Is zakat obligatory on the deceased's estate, which includes land purchased in installments and gold on which zakat was not previously paid? And what is the method for calculating the zakat on the land? And is it obligatory if the deceased's intention was to sell it? And how is the value of the overdue zakat due on it estimated?

If the father bought the land with the intention of selling it, then zakat is due on it if its value reaches the nisab. The value of the installments is deducted from it if he has no other money to pay them, and the remainder is zakat-able if it reaches the nisab. However, if he bought it with the intention of acquiring it or was hesitant, then there is no zakat on it.

Zakat is obligatory on gold if it reaches 85 grams. If zakat became obligatory on the father before his death, it must be paid out before the distribution of the inheritance. Otherwise, each heir is responsible for the zakat on his share if it reaches the nisab and a full year has passed over it.

If zakat has not been paid for years, it is calculated according to its nisab value for each of those years. If the land was bought with the intention of preserving wealth and with the intention of selling it, then zakat is obligatory on it. However, if the intention to sell arose after the purchase, there is no zakat on it according to the majority of scholars. As for gold, zakat is obligatory on it in all cases if the conditions for its obligation are met.