Found 2 items, similar to surtax.
English → English (WordNet) Definition: surtax surtax n : an additional tax on certain kinds of income that has already been taxed [syn: supertax] v : levy an extra tax on; “surtax luxury items that cost more than $1,000”
English → English (gcide) Definition: Surtax Surtax \Sur"tax\, n. An additional or extra tax. [1913 Webster] Surtax \Sur*tax"\, v. t. To impose an additional tax on. [1913 Webster]