President Donald Trump said he wants Congress to pass tax reform legislation before Christmas, in what would be the most comprehensive change to the tax code in three decades. While the administration has said the legislation would mean dramatic tax cuts for millions of American, including middle-class workers and some of the country’s highest earners, the bill would slash deductions, several of which millennials take advantage of, or perhaps may have planned to use in the near future.

One of those deduction is the student loan interest deduction. According to the current tax code, student loan borrowers can deduct up to $2,500. For someone in the 25 percent tax bracket, that amounts to $625 in tax deductions. More than 12 million Americans used the student loan interest deduction in 2015, according to CNBC. Of those 12 million borrowers, 1 in 4 are millennials who owe at least $30,000 in student loans and undoubtedly rely on the current student loan interest deduction.