Currently, income above roughly $170,000 (a threshold adjusted annually) isn't subject to Social Security payroll tax, meaning very high earners pay a smaller share of their income into the system than middle-income workers. Raising or eliminating this cap would mean high earners contribute a share of income closer to what middle-income workers already pay, a change advocates argue could substantially close the program's projected funding gap. Advocates argue this specific mechanism offers a concrete, actionable path to shoring up the program's finances. In their view, this is a way to strengthen funding without touching benefits at all.