Mufti Saab my question is as follows. My parents recently bought a house. In order for it to be done in the Halal way they borrowed money from their children and other family members with their permission as opposed to the bank

Assalamwalakum,

Mufti Saab my question is as follows. My parents recently bought a house. In order for it to be done in the Halal way they borrowed money from their children and other family members with their permission as opposed to the bank. This way it would not go under mortgage or interest and become a Haram transaction. My parent’s take Zakat out every single year in Ramadan however there is never an actual date, it just happens in Ramadan. The house was bought nearly 3 to 4 weeks before the beginning Ramadan. The money that was borrowed by my parents will be given back to all the parties that they have borrowed it from as it is accumulated.1) It is the time of Ramadan, so this year is the Zakat taken out on the amount that is remaining in the bank accounts as of today, or should it be taken out on the amount that existed before the house was bought. As well for the children and other family members, is the Zakat on the amount that sits in the bank right know, or should it be taken out on the amount that used to exist prior to the buying of the house. 2) As well beside money & gold what else is Zakat taken out on?