The core of 457 vs 401k is that both let employees defer pay before tax, but a governmental 457(b) carries no 10% early-withdrawal penalty and holds a separate contribution limit, while a 401(k) is available to far more employers and generally applies a 10% penalty before age 59½. Each plan answers a different question about when you can reach the money and how much you can shelter in one year.
For 2026, the elective deferral limit is $24,500 for both governmental 457(b) and 401(k) plans (Source: IRS Notice 2025-67). The 457(b) limit is separate from the 401(k)/403(b) limit, so an employee eligible for both may defer up to $24,500 in each. Governmental 457(b) distributions are not subject to the 10% early-withdrawal tax; a 401(k) generally is before 59½.
457 vs 401k: what actually differs
A 457(b) and a 401(k) share the same 2026 base deferral limit of $24,500 (Source: IRS Notice 2025-67), but they differ on three points that drive most decisions: who can offer the plan, whether early withdrawals face a 10% penalty, and whether the contribution limit stacks with other plans. The 457(b) is narrower on eligibility and more flexible on early access.
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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, holding assets in trust for participants (Source: IRS, IRC 457(b) Deferred Compensation Plans).
| Feature | Governmental 457(b) | 401(k) |
|---|---|---|
| 2026 base deferral limit | $24,500 (Source: IRS Notice 2025-67) | $24,500 (Source: IRS Notice 2025-67) |
| Governing limit | IRC 457(e)(15), separate statutory limit | IRC 402(g)(1) |
| Who can sponsor | State/local governments (governmental 457(b)) | Private-sector employers, broadly |
| 10% early-withdrawal tax | Not applied to native 457(b) amounts (Source: IRS Topic 558) | Generally applies before 59½ unless an exception applies |
| Limit stacks with 401(k)/403(b)? | Yes, separate limit (Source: IRS) | Shares the 402(g) limit with 403(b) |
For the full schedule of annual dollar figures across account types, see the Q3 Advisors 2026 retirement contribution limits reference.
2026 contribution limits for each plan
For 2026, the elective deferral limit is $24,500 for governmental 457(b), 401(k), 403(b), and the federal Thrift Savings Plan, up from $23,500 in 2025 (Source: IRS Notice 2025-67). The age-50 catch-up is $8,000, up from $7,500 (Source: IRS Notice 2025-67). These figures determine the maximum an employee may defer from pay in a single year, before employer contributions.
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 |
| Higher catch-up, ages 60-63 (SECURE 2.0) | $11,250 | IRS Notice 2025-67 |
| IRA contribution limit | $7,500 | IRS Notice 2025-67 |
| IRA age-50 catch-up | $1,100 | IRS Notice 2025-67 |
Under SECURE 2.0, a participant who turns 60, 61, 62, or 63 during 2026 may use a higher catch-up that remains $11,250 for the year (Source: IRS Notice 2025-67). The governmental 457(b) age-50 catch-up also rose to $8,000 under IRC 457(e)(11)(B)(ii) (Source: IRS Notice 2025-67).
The 10% early-withdrawal difference (the deciding factor for many)
The clearest split in the 457 vs 401k comparison is early access. Governmental 457(b) distributions are not subject to the 10% additional tax on early distributions, because a 457(b) is not a qualified retirement plan (Source: IRS Topic 558). A 401(k) generally applies the 10% penalty to withdrawals before age 59½ unless a specific exception applies. This gap can matter for anyone who separates from service well before 59½.
IRS Topic 558 states that a distribution from an eligible state or local government 457 plan is not subject to the 10% additional tax on early distributions (Source: IRS Topic 558). This is a categorical exclusion from the penalty regime, not a benefit that turns on separation from service.
One caveat changes the picture: if a governmental 457(b) received money by rollover or direct transfer from a qualified plan or an IRA, a distribution attributable to those rolled-in amounts remains subject to the 10% additional tax (Source: IRS Topic 558). The penalty exemption covers native 457(b) contributions, not funds that arrived carrying their own penalty exposure.
Because early access can interact with tax brackets and future conversions, some households study how withdrawal timing affects a Roth conversion plan, and how it may feed into the Social Security tax torpedo. These interactions depend on individual circumstances.
Stacking a 457(b) and a 401(k) or 403(b) in the same year
A governmental 457(b) has a separate deferral limit that is not aggregated with 401(k) or 403(b) deferrals (Source: IRS). An employee eligible for both a 457(b) and a 401(k) or 403(b) may therefore defer up to the full 402(g) limit and the full 457 limit in the same year: $24,500 plus $24,500, or $49,000 in base deferrals for 2026, before any catch-up (Source: IRS Notice 2025-67; IRS multiple-plan guidance).
