SB 189 lowers property tax rates for specific categories in Montana. It reduces the tax rate for Class Three agricultural land from 2.16% to 1.85% of its agricultural value, and cuts the standard residential tax rate from 1.35% to 0.76% of market value (with a reduced rate for homes over $1.5 million). Commercial property tax rates also decrease, from a previous 1.4x multiplier to 1.35% of market value. The bill applies retroactively to 2025 tax years, meaning affected property owners may receive refunds for past taxes paid under the higher rates. It directly impacts Montana landowners with agricultural properties, residential homes (especially higher-value ones), and commercial properties.
SB 434 provides a property tax rebate of up to $400 for Montana homeowners who lived in their principal residence for at least 7 months during tax year 2024. It directly affects individual homeowners (not businesses or multiple properties) who paid Montana property taxes on their primary residence, with the rebate amount capped at $400 or the actual taxes paid, whichever is lower. To claim the rebate, homeowners must submit an application electronically (August 15-October 1, 2025) or by mail (postmarked by October 1), including proof of residency and property ownership. The rebate is not subject to Montana income tax, and false claims may result in penalties of 300% of the rebate plus 12% annual interest.
SB 324 revises vehicle registration fees for high-end vehicles, adding a 1% fee based on the vehicle's manufacturer's suggested retail price (MSRP) for the first year of registration after January 1, 2026, for cars over $150,000 and motorhomes over $300,000. It directly affects owners of these high-value vehicles, replacing a flat annual add-on fee with the percentage-based assessment. Revenue from these fees will fund two specific programs: grants for bridge projects through the Department of Transportation and services for crime victims via the Board of Crime Control. The bill also updates related sections of Montana law governing registration fees and special revenue accounts.
SB 546 would have created an income-based tax credit for Montana taxpayers with low-to-moderate income, reducing their state tax liability. The credit would have been calculated as 4.7% of taxable income up to specific thresholds ($2,000 for joint filers, $1,500 for heads of household, and $1,000 for other filers), phasing out by 0.094% for each additional $1,000-$2,000 of income depending on filing status. It would not have applied to income above phaseout limits, and the credit could not exceed the taxpayer’s total tax liability. The bill died in committee on May 23, 2025, and was never enacted.
SB 405 proposed transferring $50 million from Montana's general fund to the Housing Montana Fund within 15 days of enactment, directly supporting state housing programs and affordable housing initiatives. It required the Department of Commerce to update administrative rules related to housing by the start of the 70th legislative session. The bill would have taken effect July 1, 2025, but died in committee on May 23, 2025, after being tabled in April 2025. This was a substantive funding bill, not a procedural measure, with no further legislative action taken.
HB 848 aimed to provide dedicated funding for regional rail authorities in the state. The bill proposed creating a "Big Sky Rail Account" within the state special revenue fund, which would receive a portion of rental car sales and use tax proceeds. The Department of Transportation would then annually distribute these funds to eligible regional rail authorities. These authorities could use the money for administrative costs, matching federal grants, fostering partnerships, and planning, developing, and operating rail projects and services, such as enhancing safety, improving stations, and exploring new train routes.
HB 528 revises Montana property tax rates for agricultural, residential, and commercial property. It lowers the tax rate for class three agricultural land from 2.16% to 1.7% of its productive capacity value, and reduces the tax rate for class four residential property from 1.35% to 0.76% of market value. Commercial property rates remain at 1.35% of market value but include specific adjustments for properties over $1.5 million in value. The bill applies retroactively to tax years beginning after December 31, 2024, and the 2025 reappraisal cycle.
HB 836 proposed creating a property tax deferral loan program for eligible senior citizens and active-duty military personnel in Montana. This program would allow qualifying homeowners to defer paying the portion of their property taxes that exceeds their 2022 property tax amount. The state's Board of Housing would provide these loans, which would accrue simple interest and become a lien on the primary residence. The loan, including interest, would generally be repaid when the property is sold or transferred, or upon the death of the homeowner, though a surviving spouse might be able to assume the loan.
HB 154 would have created a new tax credit for Montana renters and homeowners with household incomes under $150,000. The credit would equal 75% of either property taxes paid (for homeowners) or 15% of rent paid (for renters), minus an income-based percentage (ranging from 1% to 9.5%). To qualify, residents needed to have lived in Montana for at least 9 months and occupied a home or rental for 6 months during the tax year. The bill died in committee in May 2025 without becoming law.
HB 220 would establish a refundable child tax credit for Montana resident taxpayers with children under age 5. It provides a $1,200 credit per qualifying child, phasing out for taxpayers with federal adjusted gross income over $56,000 (with a $50,000 phaseout threshold). The credit is refundable, meaning eligible families could receive it as a payment even if they owed no state income tax. The bill also adds the child tax credit to Montana’s required periodic review schedule for tax credits. The bill died in committee on May 22, 2025, and did not become law.