Is it permissible to use a credit card from the National Bank of Egypt for online purchases, with the full amount due being deducted from the salary account, without the option of an interest-bearing account in case of late payment?

Deducting the due amounts directly is permissible. However, deferred deductions with a fee are considered an interest-bearing loan, which is forbidden. For a credit card to be permissible, the issuance fee must be equal to the actual cost, and the bank must be Islamic. The final ruling depends on the terms of the credit card agreement. The conditions for online sales must be observed when purchasing with the card.