A retiree who forgets to pull the required amount from a traditional retirement account faces one of the steepest penalties in the tax code, but it is smaller and more forgiving than it used to be. The excise tax for missing a required minimum distribution now runs up to 25% of the amount that should have been withdrawn, down from the 50% that stood for decades, and it falls to 10% for anyone who fixes the shortfall quickly. The change softened a notoriously harsh rule, yet the penalty still lands on the missed dollars themselves — not on the tax those dollars would have generated.
What the required withdrawal is and when it starts
Traditional IRAs and most workplace retirement plans are tax-deferred, not tax-free, and the government eventually requires the money to come out so it can be taxed. Under current rules, a required minimum distribution must generally begin once an account owner reaches age 73, with the amount recalculated each year from the account’s year-end balance and an IRS life-expectancy factor. The obligation applies to the owner of a traditional IRA and to many inherited accounts, though Roth IRAs are exempt during the original owner’s lifetime.
The first year carries a small timing trap. An owner reaching the required age gets a one-time deferral, allowed to delay that initial distribution until April 1 of the following year — but doing so forces two distributions into the same calendar year, since the second year’s withdrawal is still due by December 31. A retiree who uses the grace period without planning for the doubled income can push themselves into a higher bracket or trigger other income-based charges in a single year.
Each account type has its own handling. A person with several traditional IRAs can total the required amounts and take the full sum from any one of them, while workplace plans such as a 401(k) generally must each satisfy their own distribution separately. That distinction is a common source of accidental shortfalls, because a retiree who correctly aggregates IRAs may wrongly assume the same flexibility applies to an old employer plan.
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How the 25% penalty drops to 10%
When a distribution is missed, the tax is assessed on the shortfall. According to the IRS, the additional tax is 25% of the amount that was not withdrawn on time, and it is separate from the ordinary income tax that will still be owed once the money is actually taken. A retiree who was supposed to withdraw $20,000 and took nothing faces a $5,000 excise on top of the regular tax on the eventual distribution.
The rate is cut when the mistake is corrected promptly. If the account owner withdraws the missed amount during the correction window — generally by the end of the second tax year following the year the distribution was due — the 25% tax is reduced to 10%. On the same $20,000 shortfall, that turns a $5,000 penalty into $2,000, a meaningful reason to catch and fix the error rather than wait for the IRS to raise it.
Both the penalty and any reduced rate are reported on Form 5329, which is filed with the federal return to calculate the excise on the missed distribution. The form is also where a taxpayer claims the lower rate after taking the corrective withdrawal, so skipping it can leave a retiree exposed to the full charge even when the shortfall has already been made up.
The waiver, the deadline pressure and the cost of waiting
The tax is not automatic in every case. The IRS may waive the excise entirely when the missed distribution resulted from reasonable cause and the account owner takes the corrective withdrawal and files Form 5329 with an explanation. A serious illness, a death in the family, or an error by a financial institution are the kinds of circumstances the agency has historically accepted, though the waiver is discretionary rather than guaranteed, and it depends on the shortfall actually being fixed.
The correction window is finite, which is what gives the reduced rate its urgency. Because the 10% rate is tied to withdrawing the missed amount within roughly two years of the original deadline, a retiree who lets a shortfall sit unaddressed can lose the chance to cut the penalty and be left with the full 25% — plus the ordinary income tax still due. The relief rewards speed, and the cost of delay is not just the higher percentage but the risk that the window closes before anyone notices.
The practical lesson runs deeper than any single missed year. A retiree juggling multiple accounts, an inherited IRA, or the doubled-distribution trap of the first year is most exposed, and the penalty is calculated on the untaken principal regardless of how modest the eventual tax would have been. The reduced rates make a fast correction far cheaper than an ignored one, but the surest position is a distribution taken on schedule each year — because even a forgiving penalty is still a charge on money the retiree was always entitled to withdraw.
This article was researched and drafted with the assistance of artificial intelligence.
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