Please note, for those entering 1099-R RMD amounts, you may find Turbo Tax seemingly increasing your taxes due or reducing your refund at the top of the page. For me it showed that instead of a refund, I owed tax.
Resolution: Enter your 1099-R, Continue
Complete all following screens until you get to "Let's get more information about your Required Minimum Distribution (RMD)."
When you enter : RMD due by Dec. 31, 2025, your Tax Due may jump higher at the top of the Turbo Tax page, even reversing a refund.
Just Continue to the next page and enter the appropriate amounts for "How much of this distribution applied to your December 31, 2025 RMD?"
When I entered "The entire distribution applied to the December 31, 2025 RMD", then my tax due self-corrected, again showing my Federal Refund.
Although it gave me a heart attack in the meantime.
I suggest that Turbo Tax put both of these questions on the same page and calculate AFTER
"How much of this distribution applied to your December 31, 2025 RMD?"
I had even started trying to look for help topics and community comments on the perceived calculation problem before getting to the next page and realizing that the increase to Federal Tax Due was going to go back down to reflect my Refund Due. Unnecessarily stressful.
