Authorizes the "Missouri Homestead Preservation Act"

HB 2981 creates a new property tax credit for eligible Missouri homeowners, primarily seniors (65+), disabled individuals, or qualifying married couples, whose property tax bills increase by more than a calculated threshold. It directly affects homeowners with combined income under $70,000 (adjusted annually) who own a homestead without significant non-disability improvements (exceeding 5% of assessed value). The credit offsets tax increases above the "homestead exemption limit" (based on prior-year tax liability changes), calculated separately from existing tax rates. Homeowners must apply annually between April 1 and October 15, providing proof of age, income, and tax payment history, with applications processed by the Department of Revenue. The credit applies only to subclass (1) real property and excludes those already claiming other property tax relief.