Table S–11. Receipts by Source—Summary (In billions of dollars) Estimate 2000 2001 2002 2003 2004 2005 Individual income taxes 879.5 951.6 972.4 995.2 1,025.6 1,066.1 1,116.8 Corporation income taxes 184.7 192.4 194.8 195.4 195.7 200.0 205.9 Social insurance and retirement receipts 611.8 650.0 682.1 712.2 741.7 771.3 815.3 (On-budget) (167.4) (173.3) (182.2) (189.9) (197.4) (204.7) (216.7) (Off-budget) (444.5) (476.8) (499.9) (522.2) (544.2) (566.7) (598.6) Excise taxes 70.4 68.4 76.7 79.8 80.8 81.8 83.4 Estate and gift taxes 27.8 30.5 32.3 34.9 36.3 38.7 37.0 Customs duties 18.3 20.9 20.9 22.6 24.3 25.7 27.9 Miscellaneous receipts 34.9 42.5 39.9 41.2 43.2 52.6 54.5 Total receipts 1,827.5 1,956.3 2,019.0 2,081.2 2,147.5 2,236.1 2,340.9 (On-budget) (1,383.0) (1,479.5) (1,519.1) (1,559.0) (1,603.2) (1,669.4) (1,742.3) (Off-budget) (444.5) (476.8) (499.9) (522.2) (544.2) (566.7) (598.6) Source 1999 Actual 2006 2007 2008 2009 2010 1,172.9 1,234.5 1,298.1 1,359.7 1,425.0 211.3 221.5 230.2 238.6 249.5 847.2 886.9 922.9 959.9 1,005.5 (224.2) (234.4) (242.5) (251.3) (262.6) (623.0) (652.5) (680.4) (708.6) (742.9) 84.4 85.9 87.8 89.4 91.6 37.6 39.4 42.2 44.7 47.3 29.8 31.9 34.1 36.3 38.3 57.0 58.7 60.7 56.7 59.4 2,440.3 2,558.8 2,676.0 2,785.2 2,916.7 (1,817.3) (1,906.3) (1,995.6) (2,076.7) (2,173.8) (623.0) (652.5) (680.4) (708.6) (742.9)