From CNN Money:
"Romney and his wife, Ann, gave just over $4 million to charity, the campaign said. The amount includes more than $1 million in cash to the Church of Jesus Christ of Latter Day Saints and more than $200,000 to the Tyler Foundation, which serves families of children undergoing treatment for epilepsy. They also reported more than $900,000 in non cash contributions.
But the couple chose to deduct only $2.25 million of their charitable contributions. The reason was "to conform" to Romney's statement last month that he never paid less than 13% in income taxes over the past 10 years, Brad Malt, a lawyer who presides over the Romneys' blind trust, said in a statement.
Indeed, if the Romneys had declared the full $4 million it likely would have pushed their effective tax rate below 13%, said tax attorney Martin Press of the law firm Gunster.
"It is quite unusual for people not to take tax deductions that they're entitled to," Press said. '