*Tables list appropriation bills, hearings, and reports by fiscal year. Beginning with FY2017, tables link to Congress.gov or the Congressional Research Service.
For more detail on process, read:
The Congressional Appropriations Process: An Introduction (CRS) (PDF)
Overview of the Authorization-Appropriations Process (CRS) (PDF)
The president submits a budget to Congress by the first Monday in February every year. The budget contains estimates of federal government income and spending for the upcoming fiscal year and also recommends funding levels for the federal government. Congress then must pass appropriations bills based on the president's recommendations and Congressional priorities. If Congress does not pass all appropriations measures by the start of the fiscal year (October 1), it has to enact a continuing resolution to keep the government running.
Budget of the United States Government (GPO - govInfo)