An assessment or tax imposed by law for the relief or support of the poor.(noun)
The Century Dictionary (Public Domain)
Use "poor-rate" in a sentence
"So when the sacred months have passed away, then slay the idolaters wherever you find them, and take them captives and besiege them and lie in wait for them in every ambush, then if they repent and keep up prayer and pay the poor-rate, leave their way free to them; surely Allah is Forgiving, Merciful."
"He set aside certain sums for charity to be paid by every Believer and he was the first to establish a poor-rate"
"Thus Al-lslam is, as far as I know, the only faith which makes a poor-rate (Zakát) obligatory and which has invented a property-tax, as opposed the unjust and unfair income-tax upon which England prides herself."