Contrary to popular belief, marriage penalties are far outweighed by marriage bonuses.

The study found that 21 million couples, or 41 percent of all couples filing jointly, actually received a marriage bonus, which averaged $1,274.

The marriage penalty is not universal; some couples actually receive a marriage bonus.

The marriage bonus is greatest when only one person in a household works outside the home.

But at all other income levels, more white couples receive a marriage bonus than pay a marriage penalty.

"It eliminates some marriage penalties and increases some marriage bonuses."

Both provisions would apply to families whether they now pay a marriage penalty or receive a marriage bonus.

Additionally, a marriage bonus is expected - sometimes it's a car or extravagant jewelry; other times it's cash.

They benefit from what's known as a marriage bonus.

Another 21 million couples, or 41 percent, had a marriage bonus, averaging $1,274.