MO SB961

Renames the program the "Missouri Historic, Rural Revitalization, and Regulatory Streamlining Act" and increases the tax credit from 25% to 35% for rehabilitation of certified historic structures located in qualifying counties (areas outside Kansas City and St. Louis City) for costs incurred on or after July 1, 2024

Allows up to 10% of rehabilitation costs to be incurred for investigation assessments and building stabilization before the tax credit application is submitted

Requires state historic rehabilitation standards to not be more restrictive than the federal Secretary of the Interior's Standards for Rehabilitation

Creates streamlined review timelines requiring the state historic preservation office to complete determinations within 60 days, with applications automatically forwarded to the National Park Service without state comments if the deadline is missed

Establishes special provisions for large historic structures over one million gross square feet where tax credits exceeding $60 million can be spread over six years, with one-sixth allocated annually