To pay for Medicare for All, Democratic presidential candidates have focused on taxing the rich. But many of the plans they’ve put on the table would require across-the-board tax increases that would hit middle-earners as well as the wealthy, public policy analysts say. None more than Medicare For All. Raising the more than $30 trillion needed to fund Sanders’s health plan over a decade would require doubling all personal and corporate income taxes or tripling payroll taxes, which are split between employees and employers, said Marc Goldwein, a senior vice president at the non-partisan Committee for a Responsible Federal Budget.