Montana Property Tax Mill Levy Cap (MT)
Tracked preemption from the Montana overlay bundle.
Overview
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Effective
1986-01-01
Sunset
—
Authority
state
Scope
state:MT
Other Montana preemptions
Montana SB 323 — Duplex By-Right in Cities >=5,000Montana SB 528 — ADU Statewide By-RightMontana SB 382 — Montana Land Use Planning ActMontana HB 819 — Minimum Lot Size Cap in Cities >=5,000Montana HB 337 — Parking Minimum Cap for Multifamily Near TransitMontana SB 245 — Density Restriction Preemption in Residential Zones
Trigger predicate
When this evaluates true for a parcel, the law's preempted fields take precedence over base zoning.
always true
Preempted fields
1 field on the base district schema is rewritten when the trigger fires.
| Field | Op | Value | Note |
|---|---|---|---|
local_impact_fees.property_tax_mill_levy | cap_at | state-prescribed mill levy ceiling | State limits growth of local mill levies to one-half the average rate of inflation over the prior three years, plus newly taxable property. |
Citation
Authority source
MCA §15-10-420 — Property Tax Limitation
§ MCA §15-10-420
Research notes
State-level cap on local property tax mill levy growth. Does not directly alter zoning entitlements but constrains local governments' ability to fund zoning-related services (infrastructure, planning staff) through property tax, indirectly affecting entitlement capacity.