Greater confidence among Americans has led to a surge in household debt not seen since the recession began, according to new figures from the Federal Reserve Bank of New York.
Mortgages, credit cards, auto loans and student loans together rose $241 billion, or 2.1 percent, to a total of $11.52 trillion between October and December. It is the biggest quarterly rise since 2007.
(Read more: Frozen economy: All weather or something else?)
Mortgage balances, which form the bulk of household debt, swelled $16 billion in the fourth quarter of 2013 from a year earlier. A decline in the number of bankruptcies and foreclosures mostly fueled the increase.
Credit-card balances rose by $4 billion from the previous year, auto-loan balances rose by $80 billion, and student-loan balances rose by $114 billion.
The numbers indicate Americans are more willing to borrow than they have been over the last several years, though other statistics indicate a fair amount of caution.
For example, new mortgages and new auto loans fell—to $452 billion and $88 billion, respectively—though higher interest rates are likely responsible for the declines.
The only other major category to see a decline was the home equity line of credit (HELOC), which dropped by $6 billion to $529 billion.
(Read more: Did stimulus work? Five years later debate rages on)
Student debt is on the rise again, with outstanding balances up $53 billion to $1.08 trillion in the fourth quarter. However, delinquency rates on student debt is dropping as well, another good sign. The number of loans behind in payments by 90 days or more dropped 0.3 percent in the third quarter.
Overall household delinquency rates also dropped 0.3 percent to 5.0 percent in the three months to December 31, extending a post-recession trend.
—By CNBC.com with Reuters