overtax
verb [ T ]
uk/ˌəʊvəˈtæks/ us TAX
to demand too much tax from someone or to put too much tax on goods:
"We overtax the poor," the Senator claimed.
Food and clothing should not be overtaxed.
to make people, a system, a machine, etc. do more than they can do:
Filling so many jobs at once would overtax the department.