January 6, 2016 Graphic The federal deficit in 2015 was $439 billion, equal to 2.5 percent of gross domestic product. View Document157.33 KB Summary Related Publications Discretionary Spending in 2015: An InfographicJanuary 6, 2016 Mandatory Spending in 2015: An InfographicJanuary 6, 2016 Revenues in 2015: An InfographicJanuary 6, 2016