On its website, the National Priorities Project breaks down federal expenditures by project type and revenue source, including proportions from individuals and other taxes paid to the Internal Revenue Service. The Tax Foundation publishes a report on its website that details the taxes collected from each state and paid to the federal government for the years 1981 through 2005, and the federal dollars received by the state for the same period.
For the 2015 federal budget, tax receipts from individual taxpayers totaled $1.48 trillion, and spending on all programs including mandatory programs totaled $3.8 trillion, states the National Priorities Project.
Of the total budget, $229 billion is allocated to serving the national debt, and $1.11 trillion is allocated to discretionary programs, or programs that are funded each year by congressional appropriations during the budget process. The military is the largest single discretionary program, making up over half of all discretionary spending. The remainder of the budget goes to mandatory programs funded outside of the budget process, and the largest of these are the entitlement programs Social Security and Medicare.
Tax dollars collected from each state and then appropriated to that state vary, according to the Tax Foundation's report covering the years 1981 to 2005. The foundation reports the number of dollars allocated to each state per tax dollar paid to the federal government, and charts the trends for each state over time. This data is not recent but identified trends in the late 20th century; the foundation is seeking funding for an update on the study.