What is the Nisab, how many years of Zakat must be paid from the deceased's estate, which includes a deposit and real estate, and what is the amount of Zakat that must be paid?

Zakat must be paid on the cash assets left by the deceased father for all past years in which zakat was not paid. Zakat is calculated according to the Hijri calendar before the division of the inheritance, along with seeking forgiveness for the deceased and supplicating for him. Saved money is subject to zakat. If it is deposited in an interest-bearing bank, the usurious interest must first be disposed of. Real estate and businesses are not subject to zakat if they are intended for personal use. Zakat is due on cash money if it reaches the nisab, which is approximately equivalent to 85 grams of pure gold, and the amount is a quarter of a tenth (2.5%) for each year zakat was not paid.