Add-on credit cards, also known as supplementary credit cards, are issued against a primary credit card and come with similar credit limits and benefits as that of the primary card. The add-on card is offered to the family members of primary cardholders, like his/her parents, spouse, or children above the age of 18. Most card issuers offer add-on credit cards as lifetime free, i.e., without any joining or annual charges.
However, one important thing to remember while applying for an add-on card is that, although the card functions independently, the primary cardholder remains responsible for all transactions and repayments.














