The below links will help you track how the United States is spending money.
Provides access to spending by all agencies, including specific grants and loans provided by the federal government. Data goes back to about 2010 in most cases.
Financial Report of the United States
Similar to company's annual report, the Financial Report of the United States provides an overall view of the government's financial health, including future projections. From 1998-
Provides receipts by source for the last five years and last 12 months by agency.
Combined Statement of Receipts, Outlays, and Balances of the United States Government
The official publication of receipts and outlays for the fiscal year, from 2001-. Previously called the United States Government Annual Report.
Government Accountability Office Reports
Previously known as the General Accounting Office, the GAO is the "investigative arm of Congress," and studies how federal money is spent.
Track public spending from around the world on various projects.