Fiscal Year so far:The federal government ran a budget deficit of $512 billion from October 2012 through June 2013 (the first nine months of fiscal year 2013), according to CBO’s estimates. That amount is almost $400 billion less than the shortfall recorded during the same period last year because revenues have risen significantly, while the government’s spending has declined.
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June:The federal government realized a surplus of $115 billion in June 2013, CBO estimates, in contrast with the $60 billion deficit incurred in the same month last year—a difference of $174 billion. But that comparison is distorted by quirks of the calendar: Because June 1, 2013, fell on a Saturday, certain payments that ordinarily would have been made in June this year were instead made earlier, reducing outlays in June by about $34 billion. A similar payment shift occurred from July to June in 2012, increasing outlays in June 2012 by $39 billion. Without those shifts in the timing of payments, the difference between the surplus for June 2013 and the deficit for June 2012 would have been $102 billion.
http://www.cbo.gov/publication/44400
