The bill amends Chapter 44-30 of the General Laws regarding personal income tax by introducing a new section, 44-30-28, which establishes a one-time non-refundable tax credit for the actual costs of connecting a single-family or multi-family dwelling to a municipal sewer system. The credit is available to the owner of the real property and can be claimed only once. The amount of the credit is equal to the actual cost of the connection. The credit can be applied as either a personal or corporate income tax credit, depending on the owner's income tax filing status on the last day of their income tax filing period. However, the bill specifies that both a corporate and personal non-refundable income tax credit cannot be claimed for the installation costs at a single location. This act is designed to take effect upon passage.