Last year, I had significant capital losses in a cash management account held at Merrill Lynch. I used the $3,000 last year as a way to reduce my taxable income and I still have several thousands that I can roll into 2019 tax year. My question is, can I use those losses to offset a conversion of funds from my traditional IRA to my roth IRA? Assuming I transfer 10,000 dollars from my traditional IRA into my roth, and assuming I have a tax rate of 25%, that $2,500 would essentially be nullified by my $3,000 capital loss carryover? Am I correct with this assumption or do the capital losses have to come from one of the ira accounts?