you probably have a high wage profession, and you max out FICA etc. and stop paying payroll taxes around April every year. You don't like the income uptick at that point cuz you're just so darned happy to pay payroll taxes? There's a line on the form, you could throw in some more. But housekeepers are also self-employed and those taxes fall much more heavily on them. While they are in a lower tax bracket and pay less as a percentage of their income tax, payroll taxes don't work that way (till somebody chimes in to say "no, Portland Oregon is absolutely confiscatory on this score, we practice Bolshevism!" which would be missing the point)

I seriously don't mind living in America and paying taxes here but, but when better and more efficient tax regimes are available, or when socialist tax proposals derail local economies, I seriously want to educate people about them.