Under his own proposal, Mitt Romney would pay half what he would under President Barack Obama's tax plan. For a man of Romney's means, that could save almost $5 million a year.
Obama isn't as loaded as Romney but is still well-off. For Obama, losing re-election could provide a tax windfall. He'd save as much as $90,000 a year if Romney's plan were enacted rather than his own tax-the-rich vision.
Two nonprofit research groups, the liberal-leaning Citizens for Tax Justice and conservative-leaning Tax Foundation, did the calculations, based on the most recent completed tax returns released by the candidates.