HCS/SS/SCS/SBs 1066 & 1088 - This act modifies provisions relating to property taxation. TAX BALLOT MEASURES This act provides that a political subdivision or election authority shall not advertise or describe any proposed property tax as not increasing taxes unless failing to adopt the measure would cause an actual increase in the tax rate and adopting the measure would cause the tax rate to stay the same or decrease. (Section 67.496) This provision is identical to a provision in SB 1517 (2026). This act requires an election authority to label tax ballot measures numerically or alphabetically in the order they are submitted. (Section 115.240) This provision is identical to a provision in HCS/HB 1790 (2026) and is substantially similar to a provision in SB 1517 (2026) and HCS/HB 2178 (2026). This act provides that any ballot measures proposing a new or increased real or personal property tax levy shall include certain information, as described in the act. (Section 115.706) ASSESSMENT OF SHORT-TERM RENTALS This act modifies the definition of "residential property" for the purposes of the taxation of real property by providing that such definition shall include single family homes that are owned by a sole proprietor, individual, partnership, or limited liability company and leased, in whole or in part, for a term of less than thirty consecutive days, provided that such provision may not apply to any such property in excess of fifteen such properties owned by the same individual or business. This act also prohibits an assessor from reclassifying real property without first conducting an in-person consultation with the owner of record of such property. An assessor shall be deemed to be in compliance with this provision if the assessor can document a good-faith effort to contact the owner of record, as described in the act. (Section 137.016) This provision is substantially similar to SB 1303 (2026), SB 699 (2025), SB 784 (2025), and SCS/HB 1086 (2025), and to a provision in HB 660 (2025). PROPERTY TAX ABATEMENTS This act provides that a political subdivision that adopts a tax abatement or similar economic incentive shall decrease any real property tax levy that is increased on property located in the political subdivision that does not receive an abatement. (Section 137.039) This provision is identical to a provision in SB 1517 (2026). CALCULATION AND REVISION OF PROPERTY TAX LEVIES Current law allows for a taxing jurisdiction to impose a separate levy for each class and subclass of property or a single rate for all classes, and requires a reconciliation of the revenues derived from multiple rates. Beginning January 1, 2027, this act requires counties and the City of St. Louis to determine assessed valuation and impose rates for each class and subclass of property separately, and repeals the reconciliation provision. (Section 137.073.2, 137.079, and section 137.115.14) PROPERTY ASSESSMENTS This act requires that if the voters in a political subdivision approve an increase to the tax rate ceiling prior to the expiration of a previously approved temporary levy increase, the new tax rate ceiling shall remain in effect only until such time as the temporary levy increase expires under the terms originally approved by a vote of the people, at which time the tax rate ceiling shall be decreased by the amount of the temporary levy increase. If, prior to the expiration of a temporary levy increase, voters are asked to approve an additional permanent levy increase, voters shall be submitted ballot language that clearly indicates that if the permanent levy increase is approved, the temporary levy shall be made permanent. (Section 137.073.5(3)) This provision is identical to a provision in HCS/HB 119 (2025), HB 660 (2025), HB 1497 (2025), HCS/HB 2058 (2024), HCS/HB 1517 (2024), HCS/HB 2140 (2024), CCS/HS/HCS/SS#2/SCS/SB 96 (2023), and HCS/SS#3/SCS/SB 131 (2023), and is substantially similar to SB 880 (2018) and SB 357 (2017). This act provides that, if the total assessed valuation in a political subdivision decreases in the tax year immediately following a tax year in which the voters approved an increase to the tax rate ceiling, such political subdivision may increase its levy such that the revenue received equals the amount that would have been received from the increased rate of levy had there been no decrease in the total assessed valuation. (Section 137.073.5(6)) This provision is identical to