THE CHILD TAX CREDIT

—The child tax credit provides up to $1,000-per-child to parents with children younger than 17.

—The credit is gradually reduced for individuals making more than $75,000 a year and married couples making more than $110,000 a year.

—Millions of low-income parents who don’t make enough money to pay federal income taxes can still claim the credit. These families get payments similar to tax refunds when they file their tax returns. This is scheduled to end in 2018.

—Nearly 37 million taxpayers claimed the child tax credit in 2012.

Associated Press

More families with higher incomes could claim the popular child tax credit under a bill that won approval Friday in the House. But in a dispute that divides Republicans and Democrats, millions of the poorest low-income families would still lose the credit in 2018, when enhancements championed by President Barack Obama are set to expire.

The bill would gradually boost the amount of the $1,000-per-child tax credit by tying it to inflation, so it would go up as consumer prices rise. It also aims to make a dent in illegal immigration by prohibiting people without Social Security numbers from claiming a portion of the credit reserved for low-income families.

With nearly all Republicans voting in favor and most Democrats opposed, the bill cleared the House by a vote of 237-173. The White House threatened to veto the bill, though the Democratic-controlled Senate is unlikely to pass it.

House Republicans say the bill would strengthen the tax credit by increasing it as inflation rises, and by making it available to even more middle-income families.

“It is time we make some simple improvements to the child tax credit, so it keeps up with the cost of raising children,” said Rep. Dave Camp R-Mich., chairman of the tax-writing House Ways and Means Committee.

The White House said the bill favors high-income taxpayers over the poor, while adding $90 billion to the budget deficit over the next decade.

Five million of the poorest low-income families would lose the credit in 2018, the White House said. An additional 6 million low-income families would see the amount of their tax credits reduced.

“The new Republican rhetoric on poverty is no match for the deeply troubling actions they have repeatedly taken, and continue to take, with this legislation today,” said Rep. Sander Levin of Michigan, the senior Democrat on the Ways and Means Committee.

House Republicans dispute the Democrats’ argument, saying the bill is silent on low-income families. Current law calls for Obama’s enhancement for low-income income families to expire, which would happen under the Republican legislation.

Under current law, the child tax credit is gradually reduced and phased out for individuals making more than $75,000 a year and married couples making more than $110,000 a year.

House Republicans say the income limit for married couples amounts to a marriage penalty because it’s less than double the limit for single tax filers.

The bill would increase the income threshold for married couples to $150,000, allowing more families with higher incomes to claim it. The bill would index the income limits to inflation, meaning they would increase over time as consumer prices rise.

The amount of the credit would also increase with inflation, rising above $1,000 as consumer prices go up.

These changes would increase savings for taxpayers by $115 billion over the next decade, according to the nonpartisan Joint Committee on Taxation, which analyzes tax bills for Congress.