RMD income reaches the Medicare calculation later
A taxable RMD received in 2026 generally appears on the 2026 federal return and can affect 2028 Medicare premiums. The actual premium effect depends on the official 2028 IRMAA table, which will be published later, and the rest of the return.
RMD and Roth conversion are separate transactions
An amount required to be distributed for the year generally cannot be rolled over or converted to a Roth IRA. The required distribution must be handled under the applicable rules before evaluating an additional conversion. A conversion can still add taxable income after the RMD has already used part of the desired bracket or IRMAA headroom.
RMD amount depends on the account and age rules
IRS worksheets generally divide the prior year-end account balance by an applicable life-expectancy factor. The required beginning age depends on birth year and current law, and inherited accounts can follow different rules. Use the current IRS worksheet or custodian calculation rather than a generic percentage.
Qualified charitable distributions
An eligible qualified charitable distribution is paid directly from an IRA to an eligible charity and can count toward an RMD while being excluded from income, subject to the current requirements and annual limit. It is not the same as taking a distribution and later making a cash donation.
This guide does not calculate an RMD. The IRS publishes worksheets and current distribution rules; inherited accounts, multiple accounts, employer plans, and first-year timing can require separate treatment.
A practical planning order
- Estimate the required distribution under the current rules.
- Add pensions, Social Security inclusion, interest, gains, and other income.
- Check IRMAA sensitivity with a reasonable buffer.
- Only then evaluate an optional taxable conversion or gain.
- Recheck when CMS publishes the premium table for the affected year.
Sources: IRS RMD worksheets, IRS RMD FAQs, and IRS Publication 590-B.
Last reviewed August 16, 2026.