(2) I have taken a credit card from bank by which I can take loan from bank for 40 days and if I pay it back within 40 days I will not be charged any interest. Bank takes only charges of this facility say Rs 500/= per annum. Is this transaction lawful?
بسم الله الرحمن الرحيم
(1) Yes, it is allowable to pay income tax with interest money.
(2) If no interest charge is levied then it is allowable to transact with credit card.
Allah knows Best!
Darul Uloom Deoband