It depends on where/how you got them:
Personal gift:
The gift cards may have been taxable income to the GIVER when you RECEIVED them if a single person gave you more than the gift exclusion amount, which is $19,000 for 2025. Exchanging a cash equivalent item such as gift cards or vouchers for either cash or items is not in itself a taxable act unless you sell them for more than the amount of the "gift".
Taxable: Caveat that if you received them from your employer or as "prize money" then it is considered taxable compensation.
So, work-related cards, prizes, and side hustle gift cards (someone can't pay you cash so they give you a gift card) are income.
That card (to a store you never heard of) from a loving relative is not taxable income.
Good luck!
