Will I Get a 1099-R for My 401(k) Withdrawal?

Yes. If you took a distribution of $10 or more from your 401(k), the plan administrator will send you a Form 1099-R for that 401(k) withdrawal, with a copy going to the IRS. Expect it by January 31 of the year after the withdrawal. The form shows how much came out, how much is taxable, how much tax was already withheld, and a code explaining why the money was distributed. That last piece drives whether you owe just income tax or income tax plus a 10% penalty.

When the Form Arrives and Who Sends It

Form 1099-R reports distributions from pensions, annuities, retirement plans, and IRAs. Plan administrators must file one for any distribution of $10 or more during the calendar year.1Internal Revenue Service. About Form 1099-R The IRS gets Copy A. You get Copy B to file with your tax return and Copy C for your records.

The deadline for the administrator to mail or electronically deliver your copy is January 31 of the year following the distribution. A withdrawal taken in 2025 produces a 1099-R by the end of January 2026. Electronic delivery is only used if you’ve opted in; otherwise it comes on paper.

The Boxes That Determine Your Tax Bill

A handful of numbered boxes on the form do the real work.2Internal Revenue Service. Instructions for Forms 1099-R and 5498 Box 1 shows the gross distribution, meaning the total paid out before any withholding. Box 2a shows the taxable amount. For a traditional 401(k) funded entirely with pre-tax dollars, Box 2a will equal Box 1. For a qualified Roth 401(k) distribution, it should be zero.

Box 4 shows the federal income tax already withheld and sent to the IRS on your behalf. That amount acts as a credit on your return, the same way paycheck withholding does. Box 5 reports any after-tax or designated Roth contributions included in the distribution, which helps establish how much of the payout, if any, isn’t taxable. Box 7 is the distribution code, a one- or two-character entry that tells the IRS why the money came out.

What the Distribution Code in Box 7 Means

The code in Box 7 is the most consequential entry on the form. It signals to the IRS whether a penalty applies and shapes how tax software or a preparer handles the distribution.3Internal Revenue Service. Instructions for Forms 1099-R and 5498 The codes you’re most likely to see on a 401(k) distribution are:

  • Code 1 — early distribution, no known exception. You were under 59½ and the administrator has no reason to believe you qualify for a penalty waiver.
  • Code 2 — early distribution, exception applies. You were under 59½, but the administrator knows an exception fits, such as separation from service after age 55 or substantially equal periodic payments.
  • Code 7 — normal distribution. You were at least 59½, or the payout was otherwise routine. No penalty.
  • Code G — direct rollover to another qualified plan or IRA. Not taxable.
  • Code B — distribution from a designated Roth account. Taxability depends on whether it’s a qualified distribution.

One nuance trips people up. Code 1 gets used even when you actually qualify for a penalty exception, as long as the administrator wasn’t aware of it. If you took an early withdrawal because of a terminal illness or emergency personal expenses, the form may still say Code 1. It’s on you to claim the exception on Form 5329 when you file.1Internal Revenue Service. About Form 1099-R

The Mandatory 20% Withholding on Cash Distributions

If you took the money as a check to yourself rather than as a direct rollover, the plan was required to withhold 20% for federal income tax. You cannot opt out.4eCFR. 26 CFR 31.3405(c)-1 – Withholding on Eligible Rollover Distributions The only way to avoid it is a direct rollover, where the funds move plan-to-plan without passing through your hands.5Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions

The math is the part people don’t see coming. Request $50,000 in cash and you receive $40,000, with $10,000 going to the IRS. If you later decide within 60 days that you’d rather roll the distribution into an IRA, you have to come up with that missing $10,000 from other funds to complete the full rollover. Any shortfall is treated as a taxable distribution. The withheld amount does show up in Box 4 as a credit against your final tax, but the cash-flow gap is real.

How the Withdrawal Gets Taxed

The taxable amount from Box 2a is added to your other income for the year and taxed at ordinary income rates. A large withdrawal can push you into a higher bracket. Whatever was withheld in Box 4 is a prepayment: if it covers more than you owe, you get a refund; if not, you pay the difference at filing time.

