118.27. From the first fiscal year for which the urban agglomeration council’s decision under section 118.26 applies, an expenditure incurred by the central municipality in the exercise of an urban agglomeration power is financed by aliquot shares paid by the related municipalities of the urban agglomeration
The first paragraph does not prevent the central municipality from financing such an expenditure using revenue from a source other than a tax or compensation. The only mode of tariffing the central municipality may provide for for that purpose is an amount referred to in subparagraph 3 of the second paragraph of section 244.2 of the Act respecting municipal taxation (chapter F-2.1) or exigible in a manner similar to a subscription.