Definition of sales tax in US English:
 sales tax
nounˈseɪlz ˌtæksˈsālz ˌtaks
A tax on sales or on the receipts from sales.
 Example sentencesExamples
-  The traditional tax system of Castile, with its reliance upon sales taxes and a direct tax on the tithe proved ill suited for the natural resource based economy of New Spain.
 -  But people who live in states that collect income taxes and sales taxes must choose which one to deduct, leaving roughly half to a third of their state tax obligation undeductible.
 -  Shift the burden more to the wealthy by reducing property and sales taxes and imposing state income tax.
 -  In any case, of course, all education costs come from the same taxpayer whether collected through income taxes, sales taxes or property levies.
 -  Thus school district funding is tied to the sources of state general funds - typically receipts from sales taxes and income taxes.