Is the Wealth of Muslim Minors Subject to Zakât?
Yes. Adulthood, unlike Islam’s other religious obligations, is not a limiting condition for Zakât. Since Zakât is the right of the poor in the ‘wealth’ of the rich, neither age nor mental competence applies. Zakatability, meaning the three conditions making Zakât on wealth due, is the only prerequisite for its payment, whether an adult, a minor, or the insane hold it. The guardian of a child, an orphan, or a mentally incompetent person is obligated to pay Zakât on their behalf from their wealth if it is at or above the minimum threshold (nisâb) (Fiqh-us-Sunnah, 9; Fiqh az-Zakât, 57).