $24,500 deferral, inside a higher combined limit.
The special three-year pre-retirement 457 catch-up
A governmental 457(b) offers a special catch-up in the three years before your plan’s normal retirement age. During those years you may contribute up to twice the annual limit, up to $49,000 for 2026, drawing on unused deferral room from prior years (Source: IRC 457(b)). You cannot combine this three-year catch-up with the age-50 catch-up in the same year; you use whichever produces the larger amount.
Who can offer each plan?
A 401(k) is offered by private-sector employers of nearly any size. A 457(b) is offered only by state and local governments (a governmental 457(b)) or by 501(c) tax-exempt organizations (a non-governmental 457(b)). The two 457 types differ sharply: governmental plan assets sit in trust for you, while non-governmental plan assets stay the employer’s property and are exposed to its creditors.
That governmental versus non-governmental split changes the planning, and most articles gloss over it. A non-governmental 457(b) also follows different rollover rules: its balance generally cannot be rolled to an IRA or a 401(k), only to another non-governmental 457(b) that accepts it (Source: IRS, non-governmental 457(b) plans). The facts on this page describe governmental 457(b) treatment unless stated otherwise.
When can you take money out?
Governmental 457(b) funds generally become available only after you separate from service, with a narrow unforeseeable-emergency exception (Treasury Reg. 1.457-6). Once separated, native 457(b) amounts are reachable with no 10% penalty at any age (IRS Topic 558). A 401(k) ties penalty-free early access to specific exceptions, such as the rule of 55 or substantially equal periodic payments, rather than a blanket exclusion.
How withdrawal timing feeds Roth conversions, RMDs, and IRMAA
Penalty-free 457(b) access before 59½ can open low-income years for tax planning that few competitor pages connect. Some households fill those years with a Roth conversion, since a conversion is taxable ordinary income that many investors prefer to realize in a low bracket; the question of how much to convert often hinges on that bracket headroom.
Withdrawal and conversion timing also shapes later obligations. Reducing pre-tax balances early can trim future required minimum distributions, which begin at age 73 (age 75 for those born in 1960 or later). Because Medicare IRMAA uses a two-year income lookback, and the 3.8% net investment income tax starts at $200,000 of income for single filers, the year you take money out can move both. These outcomes depend on individual circumstances.
Is a 457 better than a 401k?
Neither plan is universally better; they answer different questions. A governmental 457(b) may suit workers who could retire or separate before 59½, because it removes the 10% early penalty and adds a separate contribution limit. A 401(k) may suit those who value a wider employer base and a reliable match. Eligibility, planned retirement age, and your other accounts often decide the fit.
For many public-sector households, the plans are complements rather than rivals: contribute to the 401(k) or 403(b) to capture any match, use the 457(b) for its penalty-free early access, and coordinate withdrawals with a Roth conversion break-even analysis. The right sequence varies by situation and is worth reviewing with a qualified professional.
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Q3 Advisors is a registered investment adviser focused on retirement tax planning. This page is educational and is not advice; consult a qualified professional.
Frequently asked questions
Is a 457 better than a 401k?
Neither is universally better. A governmental 457(b) removes the 10% early-withdrawal penalty on its own funds and adds a contribution limit separate from your 401(k) (IRS Topic 558; IRS Notice 2025-67). A 401(k) reaches far more employers and usually includes a match. The right choice depends on your eligibility, when you may need the money, and your other retirement accounts.
Can you contribute to both a 457 and a 401k in the same year?
Yes, if you are eligible for both. A governmental 457(b) carries a deferral limit that is not combined with a 401(k) or 403(b) (Source: IRS). For 2026, that means up to $24,500 in each plan, or $49,000 in base deferrals combined, before any catch-up contributions (IRS Notice 2025-67). Many public-sector employees use both plans to roughly double their annual tax-deferred savings.
What is the downside of a 457 plan?
The main downsides of a 457 plan are limited eligibility (only government and some nonprofit employers offer one), a rare employer match, and the fact that any match counts toward the same annual limit as your own deferrals. Non-governmental 457(b) assets also stay exposed to the employer’s creditors, and money rolled in from other plans keeps its 10% early-withdrawal exposure.
Do you pay taxes on a 457 withdrawal?
Yes. Withdrawals from a traditional governmental 457(b) are taxed as ordinary income in the year you take them, the same as a traditional 401(k) (Source: IRS). There is no 10% early-withdrawal penalty on native 457(b) amounts after separation, but the income tax still applies. A designated Roth 457(b), where offered, allows qualified withdrawals to come out tax-free.
Can I roll my 457 into a 401k or IRA?
A governmental 457(b) generally may be rolled into a 401(k), 403(b), or IRA after separation. Watch one caveat: any amount that originally arrived from a qualified plan or IRA keeps its 10% early-withdrawal exposure, and rolling native 457(b) money into an IRA can attach the 10% penalty to funds that were previously exempt (IRS Topic 558). Non-governmental 457(b) plans follow separate rollover rules.
At what age can you withdraw from a 457 without penalty?
With a governmental 457(b), there is no minimum age for penalty-free withdrawals. Once you separate from service, you may take native 457(b) funds at any age with no 10% early-withdrawal penalty, though ordinary income tax still applies (IRS Topic 558). This differs from a 401(k), which generally applies the 10% penalty to withdrawals before age 59½.
