U.S. Budget Deficit Increasing Again
Some of this increase reflects calender effects as December 1 fell on a weekend this year, meaning that payments that last year were made in December were now made in November. However, it should be noted that the effect this had in temporarily boosting spending were also reflected in a boost to revenues, so the net effect of adjusting for this isn't as big as the $17 billion effect on spending the CBO refers to.
Revenues for the first two months rose less than 5% in nominal terms before adjusting for the aforementioned calendar effects. The November reveneus actually only rose 3% before adjusting for the calendar effect. So particularly for November, tax revenues adjusted for calendar effects and inflation are in fact falling.
Corporate tax revenues are falling particularly fast, indicating a significant decline in corporate profits.