Local Government Code of 1991
Section 320. Effectivity of Budgets. - The ordinance enacting the annual budget shall take effect at the beginning of the ensuing calendar year. An ordinance enacting a supplemental budget, however, shall take effect upon its approval or on the date fixed therein.
The responsibility for the execution of the annual and supplemental budgets and the accountability therefor shall be vested primarily in the local chief executive concerned.