I thought it was a glitch, but it is not. Here is what I found out: the IRS makes changes to people's W-4 forms every year, lowering federal withholding while increasing Social Security to offset it. My company did this quietly, and most people do not check their W-4 annually. They do this so they don’t have to refund a large amount of money during tax season. You will need to make your own calculation and pay additional taxes to IRS per paycheck.
