New inherited IRA rules took effect in 2025, creating potential tax traps for beneficiaries who don't understand the changes. The 10-year rule requires most non-spouse heirs to empty inherited accounts within a decade, even for Roth IRAs, with penalties reaching 25% for missed required minimum distributions.

The IRS provided a grace period from 2020-2024 as regulations were finalized, but now the rules are in full force. Beneficiaries must take annual RMDs if the original owner had started them, with the 2025 distribution due by December 31. Missing these deadlines can trigger severe penalties, though the IRS offers a reduced 10% penalty if corrected within two years.

Traditional IRA withdrawals count as ordinary income, potentially pushing heirs into higher tax brackets with multiple years' worth of distributions compressed into a short timeframe. Vanguard recommends equal distributions over the 10-year period to manage tax brackets effectively. Exceptions exist for those already in the highest bracket or with fluctuating incomes who might time larger withdrawals strategically. The key takeaway: beneficiaries need immediate action to avoid costly mistakes under the new regime.