In effect they are. When you gain the stimulus money from progressive taxes but return the money in a relatively flat (less progressive) way (like $X dollars f

In effect they are. When you gain the stimulus money from progressive taxes but return the money in a relatively flat (less progressive) way (like $X dollars for everyone meeting a fairly common threshold) then the velocity of the money changes. When goods/service/estate remains equal, change in velocity and change in money printed both have the inflationary/deflationary response.