Landautomate

The Montana landlord calendar

Landautomate keeps an operating calendar for independent landlords: what needs doing on a rental, when it is due, and why. This page is the Montana content from our reviewed rule base. Every item below carries its sources and the date we last checked them.

What Landautomate does with this page

This guide is the reading version of our Montana rule base. In the app, the same rules become dated tasks on each of your Montana properties, timed to your purchase date, lease dates, property age, and climate, with an email before each one is due. The free preview shows a sample of that schedule for Montana in under a minute, no account needed.

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Montana compliance obligations

Montana landlords commonly track 5 state and local compliance obligations, each listed below with its schedule, its sources, and the date we last verified it. Among them: file the Montana annual report for the ownership entity by April 15, pay first-half Montana property tax installment, and pay second-half Montana property tax installment.

File the Montana annual report for the ownership entity by April 15

If an LLC or corporation holds your rental, file its Montana annual report between January 1 and April 15, because a report filed after April 15 costs $35, and an entity that still has not filed by December 1 (November 1 for an out-of-state entity registered in Montana) can be administratively dissolved or lose its Montana registration.

Each year around April 15 · Last verified September 2026 · source 1 · source 2 · source 3

Pay first-half Montana property tax installment

The first half of Montana property tax is due by 5 p.m. on November 30, after which interest and a 2% penalty apply.

Each year around November 30 · Last verified September 2026 · source 1 · source 2 · source 3

Pay second-half Montana property tax installment

The second half of Montana property tax is due by 5 p.m. on May 31, after which interest and a 2% penalty apply.

Each year around May 31 · Last verified September 2026 · source 1 · source 2 · source 3

Return security deposit with itemized statement within 30 days of move-out

Montana landlords must deliver a written list of any rent due and damage and cleaning charges, together with the remaining deposit balance, within 30 days after the tenancy ends or the landlord accepts the tenant's surrender of the unit, whichever comes first (or return the full deposit within 10 days when there is no damage, cleaning, unpaid rent, or unpaid utilities), and a landlord who skips the list forfeits the right to keep any of the deposit for damage or cleaning.

On a recurring schedule · Last verified September 2026 · source 1 · source 2 · source 3

Verify smoke and carbon monoxide detectors before each new tenancy

Montana landlords must install an approved smoke detector in every rental unit and a carbon monoxide detector outside each sleeping area in any unit with fuel-fired appliances or an attached garage, then verify every detector works at the start of each rental agreement, and an annual check catches missing or disabled detectors before the next turnover.

On a recurring schedule · Last verified September 2026 · source 1 · source 2 · source 3

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Seasonal maintenance for Montana

Landlords in Montana plan upkeep around a cold climate: this guide lists 7 seasonal maintenance items for Montana in calendar order, each with its timing and the date we last verified it. Among them: smoke and CO detector seasonal test, spring thaw inspection: roof and foundation, and create defensible space and clear debris before summer fire season.

Smoke and CO detector seasonal test

An annual full test of smoke and CO detectors (beyond battery swaps) confirms every alarm actually sounds.

Around March · Verified before August 2026

Spring thaw inspection: roof and foundation

Freeze-thaw cycles crack roofs and foundations; a spring inspection catches winter damage early.

Around April · Verified before August 2026

Create defensible space and clear debris before summer fire season

Montana's fire season typically runs from late June into October at lower elevations, so clearing dead vegetation and debris around the home and removing combustible materials from decks and porches in May creates defensible space before fire danger climbs.

Each year around May 1 · Last verified September 2026 · source 1 · source 2 · source 3

Winterize sprinklers and exterior plumbing by mid-September

Much of Montana sees its first freezing nights by mid to late September, and water left in sprinkler lines, hoses, or hose bibs expands as it freezes and cracks them, so blowing out and draining them by mid-September (by late August in Butte and the high mountain valleys) prevents burst lines and water damage.

Each year around September 15 · Last verified September 2026 · source 1 · source 2 · source 3

Furnace inspection before heating season

A pre-season furnace inspection prevents mid-winter heating failures and carbon monoxide risk.

Around September · Verified before August 2026

Gutter cleaning after leaf fall

Clearing gutters after leaf drop prevents ice dams and roofline water damage in winter.

