Can I give masser through a credit card that offers cash back if a certain amount is spent within a certain amount of time . For example if I have to give $1000 masser and through using the card i will reach the required amount and get back $300 , is that called giving masser ? and if yes does the $300 require masser ?
The money that you gave to tzedakah benefited the poor people or the organization that you supported, so the $1000 is considered tzedakah and maaser. The $300 that you earned as a result would be like any other income that you have, that would need to be “maasered”. So you would give $30 from that $300 that the credit card company gave you.