It is a current asset.

According to the query of relevant information, current assets include cash, bank deposits, other monetary funds, trading financial assets, notes receivable, accounts receivable, prepaid accounts, interest receivable, and receivables. Dividends, other receivables, and credit card limits are considered current assets.

The available limit of a credit card refers to the maximum amount that can be used by the credit card you hold, including the credit limit and the amount deposited into the credit card.