SB 192 would have imposed a 10% tax on digital advertising revenue generated within Montana by companies with worldwide annual digital advertising revenue exceeding $25 million. It directly affects large digital advertisers (like major tech or social media platforms) operating in Montana, taxing only the portion of their revenue derived from ads served to Montana users. The tax would be calculated using an apportionment method based on Montana ad revenue relative to total U.S. ad revenue, with returns due annually by April 15. All collected revenue would have been deposited into Montana's general fund, as specified in the bill's provisions. The bill died in committee in May 2025 and was not enacted.
SB 157 would have allowed Montana taxpayers who itemize deductions on their federal tax returns to deduct up to 150% of their charitable contributions from their Montana state income tax. This provision, added to Montana's tax code, would have directly affected individual filers who itemize federal deductions and make charitable gifts. The bill proposed a specific mechanism where the state deduction amount would be calculated as 150% of the federal charitable deduction amount claimed. However, the bill was tabled in committee and later died in the legislative process in May 2025, so it did not become law.
SB 225 would create a refundable income tax credit for Montana renters with household income under $45,000. The credit equals the lesser of 4% of rent paid above household income or $500, phasing out completely for incomes of $45,000 or more. It directly affects low-to-moderate-income renters who pay rent in Montana, providing a refund even if they owe no income tax. The bill also amends tax code sections to include this credit in regular review cycles and prohibits claiming it alongside the existing elderly property tax credit.
SB 558 proposed replacing school property taxes with a statewide sales tax to fund public schools. It would create a new general sales tax, redirect all revenue to a dedicated school funding account, and repeal existing statewide property tax levies for schools. The bill would directly affect school districts and property taxpayers by shifting funding responsibility from local property taxes to a statewide sales tax, with certain exemptions (like agricultural sales) specified. However, the bill was tabled in committee and died in the legislative process in 2025, so it never became law.
SB 159 would create an "Educational Opportunity Fund" within Montana's coal severance tax trust. It increases the annual cap on educational tax credits from $2 million to $5 million starting in 2024, with automatic annual increases of 20% plus 50% of fund earnings. This bill directly affects taxpayers who donate to school districts for innovative programs or to scholarship organizations, allowing them to claim larger tax credits. It also removes the previous sunset provision, making the credit program permanent. The bill amends existing tax code sections to implement these changes to educational funding.
SB 169 would revise Montana's property tax law by removing the tax exemption for certain intangible personal property, such as stocks, bonds, patents, software, and licenses, unless they are directly used in business operations. This change would affect businesses and property owners holding these assets, requiring them to pay property taxes on previously exempt items. The bill clarifies that intangible property lacking physical existence (like goodwill) or representing value (like financial instruments) is no longer exempt, while property integral to business operations remains exempt. The law would take effect for tax years beginning after December 31, 2025, with implementation starting January 1, 2026.
SB 287 creates the Montana Growth and Opportunity Trust to manage volatile state revenues, including transferring funds to new specialized accounts like Montana Water Development, Better Local Bridges, and Early Childhood. It modifies property tax assistance by requiring homeowners to certify primary residences (with penalties for false claims) and directing county credits to eligible homeowners. The bill establishes rules for distributing trust interest income to state accounts, limits volatile revenue transfers during budget deficits, and revises pension fund transfers. These changes directly affect state finance agencies, local governments, and homeowners applying for property tax credits. The bill also creates a Montana Housing Trust and updates reporting requirements for state funds.
SB 267 (Montana Senate Bill 267) creates a 50% tax credit for Montana taxpayers who make charitable donations to certified public infrastructure projects, capped at $500,000 annually. The credit applies to donations for government-owned facilities like health clinics, senior centers, libraries, and museums that serve public educational, health, or civic needs. Taxpayers must receive certification from the state for the project, and any unused credit can be carried forward for up to three years. The bill died in the legislative process on May 23, 2025, after being tabled in committee and missing a deadline.
SB 203 would increase Montana's income tax thresholds, meaning more income would be taxed at the lower 4.7% rate instead of the higher 5.9% rate. Specifically, it raises the income level before the higher rate applies to $200,000 for joint filers, $150,000 for heads of household, and $100,000 for single filers. This change affects all Montana individual income taxpayers, potentially reducing their tax burden for income falling within the new, higher thresholds. The bill also includes retroactive application to tax years beginning after December 31, 2024.
SB 4 changes how Montana taxes the land beneath a home on qualifying agricultural property. It requires the first acre of land under a residence on eligible farm property to be valued at market rate but exempts it from tax up to the statewide average value for similar homesites. This primarily affects homeowners living on agricultural land who qualify for special farm tax treatment under Montana law. The exemption reduces their property tax burden specifically on that 1-acre parcel, rather than the entire farm.
