The very obvious impost, first of all, is on domestic consumption for households.
From the cooberpedyregionaltimes.wordpress.com
They would be an impost on those who make the least use of commuter transport.
From the nzherald.co.nz
As a result, more and more people try to escape what they see as an onerous impost.
From the economist.com
The bottom-most part of the arch, called the springing, rests on the impost.
From the en.wikipedia.org
This compared with a carbon tax impost after assistance of $19 per tonne.
From the brimbankweekly.com.au
It is understood that this impost could put planned long-term investments in the project in doubt.
From the theaustralian.com.au
A huge impost could bring unstuck favourite Luckygray in today's main event, the Railway Stakes.
From the couriermail.com.au
We consulted our travel agent, who said we could change the dates of our travel for a $554 impost.
From the couriermail.com.au
Australia makes no impost on pension benefits after the age of 60.
From the couriermail.com.au
More examples
Customs: money collected under a tariff
Springer: the lowest stone in an arch -- from which it springs
A tax, tariff or duty etc. that is imposed. Unlike taxes, tariffs, or duties, the primary purpose of an impost is to dissuade countries from discriminating against the imports or shipping of other nations. If the trade is non-discriminatory, then no impost is generally levied. ...
(Imposts) Taxes or duties; taxes levied by the government on imported goods.
In architecture, the horizontal moulding or course of stone or brickwork at the top of a pillar or pier.
A tax, especially a tax on imported goods
A projecting moulding supporting an arch
A tax or tariff. (This is not a commonly used word.)