Originally Posted by
farwest101
The IRS has repeatedly ruled points are a rebate of monies you already paid taxes on - hence not taxable.
The only possible exception to this is if the card is used to purchase something deductible (i.e. for business purposes, or a charitable donation). Then, the value of the deduction should (at least in theory) be reduced by the value of the credit card points received, just as it would be if the vendor gave you a rebate.