Estimated receipts for fiscal year 2007 were $2.4 trillion.
* $1.1 trillion - Individual income tax * $884.1 billion - Social Security and other payroll taxes * $260.6 billion - Corporate income tax * $74.6 billion - Excise taxes * $28.1 billion - Customs duties * $23.7 billion - Estate and gift taxes * $48.4 billion - Other
The IRS estimated that there were about $345 billion in uncollected taxes.
TOTAL SPENDING
The President's budget for 2007 totals $2.8 trillion. Percentages in parentheses indicate percentage change compared to 2006. This budget request is broken down by the following expenditures:
* $699.0 billion ( 4.0%) - Defense * $586.1 billion ( 7.0%) - Social Security * $394.5 billion ( 12.4%) - Medicare * $367.0 billion ( 2.0%) - Unemployment and welfare * $276.4 billion ( 2.9%) - Medicaid and other health related * $243.7 billion ( 13.4%) - Interest on debt * $89.9 billion ( 1.3%) - Education and training * $76.9 billion ( 8.1%) - Transportation * $72.6 billion ( 5.8%) - Veterans' benefits * $43.5 billion ( 9.2%) - Administration of justice * $33.1 billion ( 5.7%) - Natural resources and environment * $32.5 billion ( 15.4%) - Foreign affairs * $27.0 billion ( 3.7%) - Agriculture * $26.8 billion ( 28.7%) - Community and regional development * $25.0 billion ( 4.0%) - Science and technology * $23.5 billion ( 0.0%) - Energy * $20.1 billion ( 11.4%) - General government