MO HB2178

Property tax ballot measures must be labeled only numerically or alphabetically, not descriptively, and must include specific information such as current and proposed tax rate ceilings, percentage changes, tax duration, and estimated impact on residential, commercial, agricultural properties, and motor vehicles per $100,000 of appraised valuation beginning January 1, 2027

Assessed property value increases exceeding 15% from the previous assessment (excluding new construction) must be spread evenly across successive reassessment cycles so no two-year period exceeds a 15% increase, with county assessors required to apply credits to tax bills accordingly

Single-family homes used as short-term rentals (less than 30 consecutive days) that are subject to sales tax retain their residential property classification rather than being reclassified as commercial transient housing

Motor vehicles with true value under $50,000 as of January 1, 2025 cannot be assessed higher than the previous year's assessment if properly assessed, and assessors must use trade-in values from state-selected publications like NADA or Kelley Blue Book

Property assessment appeals gain expanded protections: taxpayers submitting certified appraisal reports create a presumptive value; cases not heard by September 30 are dismissed with the previous assessment restored; attorney fee caps increase from $1,000 to $5,000 for residential appeals; and refunds must be issued within 30 days or accrue interest