Is it permissible for me to take the surplus money without my father’s knowledge?

Question 10:  If my father sent me to buy him something, and, after I had bought it, I still have some money left over, is it permissible for me to take it without my father knowing?

Answer: If, after you had bought those things, there was some money left over from the money that your father gave you… read more here.

Does being in debted exempt one from paying Zakaah?

Question 2: I borrowed 300,000 riyals from the Real Estate Development Fund in order to reconstruct my house where my family and I live. Because I own part of the building, I receive some money as rent from it and I pay the Zakaah due on this money every year. Please clarify whether I should subtract the loan from the amount of money upon which I pay Zakaah,or whether the loan is not regarded as a debt and thus I must add it to the sum upon which Zakaah is due. Please inform me what I should do to act accordingly.

Answer: The correct opinion of Muslim scholars is that it is irrelevant to the calculation of Zakaah whether the money is from a debt or not. The Prophet (peace be upon him) used to send his representatives to collect the Zakaah and estimate the amount of fruit to be paid in Zakaah… read more here.