The page your referenced is highly misleading, as it does not include a lot of relevant facts. That's why it's not safe to go by what a third party website may say. The only taxing authority at the federal level is the IRS, and the only valid, trustworthy and complete interpretation of federal tax law is on the irs.gov website.
I point you to tax topic 409 at https://www.irs.gov/taxtopics/tc409 where it clearly states, "Some or all net capital gain may be taxed at 0% if you're in the 10% or 15% ordinary income tax brackets." Emphasis on the word "may" is mine. A $72K gain alone puts you in the 22% tax bracket, weather you're filing MFS or MFJ or single. The only way you would pay 0% taxes on the gain, is if it was less than $9,526 if filing single or MFS, or less than $19,051 if filing joint.
I saw on the Yahoo Finance website where it says capital gains for single is zero for gains/income less than $38K Yet Forbes says it's 12% if between $9,526 and $38,700. All these third party websites have their own interpretation of the new tax laws. They're worthless and meaningless, not to mention wrong much of the time.
