Hi. Last year when I changed jobs, I rolled my previous employer’s 401k into an IRA. When the end of the year came around, I thought, “Oh I should contribute my $5500 for the 2018 tax year,” and I did, out of my own checking account. Now my tax preparer says that the mix of the pre-tax money in the Rollover IRA with my post-tax contribution money will make my taxes more complicated and I have to keep track of what the pre-tax money is and what the post-tax money is. I don’t know where to start with that since both of those amounts have been growing with the market this year. How do people manage an IRA with both pre-tax and post-tax money? Should I take that $5500 contribution out of my Rollover IRA so as to not mix the two? I’d never heard of this before and didn’t know it might cause problems. I thought I could just stick money in that Rollover IRA as long as I wasn’t taking any out until my retirement.