ANSWER:

Paying extra for the notes that are NOT in use anymore is permissible. 

QUESTION: I know that buying new bank notes by paying more than the actual face value is riba.But I don’t know about the notes that are now rare or out of the market. So people pay more for them for collection or to sell. 

Riba | October 9, 2022 1:48 am
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QUESTION: My husband took a loan through a bank and invested it with a property dealer (bought plots to sell later). Loan instalment is paid monthly and it’s a four years long procedure. Now it’s been more than a year that we have invested that money. Do we have to pay zakat on that investment and if yes then how to do the calculation as we are still paying the instalments?
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QUESTION: Kindly clarify if rent obtained from institutions like banks and insurance companies both of which deal with Riba, is halaal or haraam.