surtaxes

n.

（对高收入所收取的）附加税( surtax的名词复数 )；

1. The legislature passed a law to abolish the surtax.
   立法机关通过了一项废除附加税的法令。
2. Our current individual income tax rate is based on the surtax system.
   我国现行的个人所得税采用的是超额累进税率制。

Impôts locaux, de taxes en taxes et surtaxes, TROP c'est TROP !... Faut-il une insurrection fiscale ?
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1945 Chap. 0557. An Act Further Extending Temporary Surtaxes On Certain Subjects Of Existing Taxation.