Q&A: Ask a tax pro before Roth conversion

Dear Liz: I’m almost 70, still working, and I’ve got a decent-size IRA as well as a 403(b) that I plan to move to an IRA when I retire. Because I have a pension and other investments, I don’t think I’ll ever need the money in the IRA and 403(b). Should I convert to a Roth now so my kids (31 and 28) won’t have to pay taxes when they inherit it? I’ve got the cash to cover the taxes for the Roth conversion.

Answer: That would be a generous move, but you should consult a tax pro to make sure you understand the implications.

As you know, converting a pre-tax retirement account such as an IRA, 401(k) or a 403(b) to a Roth IRA can generate a sizable income tax bill. Such conversions can push you into a higher tax bracket and, if you’re on Medicare, also may increase your premiums.

You may want to spread the conversion over several years, converting just enough each year to “fill out” your tax bracket and avoid Medicare surcharges. A tax pro can help with those calculations.