IRS Deadline Exposes Retirees to Tax Penalties After Sept. 15

Retirees who withdrew large sums from a traditional IRA before the September 15, 2026, tax deadline face increasing penalties for insufficient federal withholding. The IRS has set a 10% default withholding rate on IRA distributions, which often fails to cover the total tax liability on significant withdrawals. Additionally, the underpayment penalty rate was at 7% annualized for most of 2026, with a dip to 6% in the second quarter. Retirees can mitigate penalties by requesting a new distribution by December 31, 2026, directing more to federal withholding to cover previous shortfalls. This matters because it provides a potential solution for retirees to avoid accumulating penalties on underpayment.

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