A new study says that same-sex spouses are paying more to Uncle Sam than their heterosexual counterparts. The study conducted for CNNMoney by tax specialists says that married gay Americans pay as much as $6,000 per year in taxes.

Since the federal government does not recognize gay marriage, same-sex couples can't combine income and deductions, which would lead to lower tax rates.

The state of New Jersey recognizes civil unions but not same-sex marriage.