According to an article on the Copenhagen Post site, Denmark's royal family overspent its state-funded budget last year by more than 2 million kroner (that's approximately $350,000 U.S. dollars). The royal family reportedly made up the difference out of their own pockets.
I haven't linked to the article because linking directly to news articles has been ruled illegal in Denmark. Yes, I know that's stupid. If you visit cphpost.dk you may be able to find the article for yourself.