a provision in HCS/HB 119 (2025), HB 660 (2025), HB 1497 (2025), HCS/HB 2058 (2024), HCS/HB 1517 (2024), and HCS/HB 2140 (2024). Current law provides that the burden of proof to sustain a property valuation shall be on the assessor for any assessment of residential real property that is made by a computer, computer-assisted method, or a computer program. This act applies such provision to all non-agricultural real property. (Section 137.115.1(5)) This provision is identical to a provision in HCS/HB 2178 (2026) and HCS#2/HB 2780 (2026). Current law requires an assessor to conduct a physical inspection of any residential real property prior to increasing the assessed valuation of such property by more than 15%. This act applies such requirement to all utility, industrial, commercial, railroad and other non-agricultural real property. (Section 137.115.10) PROPERTY TAX CREDITS Current law allows counties to provide a property tax credit to certain seniors. This act requires counties to provide such credit and makes technical changes to the definitions of "eligible credit amount" and "eligible taxpayer". The act also requires the statement of tax due to include certain information about the proportional amount of the credit attributable to each taxing jurisdiction. Such statement shall also include a note indicating that it is the responsibility of the taxpayer to notify the county if the taxpayer is no longer eligible for the property tax credit, as described in the act. The act also provides that the credit shall apply to all property tax levies, including debt service levies. The act provides that a taxpayer shall not be required to reapply for the property tax annually. The tax credit shall continue to be applied to the taxpayer's homestead until the tax year in which the taxpayer relocates to another homestead or upon the death of the taxpayer. The Department of Health and Senior Services shall establish and maintain a secure electronic portal accessible to each county for the purpose of verifying whether an applicant is deceased. The act provides that any payment of real or personal property taxes transmitted through the U.S. Postal Service and postmarked no later than January 5 shall be deemed to be timely paid. The act authorizes township counties to accept partial or installment payments of real and personal property taxes in the same manner as other counties. The act authorizes a county to extend the deadline for property tax payments for a period not to exceed thirty days in the event the county experiences technical, administrative, or operational difficulties that materially delay the preparation, printing, or mailing of real or personal property tax statements. The act authorizes a county assessor to allow a grace period of ten days for the submission of certain forms that are transmitted through the U.S. Postal Service and that are postmarked on or before the due date but received after the due date due to postal delay. (Section 137.1050) Current law also allows counties to provide a property tax credit to all other taxpayers, with certain counties able to annually increase the real property tax liability by five percent or the percent increase in inflation, whichever is greater. This act limits such increase to the lesser of the two amounts. (Section 137.1055) SCHOOL DISTRICT PROPERTY TAX LEVIES Current law requires school districts to impose a property tax levy for operating purposes of not less than $2.75 in order to receive the full amount of state aid, with such rates subject to Hancock rollbacks. This act provides that the maximum rate of levy for any school district that imposed a levy of $2.75 in 2026 shall be $2.75 for the 2026-2027 school year, and shall be subject to Hancock rollbacks thereafter. (Section 163.021) JOSH NORBERG HA #1 - MOVES PROVISIONS RELATING TO PROPERTY TAX PAYMENTS FROM A SECTION AUTHORIZING A SENIOR PROPERTY TAX CREDIT TO APPROPRIATE SECTIONS OF LAW HA #2 - REQUIRES TAX LEVY INCREASES TO BE APPLIED TO EACH SUBCLASS OF PROPERTY EQUALLY, AND REQUIRES ANY INCREASE TO A VOLUNTARILY REDUCED TAX RATE TO BE MADE IN THE IMMEDIATELY FOLLOWING YEAR OF REASSESSMENT HA #3 - REQUIRES NEWLY ELECTED ASSESSORS TO COMPLETE AT LEAST FORTY HOURS OF TRAINING RATHER THAN THIRTY-TWO, AUTHORIZES ASSESSORS TO ELECTRONIC DOCUMENT STORAGE AND COMMUNICATION METHODS, AND AUTHORIZES COUNTIES TO ACCEPT PARTIAL PAYMENTS OF CERTAIN APPEALED RESIDENTIAL REAL PROPERTY TAXES