457(b) early withdrawal: income tax yes, 10 % no

What Topic 558 says, and what it does not

The 10 % additional tax hits early distributions from qualified retirement plans: 401(k), 403(a), 403(b) and IRAs. Topic 558 then adds: "In general, an eligible state or local government section 457 deferred compensation plan isn't a qualified retirement plan and any distribution from such plan isn't subject to the 10% additional tax on early distributions" (IRS Topic 558). The IRS table of exceptions repeats it in a footnote, with the same limit for amounts "attributable to rollovers from another type of plan or IRA" (exceptions table).

The statement is about governmental plans, those of a state, a city, a county, a school district or a similar body. A 457(b) offered by a non-governmental tax-exempt employer has its own IRS page; this site does not model it, and its participants should read their plan documents and that page rather than assume the same treatment.

The rollover trap, both ways

Money moving into a governmental 457(b) carries its old status. Roll an IRA or an old 401(k) into the 457(b), and Topic 558 says "any distribution attributable to amounts the section 457 plan received in a direct transfer or rollover" from a qualified plan "would be subject to the 10% additional tax". Consolidating everything into the 457(b) does not open IRA money early.

The reverse move loses the advantage. Roll the 457(b) into an IRA after you leave and the money becomes IRA money, which owes the 10 % before 59½ unless an exception applies.

What the absence of the 10 % is worth

The married teacher above leaves at 49. The $45,000 withdrawal costs $1,280 of federal income tax: the 2026 standard deduction of $32,200 covers most of it and the rest falls in the 10 % bracket. Kept from a governmental 457(b): $43,720. Taken from a 401(k) left before the year of the 55th birthday, the same amount adds $4,500 of additional tax.

The saving is exactly the 10 % of each withdrawal, because income tax is the same on both sides. Over a ten-year bridge from 49 to 59 at $45,000 a year, that is $45,000 not paid, before any interest it would have earned.

Roth money and the 457(b) in a bridge plan

The IRS page on these plans notes that a governmental 457(b) may offer designated Roth contributions and in-plan rollovers to a designated Roth account. Roth money inside the plan follows the plan's Roth rules, not those of a Roth IRA, so check how the plan orders a payment that mixes pre-tax and Roth dollars before you rely on it.

Pre-tax 457(b) payments are ordinary income, and that has a second effect beyond the bracket. They raise the modified adjusted gross income (MAGI) that sets the premium tax credit for Marketplace health coverage. A public employee who retires at 52 and lives on 457(b) withdrawals until Medicare has a single dial for both the tax bill and the health premium: the amount taken each year. Splitting a large need between the 457(b) and a taxable account, where only the gain counts as income, keeps that dial lower. The 400 % line page shows where the credit stops for each household size.

When the plan actually pays

The tax rule only says the 10 % does not apply. The plan document says when you can ask. The common case is a payment after you leave the employer that sponsors the plan, and the IRS 457(b) page also refers to distributions for an unforeseeable emergency, under rules of their own (IRS, 457(b) plans). Plans differ on lump sums, installments and how often you can change the amount, so the administrator's distribution form is the document to read before you give notice.

The draw-age checker above treats the governmental 457(b) as open in the year you leave. For a public employee who also has a 401(k) or 403(b), the draw-age page puts the two calendars side by side.

2026 limits: filling the 457(b) before you leave

The IRS page on 457(b) plans sets the deferral limit at the section 402(g) limit, $24,500 in 2026. Participants in governmental 457(b) plans aged 50 or more for any part of the year may add a catch-up of up to $8,000, and those aged 60 to 63 a larger catch-up of $11,250 (IR-2025-111). That puts the yearly maximum at $32,500 from 50 and $35,750 between 60 and 63.

For an early retiree, those last working years are where a 457(b) earns its place: every dollar deferred is a dollar reachable at 50 without the 10 %. The contribution limits page adds the IRA and HSA amounts.