roth

I am 75. I rolled over my 401k's to a rollover IRA many years ago. Now I want to transfer $50k from my Schwab IRA to my Schwab Roth IRA. I do not want to have the tax withheld. I assume I can pay the tax later with the quarterly payments. I also took my RMD of $12,450 back in March, 2023. I believe I report this on form 8606.

Is this correct. ?