Almost 80% of gift cards remain unused one year after receiving them. On average, around 10 to 19% of gift card balances are never redeemed, and 6% are never used at all. Over a 10-year period from 2005 to 2015, the amount of unused gift card balances reached a whopping $45.7 billion! And with the increasing popularity of gift cards, this number is only expected to grow (source).