Revise property taxes and special assessments
SB 539 revises Montana law governing property taxation and local special assessments. The bill creates a new statutory framework for determining when a local government charge on property is a tax versus a special assessment or fee. Under that framework, an assessment is presumed to be a tax unless it meets specified criteria, including that the charge compensates the government for services to the specific property, the benefit to the property is commensurate with the amount charged, and the benefit will be realized within a reasonable time. It also states that assessments for the general public good, or without regard to special benefit to the assessed property, are taxes. Certain petition-created special districts are presumed to impose special assessments unless a property owner proves otherwise.
The bill also amends county improvement district law to exclude certain parcels from the definition of “property benefited” for assessment purposes. Specifically, class three property with no residential structures, not contiguous to the district, and with legal access to a public road outside the district would not be treated as benefited property for those assessments. In addition, SB 539 changes the appeal process for Department of Revenue final decisions involving property tax exemptions by directing those appeals to the Montana Tax Appeal Board. The bill includes effective dates and delayed applicability provisions, with some sections applying only to assessments imposed after December 31, 2026.
In practical terms, the bill would affect local governments, special districts, rural improvement districts, property owners, and taxpayers challenging property tax exemptions. It would narrow or clarify when local property-related charges can be imposed as assessments rather than taxes, potentially limiting some local revenue mechanisms and changing how assessment disputes are litigated. It also would give taxpayers a direct administrative appeal route to the Tax Appeal Board for exemption decisions, rather than leaving those matters solely within the Department of Revenue process.
The general sentiment reflected in the bill’s legislative history appears mixed to favorable in the Senate, but ultimately unsuccessful in the House. The bill passed the Senate Taxation Committee and cleared both second and third reading in the Senate, indicating meaningful support among senators. However, it was later tabled in the House Taxation Committee and died in standing committee, suggesting the House committee did not support advancing it.
The main points of contention likely centered on the bill’s impact on local government authority to fund improvements and special districts through assessments, and on the legal standard for distinguishing taxes from assessments. Supporters likely viewed the bill as a taxpayer-protection and clarity measure, while opponents may have been concerned it would restrict local financing tools, complicate existing assessment practices, or create litigation over whether a charge qualifies as a tax or fee. The exclusion of certain nonresidential, noncontiguous class three property from benefited-property calculations may also have been controversial for local governments and district proponents.
SB 539 would amend sections 7-12-2108 and 15-2-302, MCA, and add a new codified section in Title 7, chapter 6, part 40. It would change how local government property-related charges are classified, create a presumption that most assessments are taxes unless they satisfy statutory special-benefit criteria, exclude certain parcels from rural improvement district benefit calculations, and route Department of Revenue final decisions on property tax exemptions directly to the Montana Tax Appeal Board. The bill would apply prospectively to local assessments imposed after December 31, 2026, with the appeal provision applying to exemption decisions made on or after the effective date.
The bill appears to have had notable support in the Senate, where it passed committee and both floor readings, but it encountered resistance in the House, where it was tabled in the House Taxation Committee and died. That pattern suggests the bill was viewed favorably by some lawmakers as a property-tax reform and taxpayer-rights measure, but not enough to overcome concerns in the House about its policy effects or implementation. No committee transcript was provided, so the record of debate is limited to the votes and procedural outcome.
The likely core dispute was whether SB 539 would appropriately clarify the line between taxes, fees, and special assessments, or instead unduly constrain local governments’ ability to finance public improvements and special districts. Local governments and district supporters would likely object to the presumption that assessments are taxes unless strict special-benefit criteria are met, while property owners and taxpayer advocates would likely support the added protections and appeal rights. Another likely point of contention was the exclusion of certain class three parcels from being treated as benefited property in rural improvement district assessments, which could reduce the assessment base and shift costs to other properties.