- 1overtax somebody/something/yourself to do more than you are able or want to do; to make someone or something do more than they are able or want to do to overtax your strength Take it easy. Don't overtax yourself.
- 2overtax somebody/something to make a person or an organization pay too much tax
NAmE//ˌoʊvərˈtæks//Verb Forms present simple I / you / we / they overtax
he / she / it overtaxes
past simple overtaxed
-ing form overtaxing