
ProPublica: “If the person who had owned the stock had sold the stock himself, he would’ve been taxed on the appreciation in the stock,” said Ellen Aprill, a tax law professor at Loyola Marymount University. “Whereas if you give it to the 501(c)(4), there’s no charitable deduction for giving the money, but you avoid the tax on all of that appreciation.”
Source: ProPublica
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