Proposed Bill No. 99 aims to amend chapter 229 of the general statutes by establishing a refundable credit against the personal income tax for taxpayers who have paid motor vehicle property tax. This credit is specifically designed for individuals with an adjusted gross income of less than $100,000 for single filers and less than $200,000 for married couples filing jointly. Additionally, the bill seeks to limit the existing credit under section 12-704c to property tax paid solely on primary residences.

The proposed changes include the insertion of new legal language that creates the refundable credit and specifies the income thresholds for eligibility. Furthermore, the bill proposes to delete the broader applicability of the credit under section 12-704c, restricting it to only cover property tax on primary residences. This legislation is intended to provide financial relief to lower and middle-income taxpayers by offsetting the costs associated with motor vehicle property taxes.