FYI I found a really-slick tool the IRS provides that asks you fairly-simple questions and then tells you if any portion your Roth IRA Distribution is taxable (non-qualified).
You reach it by going to IRS.gov. Type ITA (Interactive Tax Assistant) in search box. First returned entry says “recommended by IRS – Interactive Tax Assistant (ITA). Click on that link.
Simply scroll thru the topics listed on 1st page of ITA. You'll see a section called Retirement. Under it you'll see a line saying “Is my Roth IRA distribution taxable?”. Click on that.
Here's the straight-up link fyi https://apps.irs.gov/app/IPAR/screen/IPAR_1/en-US/summary?user=guest
