Dear Liz: If someone inherits my retirement account, is there any way they can avoid having their Medicare premiums increased for one year?
Answer: A large-enough retirement account could affect their Medicare premiums for up to 10 years, not just one.
Normally inheritances aren’t taxable, but retirement accounts are the exception. Withdrawals from inherited retirement accounts are usually taxable as income, and most non-spouse inheritors must drain a retirement account within 10 years. Withdrawals from inherited Roth accounts aren’t taxable, but the accounts still must be drained by the inheritor within a decade.
If the inheritor is on Medicare, taxable withdrawals could boost income enough to increase their Medicare premiums, thanks to the income-related monthly adjustment amounts (IRMAA). This surcharge starts once modified adjusted gross income exceeds certain amounts, which in 2025 is $106,000 for single filers and $212,000 for married couples filing jointly.
Anyone who inherits a retirement plan should get advice from a tax pro, but that’s particularly important when withdrawals might affect tax brackets and Medicare premiums. The pro can help determine how quickly or slowly the money should be withdrawn to maximize how much the inheritor gets to keep.