The IRS states that a participant has a separate limit if also eligible for a Section 457(b) plan, and that this limit is not combined with deferrals made to a 403(b) or other plans (Source: IRS, salary deferral guidance for multiple plans). This is why public-sector employees with access to both plans can shelter roughly twice the single-plan amount.
| 2026 scenario | 457(b) deferral | 401(k)/403(b) deferral | Base total |
|---|---|---|---|
| One plan only | – | $24,500 | $24,500 |
| Eligible for both | $24,500 | $24,500 | $49,000 |
Catch-up amounts, where available, may be added on top of these base figures under the rules for each plan (Source: IRS Notice 2025-67). How much of this capacity a person uses depends on cash flow and other planning goals.
Who can offer each plan
A 457(b) can be sponsored only by a state or local government or a tax-exempt organization under IRC 501(c) (Source: IRS, IRC 457(b) Deferred Compensation Plans). A 401(k) is offered broadly by private employers. This eligibility gap is why the 457 vs 401k choice usually appears for public-sector and nonprofit workers rather than for most private-company employees.
Two categories of 457(b) exist. A governmental 457(b) is offered by state or local governments and holds assets in trust for participants. A non-governmental 457(b) is offered by 501(c) tax-exempt organizations, and its assets remain the employer’s property, subject to the employer’s creditors (Source: IRS, non-governmental 457(b) plans). The penalty and separate-limit points above are strongest for governmental 457(b) plans.
Non-governmental 457(b) plans also carry different rollover rules and creditor exposure, so the two 457(b) types are not interchangeable in planning. The facts on this page describe governmental 457(b) treatment unless stated otherwise.
When you can take money out
Governmental 457(b) benefits generally may not be made available before the participant separates from service, with a limited exception for an unforeseeable emergency under Treasury Regulation 1.457-6 (Source: IRS, IRC 457(b) Deferred Compensation Plans; IRS Topic 558). Separation from service is the general trigger for eligibility to take a distribution, which is separate from the question of the 10% penalty.
The distinction matters: separation makes 457(b) funds available, and the absence of the 10% additional tax makes native 457(b) amounts reachable without that penalty even before 59½ (Source: IRS Topic 558). A 401(k), by contrast, ties penalty-free early access to specific exceptions rather than a blanket exclusion.
Distribution timing can also affect later obligations such as required minimum distributions and income-based figures like Medicare IRMAA. These outcomes vary by situation.
Work with Q3 Advisors
Q3 Advisors is a registered investment adviser focused on retirement tax planning. This article is educational and is not advice; for guidance on your own circumstances, consult a qualified tax or financial professional.
Frequently asked questions
Is a 457 better than a 401k?
Neither plan is universally better; they solve different problems. A governmental 457(b) offers no 10% early-withdrawal penalty on native amounts and a separate contribution limit (Source: IRS Topic 558; IRS Notice 2025-67). A 401(k) is available to far more employers. The right fit depends on eligibility, when you may need the money, and other plans you hold.
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) has a separate deferral limit that is not combined with 401(k) or 403(b) deferrals (Source: IRS). For 2026, that allows up to $24,500 in each plan, or $49,000 in base deferrals combined, before catch-up amounts (Source: IRS Notice 2025-67).
What is the 2026 contribution limit for a 457 and a 401k?
For 2026, the elective deferral limit is $24,500 for both a governmental 457(b) and a 401(k), up from $23,500 in 2025 (Source: IRS Notice 2025-67). The age-50 catch-up is $8,000, and participants turning 60 to 63 in 2026 may use a higher catch-up of $11,250 under SECURE 2.0 (Source: IRS Notice 2025-67).
Does a 457 have an early-withdrawal penalty?
A governmental 457(b) distribution is not subject to the 10% additional tax on early distributions, because the plan is not a qualified retirement plan (Source: IRS Topic 558). One exception: amounts rolled or transferred into the 457(b) from a qualified plan or IRA keep their 10% penalty exposure when distributed (Source: IRS Topic 558).
Who is eligible for a 457 plan?
A 457(b) can be offered only by a state or local government or a tax-exempt organization under IRC 501(c) (Source: IRS, IRC 457(b) Deferred Compensation Plans). This makes 457(b) plans common among public-sector and nonprofit employees, while 401(k) plans are offered broadly across private-sector employers of nearly any size.
Can you roll a 457 into a 401k or IRA?
A governmental 457(b) generally may be rolled to other eligible plans and IRAs. Note that any 457(b) amount that originally arrived from a qualified plan or IRA keeps its 10% early-withdrawal exposure on later distribution (Source: IRS Topic 558). Non-governmental 457(b) plans follow different rollover rules and are treated separately (Source: IRS).
Sources
IRS Notice 2025-67, 2026 retirement plan limitations: irs.gov/pub/irs-drop/n-25-67.pdf
IRS Newsroom, 401(k) limit increases to $24,500 for 2026: irs.gov newsroom
IRS Topic 558, additional tax on early distributions: irs.gov/taxtopics/tc558
IRS, salary deferral limits for more than one plan: irs.gov multiple-plan deferrals
IRS, IRC 457(b) Deferred Compensation Plans: irs.gov IRC 457(b)
IRS, Non-governmental 457(b) Deferred Compensation Plans: irs.gov non-governmental 457(b)
