duty differential
noun[C]
ECONOMICS,TAX,COMMERCEukusadifferencebetween theratesoftaxchargedin acountryonsimilartypesofgoods:
The Governmentannouncedawideningof thedutydifferentialinfavourofcleanerfuels.
adifferencebetween theratesoftaxchargedby differentcountriesonsimilargoods:
TheydiscussedtheproblemofdutydifferentialsbetweenNorthernIreland and the Republic of Ireland.