The Government must present before the Congress of Deputies the General State Budget at least three months before the expiration of those of the previous year.
This extension has some exception: it does not affect credits approved for activities that ended in the year whose budget is extended.
The objective of budget stability is presented by the Government and is established every three years according to forecasts of economic growth.
The Congress of Deputies votes in the first place for its generic admission or the amendments to the totality, which, if successful, suppose their return to the Government.
Once this procedure has been completed, the capacity for alteration due to partial amendments is subject to the non-alteration of the budget balance.
Later, the Budget is sent to the Senate, which makes a second reading, but whose ability to alter them is very limited, with a final referral to Congress.
Subsequently, they are sanctioned by His Majesty the King and published in the Official State Gazette (BOE) with the rank of an ordinary law.
The budgets of the Autonomous Communities and the municipalities are organized independently, but they have to be subject to a common regulatory framework, for example in the setting of the public deficit.