Section 100Omnibus Election Code of the Philippines (Batas Pambansa Blg. 881), Sec. 100

Limitations upon expenses of candidates. - No candidate shall spend for his election campaign an aggregate amount exceeding one peso and fifty centavos for every voter currently registered in the constituency where he filed his candidacy: Provided, That the expenses herein referred to shall include those incurred or caused to be incurred by the candidate, whether in cash or in kind, including the use, rental or hire of land, water or aircraft, equipment, facilities, apparatus and paraphernalia used in the campaign: Provided, further, That where the land, water or aircraft, equipment, facilities, apparatus and paraphernalia used is owned by the candidate, his contributor or supporter, the Commission is hereby empowered to assess the amount commensurate with the expenses for the use thereof, based on the prevailing rates in the locality and shall be included in the total expenses incurred by the candidate.