Around November · Verified before August 2026

Check attic insulation and roof edges for ice-dam risk in early winter

Across Montana's valleys and plains, snow cover builds through December and peaks in January, so checking attic insulation, attic air sealing, and the eaves early in winter lets you fix the attic heat loss that turns roof snow into ice dams and forces meltwater under shingles and into ceilings.

Each year around December 1 · Last verified September 2026 · source 1 · source 2 · source 3

Baseline upkeep for every rental

Every rental needs the same baseline care regardless of state: this guide tracks 16 recurring upkeep items, each with its schedule and the date we last verified it. Among them: CPA tax document preparation, gutter inspection, and HVAC filter replacement.

CPA tax document preparation

Organized records make tax filing accurate and deductions defensible.

Within 365 days of the triggering event · Verified before August 2026

Gutter inspection

Clear gutters prevent water intrusion, foundation, and roof damage.

Within 90 days of the triggering event · Verified before August 2026

HVAC filter replacement

Clean filters protect HVAC equipment and keep energy costs down.

Within 90 days of the triggering event · Verified before August 2026

Insurance renewal review

Confirms coverage limits and premiums still match the property risk.

Within 365 days of the triggering event · Verified before August 2026

LLC annual filing prep

Keeps the ownership entity in good standing with state filings.

Within 365 days of the triggering event · Verified before August 2026

Lease renewal planning

Planning renewals ahead of time reduces vacancy and turnover costs.

Within 365 days of the triggering event · Verified before August 2026

Maintenance review

Keeps small maintenance issues from turning into expensive repairs.

Within 30 days of the triggering event · Verified before August 2026

Owner distribution check

Verifies owner cash distributions reconcile with rent and expenses.

Within 30 days of the triggering event · Verified before August 2026

Pest inspection

Early pest detection prevents structural damage and habitability complaints.

Within 90 days of the triggering event · Verified before August 2026

Property tax review

Reviewing assessments can surface appeal opportunities and budget changes.

Within 365 days of the triggering event · Verified before August 2026

Rent collection review

Confirms rent was received on time and surfaces collection issues early.

Within 30 days of the triggering event · Verified before August 2026

Rent increase review

Keeps rent aligned with market rates and local rent regulations.

Within 365 days of the triggering event · Verified before August 2026

Smoke detector battery check

Working smoke and CO detectors are a life-safety and legal requirement.

Within 90 days of the triggering event · Verified before August 2026

Utilities minimal-service verification

Confirms vacant-property utilities stay at minimal service so pipes, alarms, and sump pumps keep working.

Within 14 days of the triggering event · Verified before August 2026

Utility reconciliation

Catches billing errors and unexpected usage spikes on property utilities.

Within 30 days of the triggering event · Verified before August 2026

Vacant property security check

Regular walkthroughs of a vacant property deter break-ins, squatting, and unnoticed damage.

Within 30 days of the triggering event · Verified before August 2026

Common questions

What are the compliance requirements for Montana landlords?

Our reviewed rule base currently lists 5 state and local compliance obligations that Montana landlords commonly track. Among them: file the Montana annual report for the ownership entity by April 15, pay first-half Montana property tax installment, and pay second-half Montana property tax installment. Each obligation shows its schedule, the sources it was checked against, and the date we last verified it. This guide is general information for planning reminders, not legal advice.

What seasonal maintenance should Montana landlords plan for?

The Montana guide lists 7 seasonal maintenance items timed to a cold climate, in calendar order. Among them: smoke and CO detector seasonal test, spring thaw inspection: roof and foundation, and create defensible space and clear debris before summer fire season. Landautomate turns each item into a dated reminder on your property calendar so the work is planned before the season arrives.

What routine upkeep should every Montana rental get?

Alongside state specific work, the Montana guide tracks 16 baseline upkeep items that apply to nearly every rental. Among them: CPA tax document preparation, gutter inspection, and HVAC filter replacement. These recur on a regular schedule, and Landautomate schedules each one automatically for every property you add.

How does Landautomate verify Montana landlord rules?

Every rule in the Montana guide goes through human review before it is published, and each rule shows the date we last verified it. Each compliance obligation links the primary sources it was checked against. Laws and deadlines change, so if you believe something here is outdated or incorrect, contact us at support@landautomate.com and we will review it promptly.

See this calendar built for your own property

The free preview takes your state and property facts and shows the schedule Landautomate would run for you, no account needed. Every new account starts with a 30-day free Pro trial, no card required.

Try the free preview Start free