Local Government Code (RA 7160), Sec. 284

SECTION 284. [1]  Allotment of Internal Revenue Taxes. — Local government units shall have a share in the national internal revenue taxes based on the collection of the third fiscal year preceding the current fiscal year as follows:

(a) On the first year of the effectivity of this Code, thirty percent (30%);

(b) On the second year, thirty-five percent (35%); and

(c) On the third year and thereafter, forty percent (40%).

Provided, That in the event that the National Government incurs an unmanageable public sector deficit, the President of the Philippines is hereby authorized, upon the recommendation of Secretary of Finance, Secretary of Interior and Local Government, and Secretary of Budget and Management, and subject to consultation with the presiding officers of both Houses of Congress and the presidents of the "liga", to make the necessary adjustments in the internal revenue allotment of local government units but in no case shall the allotment be less than thirty percent (30%) of the collection of national internal revenue taxes of the third fiscal year preceding the current fiscal year: Provided, further, That in the first year of the effectivity of this Code, the local government units shall, in addition to the thirty percent (30%) internal revenue allotment which shall include the cost of devolved functions for essential public services, be entitled to receive the amount equivalent to the cost of devolved personal services.