Consumer credit increased by $18.4 billion in December to $3.841 trillion, the Federal Reserve reported Wednesday.
In November, consumer credit rose a revised $31.0 billion to $3.823 trillion.
Economists polled by IFR Markets predicted a $20 billion increase in the month.
Revolving credit outstanding in December rose $5.1 billion to $1.028 trillion from $1.023 trillion the previous month.
Non-revolving credit rose $13.3 billion to $2.813 trillion from $2.799 trillion.
Revolving credit includes credit card debt. Non-revolving debt includes automobile loans, loans for mobile homes, education, boats, trailers, or vacations.