Americans have $27 billion worth of unused gift cards

Americans are sitting on an estimated $27 billion in unused gift cards, with the average person holding $244 in unspent balances.

That’s what a new survey shows from Bankratewhich found that more than two in five adults have at least one unused gift card.

Bankrate said more than one in three U.S. adults lost money because they didn’t keep track of gift cards, either by losing them, letting them expire or not using them before the deal to cease its activity.

Millennials have the highest average remaining balance for unused gift cards at $322. Gen Xers average $255, followed by Baby Boomers at $227 and Gen Zers at $142.

Bank rate said Walmart (WMT) and Starbucks (SBUX) each have more than $1 billion in unused gift cards on their books.

Gift cards were the second most popular holiday gift last year, after clothes, according to the National Retail Federation. Bankrate Senior Industry Analyst Ted Rossman suggested that if you have a gift card at a store you don’t like, consider selling it on a platform like CardCash or Raise.

“Often you can get at least 70 or 80 percent of what it’s worth,” he said in a statement.