Updated July 28, 2026. Quick answer: No. A required minimum distribution cannot be converted. And the ordering rule matters: in a year you owe an RMD, the first dollars distributed are treated as satisfying it — so the RMD must be taken before any conversion.
The ordering rule catches people
You cannot convert first and take the RMD afterward. The first dollars out of the account in an RMD year are deemed to be the RMD, so an attempted conversion of those dollars is an invalid conversion — a problem requiring correction rather than a neutral event.
The sequence is: take the full RMD, then convert whatever additional amount makes sense.
This is one of the strongest arguments for converting in the years before RMDs begin. Once they start, every conversion sits on top of an amount you were forced to take, in the same year — compounding the bracket problem rather than smoothing it.
The window that closes
The gap between retiring and the required beginning date is usually the widest-bracket period a person will ever have: earned income has stopped, Social Security may not have started, and RMDs have not begun. That window is finite and it does not reopen.
Which is also why converting affects what your heirs inherit — a Roth has no lifetime RMDs, so the account keeps compounding instead of being drawn down.
Sources
IRC §408A (Roth IRAs); IRC §408A(d)(3) (conversions); IRC §1411 (net investment income tax); IRC §86 (taxation of Social Security benefits); IRC §6654 (estimated tax); Tax Cuts and Jobs Act (2017) §13611 (repeal of conversion recharacterisation). Cross-checked July 2026 against professional analyses. Indexed thresholds are described rather than asserted, because they change annually.
This states what the cited authority says. It is not tax advice, and a conversion interacts with the rest of your return in ways one page cannot see.