Add-on Credit Cards are additional Credit Cards that are issued against a primary Credit Card. They are a form of secondary or supplementary Credit Card.
An add-on card, as the prefix suggests, is an extension of the credit card benefits to the immediate family members of the cardholder. The expenses incurred by the add-on benefactors are borne by the primary credit cardholder.
Generally, there is no joining fee for the supplementary cards. The primary credit cardholder is entitled to a limited number of add-on cards, typically 2-3, for free. There might be an annual fee, less than or equal to the primary credit card, for each add-on card. The credit limit of the add-on credit cards is set equal to that of the primary credit card.
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