Millions of Americans with traditional IRAs and 401(k) plans now face a hard withdrawal deadline once they turn 73, and the financial penalty for missing it can eat a quarter of the amount they should have taken out. The SECURE 2.0 Act, signed into law as Division T of Public Law 117-328, raised the required minimum distribution starting age from 72 to 73 for the relevant birth-year cohorts and cut the penalty for a missed distribution from the old 50% rate to 25%. That 25% excise tax still represents a steep cost for retirees who overlook or delay their withdrawals, especially those with six-figure account balances.
Why the age-73 RMD deadline carries real financial risk
The penalty structure is straightforward but punishing. Under Section 4974, the excise tax equals 25% of the gap between what a retiree was required to withdraw and what was actually distributed. The tax falls on the account owner, not the plan administrator or custodian. For someone whose RMD was $20,000 and who withdrew nothing, that gap triggers a $5,000 tax bill on top of the income taxes owed on the distribution itself.
The first RMD must be taken for the calendar year a person reaches age 73, though the IRS allows a grace period: the initial distribution can be delayed until April 1 of the following year. That delay, however, creates a trap. A retiree who pushes the first withdrawal into the next calendar year must then take a second RMD by December 31 of that same year, stacking two taxable distributions into one tax return and potentially pushing income into a higher bracket.
One question that federal data has not yet answered is whether direct, birth-year-specific IRS reminders would reduce the number of missed deadlines. Plan administrators send notices, but those vary in timing and clarity. No published IRS enforcement statistics show how many retirees actually incur the penalty each year under the post-SECURE 2.0 rules, leaving a gap in understanding how well the current notification system works.
How SECURE 2.0 changed the penalty and the correction window
Before the SECURE 2.0 Act took effect, the excise tax on a missed RMD stood at 50% of the shortfall, one of the harshest penalties in the tax code. Analysis from the Congressional Research Service confirms that the new law cut that baseline rate to 25% and introduced an additional reduction: if a retiree corrects the missed distribution within a two-year window, the penalty drops further to 10%.
The IRS formalized the mechanics of that correction framework through administrative guidance, including Notice 2024-35, published in Internal Revenue Bulletin 2024-19, and final regulations in IRB 2024-33. Those documents spell out the conditions under which the reduced 10% rate applies, generally requiring that the missed amount be distributed and that the taxpayer file Form 5329 to report the shortfall and compute the excise tax. In some cases, the agency can waive the penalty entirely if the taxpayer demonstrates that the failure was due to reasonable error and that steps are being taken to remedy it.
These changes softened the consequences of an honest mistake but did not eliminate the core obligation. The tax is still assessed on the undistributed portion of the RMD, and it remains separate from any income tax due when the money is eventually withdrawn. For retirees with large balances, even the reduced 10% rate can translate into thousands of dollars if an oversight is not caught quickly.
Practical implications for retirees and planners
The new age-73 threshold means that retirees must pay close attention to their birth year and the calendar. Those turning 73 this year need to confirm the exact amount of their RMD, which is generally calculated by dividing the prior year-end account balance by a life-expectancy factor from IRS tables. Households with multiple IRAs can often aggregate their RMDs across those accounts, but 401(k) plans typically require separate calculations and withdrawals from each plan, adding complexity.
Financial planners now emphasize creating an RMD checklist well before a client’s 73rd birthday. That may include coordinating with custodians to set up automatic withdrawals, verifying beneficiary designations, and projecting the tax impact of stacking two distributions into one year if the first RMD is delayed until the following April. For some retirees, intentionally taking the first RMD in the year they turn 73, rather than using the grace period, can smooth taxable income and avoid bracket creep.
Advisers also note that RMDs interact with other parts of the tax system. Higher taxable income from distributions can affect eligibility for certain credits and can influence how much of a retiree’s Social Security benefit becomes taxable. In addition, income-driven Medicare premiums are based on modified adjusted gross income, so a large RMD in a single year may raise health-care costs two years later.
Tax professionals encourage retirees who suspect they have missed an RMD to act quickly rather than wait for an IRS notice. The agency’s general guidance on retirement distributions, available through the main IRS website, outlines the forms and procedures for correcting errors and requesting penalty relief. Prompt action can mean the difference between a waived penalty, a 10% charge, or the full 25% hit.
Ultimately, the SECURE 2.0 changes represent a trade-off: more time before withdrawals must start, but a continued expectation that retirees monitor their accounts closely. With limited public data on how many people still miss the deadline, policymakers and practitioners alike are watching to see whether the combination of a higher age, lower penalties, and clearer correction rules will lead to better compliance-or whether additional outreach will be needed as more Americans cross the age-73 threshold.
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