Source: The White House Office of Management and Budget
Latest Data: 2021
Frequency: Annual

This line item comes from the White House Office of Management and Budget, which publishes "The President's Budget" annually, a document which includes historical tables. "On-Budget" is defined in the Budget Concepts and Budget Process document as "all budgetary transactions other than those designated by statute as off-budget." 

Source:  The White House Office of Budget and Management Historical Tables, Table 1.1 - SUMMARY OF RECEIPTS, OUTLAYS, AND SURPLUSES OR DEFICITS ( - ):  1789 - 2028.