Retirement tax questions

Thanks for your reply and help.  I had 15% federal taxes withheld at the time of the traditional IRA conversion to my Roth in May of 2024. The amount of the conversion was about $33,722 and the federal withholding was $5058.

I also paid $1000 Estimated payments in April and in $1000 in June.

? So I don’t understand the penalty of 6% on the Roth conversion amount of about $26,000.

Thank You!