Is zakat on checks not deposited yet ( passing of a year ) ?
If hawlan e hawl takes place (passing of a year) and a person is sahib e nisab, will zakat be necessary on one’s check which has not been cashed or deposited? Answer: ﺑﺴﻢ اﷲ اﻟﺮﺣﻤﻦ اﻟﺮﺣﯿﻢ In the name of Allah, the Most Gracious, the Most Merciful
If a complete lunar year has passed and one is capable of depositing or cashing the check immediately, i.e. the date written on the check is not a future date, then zakat will be necessary on that check as well on the condition that one possesses the nisab amount.1
Only Allah knows best
Written by Maulana Mohammad Ahsan Osmani Checked and approved by Mufti Mohammed Tosir Miah Darul Ifta Birmingham
 Fatawa Darul Uloom Zakariya: v. 3, p. 116-117 (Zamzam)