The Federal Budget

For your edification, here is what once was the normal US Government budget cycle:

• First Monday in February: President submits his budget to Congress
• Late spring or early summer: Congress passes the budget after having modified the President’s budget
• Summer: The agencies work out the details of their internal funding.
• October 1: New fiscal year begins.

The Congressional Research Service has more detail for you here.

Graphic from front page of the 2023 Presidential Budget.