That's according to new data from NerdWallet's 2017 Consumer Holiday Shopping Report, which analyzed spending and behavior trends of more than 2,000 Americans aged 18 and over.
And holiday-induced debt is a growing problem. Although survey respondents say they plan to spend roughly the same amount as they spent last year, 24 percent of shoppers say they overspent in 2016, while 27 percent admit to not making a budget at all.
Even a budget is only a good start.
"There's this myth that planning ahead and budgeting always ensures you don't overspend. But in reality, creating and even sticking to a budget won't make you immune to holiday debt," Courtney Jespersen, a consumer savings expert at NerdWallet, says in the survey. "It's so important to set a realistic ceiling for your spending."