Beyond the general property tax levy, Great Falls property owners pay assessments to a set of districts, each levied by its own resolution of the CityCommission after a public hearing, usually at the second meeting in August.
Assessed separately in September: the BusinessImprovementDistrict (Resolution 10583) and the TourismBusinessImprovementDistrict (10584).
Special Improvement Districts, SIDs, are a different instrument: a district formed to fund a specific improvement, with a payoff information request process run by the FinanceDepartment. The City took a special improvement district policy update as a separate work item.
City assessments: https://greatfallsmt.gov/537/City-Assessments SID policy update: https://greatfallsmt.gov/1119/Special-Improvement-District-Policy-Upda