A 457(b) plan produces a short, predictable set of tax forms. Your employer reports your contributions on Form W-2, the plan administrator issues Form 1099-R for any distribution or rollover, Form 5329 comes into play if you miss a required minimum distribution, and Form 8880 lets you claim the Saver’s Credit when your income qualifies. For 2026, the standard deferral limit is $24,500, and every pre-tax dollar you defer shows up as Code G in Box 12 of your W-2.1Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026; IRA Limit Increases to $7,500
What Your W-2 Shows
Pre-tax 457(b) deferrals appear in Box 12 with Code G.2Internal Revenue Service. Common Errors on Form W-2 Codes for Retirement Plans That total is the amount redirected from your paycheck into the plan during the calendar year, and your Box 1 taxable wages are already reduced by the same figure. You don’t add or subtract anything on your return; the reduction is baked into the wages your employer reports.
If your governmental plan offers a designated Roth option and you used it, those contributions sit in Box 12 under Code EE.3Internal Revenue Service. General Instructions for Forms W-2 and W-3 (2026) Roth contributions don’t reduce Box 1 because you’ve already paid income tax on that money.
One quirk trips people up: 457(b) deferrals do not reduce Box 3 (Social Security wages) or Box 5 (Medicare wages). FICA is calculated on your full salary before the deferral is subtracted, so your Social Security and Medicare withholding won’t drop when you contribute.
Before you file, compare the Code G or Code EE figure to your last pay stub of the year. If they disagree, call payroll — a mismatch means either the W-2 or the payroll record is wrong, and fixing it later is harder than fixing it now. Employers must furnish W-2s by January 31.4Internal Revenue Service. General Instructions for Forms W-2 and W-3 (2026)
Form 1099-R When You Take a Distribution
Any payout from your 457(b) generates a Form 1099-R from the plan administrator, due to you by January 31. Box 1 is the gross distribution. Box 2a is the taxable portion, which for a pre-tax 457(b) usually equals Box 1 because none of the money has ever been taxed. A qualified Roth 457(b) distribution shows $0 in Box 2a.
Box 7 carries the distribution code that tells the IRS what kind of payment this was.5Internal Revenue Service. Instructions for Forms 1099-R and 5498 The codes you’re most likely to see:
- Code 2 — early distribution with an exception. This is common for governmental 457(b) participants who separate from service before age 59½, and it signals that the 10% early withdrawal penalty doesn’t apply.
- Code 7 — normal distribution, typically for participants age 59½ or older.
- Code G — direct rollover to another qualified plan.
- Code H — direct rollover to a Roth IRA.
If you took several distributions or your account holds a mix of rollover and non-rollover money, you may receive more than one 1099-R. Each one reports separately on your return.
The Penalty Exemption and What Breaks It
Distributions from a governmental 457(b) are not subject to the 10% early withdrawal penalty under IRC Section 72(t), regardless of your age.6Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions Separate from service at 45 and you can tap the account without the extra 10%. You still owe ordinary income tax, but the penalty is off the table.
The exception that catches people: money rolled into your 457(b) from a 401(k), 403(b), or IRA keeps its original penalty rules. If you take a distribution attributable to those rolled-in dollars before 59½, the 10% penalty applies.5Internal Revenue Service. Instructions for Forms 1099-R and 5498 The reverse also matters: once you roll 457(b) money out into an IRA, the exemption is gone for good. Think twice before consolidating.
Reporting a Rollover on Your Return
A direct rollover — plan administrator to plan administrator — is the clean path. No tax is withheld, no tax is owed for the year, and the 1099-R will show the gross amount in Box 1 with $0 in Box 2a and Code G or H in Box 7.7Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions
An indirect rollover works differently. The plan pays you, withholds 20% for federal income tax on the eligible rollover amount, and starts a 60-day clock. To complete the rollover tax-free, you must deposit the full distribution — including the 20% that was withheld, which you have to make up from other funds — into an eligible retirement account within those 60 days. Miss the deadline and the entire distribution becomes taxable income for the year.7Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions
On Form 1040, enter the full distribution amount from Box 1, then write “rollover” next to the taxable amount, which should be zero for a complete rollover. That reconciles what the plan reported against what you actually owe.
Form 5329 for a Missed RMD
Your 457(b) is subject to required minimum distributions. If you were born between 1951 and 1959, RMDs start the year you turn 73; if you were born after 1959, they start the year you turn 75. Your first RMD must be taken by April 1 of the following year, and every subsequent one by December 31.
If you miss one or take less than required, IRC Section 4974 imposes a 25% excise tax on the shortfall. The rate drops to 10% if you correct the mistake within the correction window and file a return reflecting the tax during that period. The window runs from the date the tax is imposed until the earlier of an IRS deficiency notice or the end of the second tax year after the year the RMD was due.8United States Government Publishing Office. 26 USC 4974 – Excise Tax on Certain Accumulations in Qualified Retirement Plans
You report the tax on Form 5329, attached to your Form 1040. The same form is where you indicate that you qualify for the reduced 10% rate. File it any year you have a shortfall, even if you owe no other additional taxes.
Form 8880 for the Saver’s Credit
If your income is modest, contributing to your 457(b) can trigger the Saver’s Credit, which directly reduces your tax bill. The credit applies to the first $2,000 of contributions ($4,000 if married filing jointly), for a maximum credit of $1,000 per person or $2,000 per couple.9Internal Revenue Service. Retirement Savings Contributions Credit (Saver’s Credit)
The rate depends on your adjusted gross income and filing status. For 2026:
- 50% rate: AGI up to $24,250 (single), $36,375 (head of household), or $48,500 (married filing jointly).
- 20% rate: AGI of $24,251–$26,250 (single), $36,376–$39,375 (HOH), or $48,501–$52,500 (joint).
- 10% rate: AGI of $26,251–$40,250 (single), $39,376–$60,375 (HOH), or $52,501–$80,500 (joint).
Above those thresholds, the credit is zero. Claim it on Form 8880, using the Code G amount from your W-2 as the contribution figure. It’s nonrefundable, so it can reduce your tax to zero but won’t generate a refund by itself.9Internal Revenue Service. Retirement Savings Contributions Credit (Saver’s Credit)
If Your Plan Is Non-Governmental
Everything above assumes a governmental 457(b), which covers most participants. Non-governmental 457(b) plans, offered by tax-exempt organizations like hospitals and charities, follow different rules: no Roth option, no age-50 catch-up, and no rollovers to an IRA or another employer plan.10Internal Revenue Service. Non-Governmental 457(b) Deferred Compensation Plans If your plan is non-governmental, you won’t see Code EE on your W-2, and rollover reporting on Form 1099-R and Form 1040 generally doesn’t apply to you.
Before You File
Pull each form together and check them against your own records:
- W-2 with the correct Code G (and Code EE if applicable) figure in Box 12.
- Every 1099-R from the plan, including separate forms for rollovers and non-rollover distributions.
- Form 5329 if you owe the RMD excise tax.
- Form 8880 if your AGI qualifies you for the Saver’s Credit.
Keep copies. If the IRS questions a deferral amount or a distribution code years later, the paperwork you saved is what settles it.