What is the amount of zakat that must be paid by a family consisting of three married brothers, their parents, and their children, who own a large house they inhabit, another house in India valued at three million Saudi Riyals, a business project with a capital of two and a half million Saudi Riyals, a commercial shop at four million Saudi Riyals, miscellaneous items at one million Saudi Riyals, and jewelry valued at one million Saudi Riyals?

There is no Zakat on a Muslim's residential home or private car, nor on the commercial projects and shops themselves, such as buildings, furniture, and machinery, unless they are intended for sale. Zakat is obligatory on trade goods by appraising the merchandise at the end of the year and paying one-quarter of one-tenth (2.5%). As for jewels, Zakat is obligatory on gold and silver if they reach the Nisab, but there is no Zakat on precious stones used for adornment unless they are for trade. In summary: a Muslim pays Zakat on merchandise, cash, gold, and silver that they own at the rate of one-quarter of one-tenth.