1. Mormon Tithes
Mormons are expected to fork over 10 percent of their income to the Church of Latter Day Saints. And that fact leads us to two theories.
First, Rachel Zoll of the Associated Press speculated that Romney doesn't want to remind evangelical Christians that he belongs to what many consider a non-Christian “cult.” “The Republican candidate's commitment to the church is a double-edged sword in the contest for the presidential nomination,” she wrote. “Many GOP voters are Christians who do not consider Mormons to be part of historic Christianity. Romney supporters worry that details of his church donations contained in the tax returns could fuel opposition to him based on his religion.”
But it may be the other way around – perhaps he doesn't want to piss off Mormons. After all, the right-wing Daily Caller reported that in 2010 and 2011, the two years for which Romney released partial returns, it looks like the former Mormon bishop under-tithed the church, paying 7 percent of his income one year and 9.7 percent over the two-year period. As the Caller noted, “Romney recently told Fox News Sunday host Chris Wallace, 'I made a commitment to my church a long, long time ago that I would give 10 percent of my income to the church, and I’ve followed through on that commitment. So, if I had given less than 10 percent, then I think people would have to look at me and say, ‘Hey, what’s wrong with you fella — don’t you follow through on your promises?’”