Definition of surtax
1 : an extra tax or charge
2 : a graduated income tax in addition to the normal income tax imposed on the amount by which one's net income exceeds a specified sum
From the M-W Editors
First Known Use of surtax
1881
SURTAX Defined for English Language Learners
surtax
play
noun
Definition of surtax for English Language Learners
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: a tax that is charged on income which is more than a certain amount and that is charged in addition to the normal income tax
Law Dictionary
surtax
play
noun
sur·tax
\ˈsər-ˌtaks\
Legal Definition of surtax
: an additional tax over and above a normal tax
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