Authorizes the "Missouri Homestead Preservation Act"

HB 1544, the "Missouri Homestead Preservation Act," creates a property tax credit to help eligible older and disabled homeowners offset increases in their property taxes. It directly affects individuals aged 65+ (or disabled) with combined household income under $70,000 (adjusted annually), or married couples meeting specific age/income thresholds. The credit is calculated based on property tax increases exceeding a "homestead exemption limit" from two years prior, applied to the current tax bill. Homeowners must apply annually between April 1 and October 15, verifying age, income, and property tax payment history. The bill does not change how tax rates are set and excludes those who previously claimed other property tax credits.