non-deferrable
The car market is hit particularly hard in times of financial hardship, as cars are the largest deferrable good, so that these purchases can be postponed easily.
The country's land tax is usually deferrable until land is actually sold, when it is paid by the buyer.
When households are feeling the pinch, it shows up in lower sales of some expensive items which are a deferrable purchase.
I have about $40,000 of tax deductions for tuition fees that I think are deferrable indefinitely.

SMART Vocabulary: related words and phrases

Immediately
(right) off the batidiom
a stitch in time (saves nine)idiom
ado
at/in one fell swoopidiom
bat
cuff
directly
fell
forthwith
glance
instantaneous
instantaneously
instantly
no sooner said than doneidiom
non-deferrable
soon
straight
swiftly
swiftness
waste