On top of income tax, distributions taken before age 59½ carry an additional 10% tax on the taxable portion.6Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts On a $30,000 early withdrawal, that’s an extra $3,000 beyond the regular tax.

The IRS recognizes exceptions to the 10% penalty, and several were expanded under the SECURE 2.0 Act. The ones most relevant to 401(k) participants include:7Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions

  • Separating from service in or after the year you turn 55 (the “Rule of 55”), applied only to the plan at the employer you left.8Internal Revenue Service. Topic No. 558, Additional Tax on Early Distributions From Retirement Plans
  • Total and permanent disability.
  • Death, for distributions to a beneficiary.
  • Unreimbursed medical expenses above 7.5% of adjusted gross income.
  • Qualified birth or adoption, up to $5,000 per child.
  • Qualified domestic relations order in a divorce.
  • Substantially equal periodic payments based on life expectancy.
  • Terminal illness, with a physician’s certification of a life expectancy of 84 months or less, no dollar cap.
  • Emergency personal expenses, one withdrawal per year up to $1,000, repayable within three years.
  • Domestic abuse victims, up to the lesser of $10,000 or 50% of the account balance.
  • Federally declared disaster, up to $22,000 for individuals in a qualified disaster area.

An exception cancels the 10% penalty, not the income tax. If the plan reported Code 1 despite an exception applying, you file Form 5329 with the appropriate exception code to zero out the penalty on your return.

Roth 401(k) Withdrawals

Roth 401(k) contributions were taxed going in, and qualified distributions come out tax-free. Qualified means two things at once: you’re at least 59½ (or the distribution follows death or disability), and you’ve held the Roth account at least five tax years.9Internal Revenue Service. Retirement Plans FAQs on Designated Roth Accounts The five-year clock starts January 1 of the first year you contributed to that Roth account.

A qualified Roth distribution shows Code B in Box 7 with zero in Box 2a. If it doesn’t meet both requirements, the earnings portion is taxable and the 10% penalty may also apply. You still get a 1099-R either way.

Rollovers Still Generate a 1099-R

A direct rollover produces a 1099-R with Code G in Box 7 and zero in Box 2a. No tax is owed, but the IRS tracks the movement, which is why the form exists.5Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions

An indirect rollover is messier. You receive the funds personally, the plan withholds 20%, and you have 60 days from receipt to deposit the full original amount into another eligible retirement account. Complete it in time and none of it is taxable, but you’ll have to front the withheld 20% from other money and wait to recover it as a refund. Miss the 60-day window and the whole distribution is taxable, with the 10% penalty on top if you’re under 59½.

Putting the 1099-R on Your Return

The 1099-R data flows to the pensions and annuities lines of Form 1040. Box 1 goes on the gross distribution line, Box 2a on the taxable amount line, and Box 4 goes in the payments section where it reduces your tax dollar-for-dollar. If Box 7 shows Code 1 and no exception fits, the 10% additional tax is computed on Form 5329 and added to your bill. If an exception applies but the administrator didn’t code it, Form 5329 is also where you claim it.

Tax software routes most of this automatically once you enter the code. Check that any exception you’re entitled to actually made it onto the return before you file.

Skipping the 1099-R doesn’t hide it. The IRS already has its copy, and the automated matching system will surface the mismatch, usually as a CP2000 notice proposing additional tax plus interest running from the original due date. Accuracy-related penalties can add another 20% on top if the IRS decides income was underreported. Reporting the distribution correctly the first time is always the cheaper path.

If the Form Is Wrong or Never Arrives

Contact the plan administrator first and ask for a corrected 1099-R if a box looks wrong or the distribution code doesn’t match your circumstances. If nothing arrives, or the correction doesn’t come, by the end of February, call the IRS at 800-829-1040 and they’ll reach out to the payer.10Internal Revenue Service. What to Do When a W-2 or Form 1099 Is Missing or Incorrect

If the filing deadline is closing in without a usable form, file with Form 4852 as a substitute. It lets you estimate the distribution figures from your own records.11Internal Revenue Service. About Form 4852, Substitute for W-2, Wage and Tax Statement, or Form 1099-R If the real 1099-R eventually arrives with different numbers, file an amended return on Form 1040-X to reconcile.