How the federal budget process works

Step one: the president’s budget

Early in the calendar year the administration submits a budget request for the fiscal year beginning the following 1 October. It is a statement of priorities and a detailed set of proposals. It is not binding on anyone, and Congress is free to disregard it entirely.

Coverage that treats the request as “the budget” has described a wish list. Nothing has been spent.

Step two: the budget resolution

Congress then writes its own framework. A budget resolution is a concurrent resolution: agreed by both chambers, not presented to the president, and not law. Its force is internal — it sets aggregate totals and divides them among committees, and those allocations constrain what later bills can do without triggering procedural objections.

It can also carry reconciliation instructions, which is what makes it consequential in years when one party controls both chambers narrowly. That is a power tool, not a civic ritual: it is how a majority changes taxes and spending with 51 Senate votes. See budget reconciliation.

A year can pass without a resolution. Appropriations still happen. Reconciliation does not.

Step three: appropriations

The funding itself comes from twelve regular appropriations acts, each written by a subcommittee with its own jurisdiction. These are ordinary laws: they pass both chambers and are signed. They are the only step in this sequence that carries the force of law for discretionary spending.

If they are not enacted by the start of the fiscal year, the affected agencies have no budget authority. A continuing resolution extends the previous year’s funding to avoid that, which is why one is passed most years. A CR postpones the fight; it does not settle the levels. See what a continuing resolution is.

The part this process does not touch

Discretionary spending — everything funded through those twelve bills — is the minority of federal spending. The majority is mandatory: Social Security, Medicare, Medicaid, and interest on the debt, all flowing from permanent law under eligibility rules rather than annual votes.

This is the single most useful thing to know about the annual budget fight. It is conducted over the smaller share of the money, and it does not reach the programs that drive long-run spending growth. Interest is not a program anyone votes to expand. It is the bill for every prior deficit that was not closed with a surplus. The chart on this page is that bill.

Changing mandatory spending means changing the underlying statutes — usually through reconciliation, not through an appropriations rider. Leaving those statutes as they are is also a choice. “Autopilot” is the mechanism Congress wrote, not a force of nature.

The CBO baseline is the yardstick later bills are scored against. It is current law, not a forecast of restraint. Provisions scheduled to expire are assumed to expire, even when Congress has extended them every time before.

Who decides, and who pays

A chair who never marks up a bill has decided. A majority that passes a CR has decided to lock last year’s discretionary levels and leave the mandatory path alone. Future taxpayers pay the interest. If the gap is later financed by creating money, households on fixed incomes pay through the price level. See debt vs. deficit.

How to read the coverage

• “The White House budget” — a request. Ask what Congress did with it.
• “Congress passed a budget” — often a budget resolution, not a law. Ask whether it carried reconciliation instructions.
• “Congress cut spending” — usually discretionary, and often relative to a projected increase, not to last year’s level.
• “The process failed” — the twelve bills are late most years. The mandatory majority did not wait for them.