“The law links the tax credit to household income. So two people whose combined income goes above a certain level will not be able to get a tax credit if they are married and file together. But if they get divorced or stay single they might, individually, be eligible for a premium credit. Giving people pause about marriage could be a big ‘unintended consequence’ of the law, the report says. The committee asked the Joint Committee on Taxation to crunch some marriage numbers. The JCT found that 2 million of the nearly 60 million married couples in the U.S. will end up qualifying for the tax credit.”