Montana Homestead Exemption: Rules & Savings

Montana homeowner relief guide • reviewed August 24, 2026

Montana Homestead Exemption: Rules & Savings

Montana now has a genuine property-tax Homestead Reduced Rate for qualifying principal residences. Beginning with tax year 2026, an enrolled primary residence can receive substantially lower Class 4 tax rates than a second home, short-term rental, vacation cabin or other nonqualifying residential property.

But there is an important Montana-specific complication: a Homestead Reduced Rate is not the same thing as a Montana Homestead Declaration. The reduced rate lowers the taxable value used to calculate property taxes. A recorded homestead declaration instead protects qualifying home equity against certain creditor claims.

If your goal is to lower property taxes: verify that the home is your principal residence for at least seven months per year → confirm your property taxes are current → find the property’s 17-digit geocode → verify existing enrollment → enroll through the Montana Department of Revenue if necessary → then check whether PTAP, disabled veteran, disabled first responder, elderly homeowner or land-value relief can provide additional help.
7 months Residency test The home generally must be your principal residence for at least seven months.
0.76% Lowest 2026 tier Applied to the first $378,000 of qualifying homestead market value.
1.90% Standard contrast 2026 flat rate for many non-principal residential properties.
Mar 1 2027 deadline Current 2027 Homestead Reduced Rate enrollment closes March 1, 2027.
$425,828 2026 creditor limit Separate 2026 Montana homestead-declaration equity limit.
$1,150 Senior credit Maximum Elderly Homeowner/Renter refundable income-tax credit.
Current-status checkpoint

What Is Open Right Now?

Montana’s property-tax system changed materially in 2025 and 2026, so an article written before those reforms can give a homeowner the wrong filing instructions.

2026 Homestead enrollment: closed The original March 1, 2026 filing date was extended to March 20, 2026 after technical problems with the application portal.
2027 enrollment: open now Montana DOR opened 2027 Homestead Reduced Rate applications on May 4, 2026.
2027 deadline: March 1, 2027 New owners, newly built homes and owners who are not already enrolled should not wait for the next tax bill before checking eligibility.
Freshness rule for this guide: the tax-rate examples below use Montana’s published 2026 rate tiers. The 2027 application period is already open, but do not assume future dollar thresholds will be identical unless DOR publishes them for that tax year.
The distinction that prevents the biggest mistakes

Montana Has Two Different “Homestead” Systems

PROPERTY TAX Homestead Reduced Tax Rate

This is the newer Montana property-tax benefit created by the 2025 Legislature and effective beginning with tax year 2026.

  • Administered by the Montana Department of Revenue.
  • Based primarily on principal-residence use.
  • Requires at least seven months of qualifying residence.
  • Uses reduced Class 4 tax-rate tiers.
  • Can materially lower taxable value and the final general property-tax bill.
Go to property-tax rules
CREDITOR PROTECTION Homestead Declaration

This is a separate Title 70 protection involving home equity and execution or forced sale by certain creditors.

  • Recorded with the county clerk and recorder.
  • Does not create the property-tax reduced rate.
  • Protects qualifying equity up to the statutory limit.
  • 2026 limit is approximately $425,828.
  • Does not defeat every mortgage, lien or secured claim.
Go to creditor-protection rules
Do not record a Homestead Declaration and assume your property taxes will decrease. Montana DOR expressly distinguishes the creditor declaration from the Homestead Reduced Rate.
Montana Homestead Action Center Choose the question that matches your situation.
Pick your homeowner situation

What Are You Trying to Accomplish?

2026 property-tax reform

What Is the Montana Homestead Reduced Rate?

The Homestead Reduced Rate is a reduced Class 4 residential property-tax rate available to qualifying principal residences. It is not a fixed-dollar deduction from market value and it is not a cash rebate.

Montana first determines the property’s market value. The applicable statutory tax rate converts that market value into taxable value. Local and statewide mill levies are then applied to taxable value to calculate general property taxes.

Montana general property-tax formula Market Value × Applicable Tax Rate = Taxable Value Taxable Value × Mills ÷ 1,000 = General Property Tax

Special assessments and fees can appear separately and are not necessarily reduced just because a property’s Class 4 taxable value is lower.

Important terminology: when Montana says the residential tax rate is 0.76%, 0.90%, 1.10% or 1.90%, that is not necessarily the percentage of market value you will pay as your final property-tax bill. The rate first creates taxable value; mills are applied afterward.
Core 2026 qualification test

Who Qualifies for Montana’s Homestead Reduced Tax Rate?

Principal residence The property must be the residence you use as your principal home.
At least seven months You generally must live in the home as your principal residence for at least seven months during the applicable year.
Only one homestead reduced rate The application requires you to attest that this is the only residence for which you claim the Homestead Reduced Rate.
Property taxes must be current Past-due property taxes can disqualify the property until the payment condition is satisfied.
Eligible ownership Individuals, purchasers under qualifying contracts for deed and certain grantor revocable-trust arrangements can qualify.
Entity ownership can block homestead treatment A residence owned by an LLC, corporation, partnership or nonrevocable trust generally does not qualify for the Homestead Reduced Rate.
The seven months do not necessarily need to be uninterrupted in ordinary circumstances. DOR also recognizes situations involving temporary absences when the property remains the homeowner’s principal residence.
LLC trap: a house can be your real-world home but still fail the property-tax Homestead Reduced Rate ownership test if legal title is held by an ineligible entity. Review title before assuming occupancy alone controls.
2026 rate ladder

Montana Homestead Reduced Rate Tiers for 2026

Montana’s 2026 homestead rate is incremental. Crossing into a higher bracket does not cause the entire property’s market value to be taxed at the higher percentage. Each portion remains in its applicable tier.

First $378,000 0.76%

Lowest 2026 homestead tier.

$378,001 – $756,000 0.90%

Only value inside this band receives the 0.90% rate.

$756,001 – $1,511,999 1.10%

Lower brackets continue to retain their lower rates.

$1,512,000+ 1.90%

Only value at or above four times the 2026 median threshold moves into the top homestead band.

Second homes, short-term rentals and many other non-principal residences use a 1.90% flat residential rate in 2026. That difference is why correct Homestead Reduced Rate enrollment can have a much larger effect than an old-style fixed exemption.
Visual rate explainer

How Montana’s Incremental Homestead Rate Works

Montana 2026 Homestead Reduced Rate tier diagram The first 378 thousand dollars of market value is taxed at a 0.76 percent property classification rate, the next 378 thousand dollars at 0.90 percent, the next portion to just below 1.512 million dollars at 1.10 percent, and value at or above 1.512 million dollars at 1.90 percent. 2026 Montana homestead tax-rate ladder Higher tiers apply only to the value inside each band First $378,000 0.76% Next $378,000 0.90% To $1.512M 1.10% Over $1.512M 1.90% $378k $756k $1.512M Higher value Example: a $500,000 home is NOT taxed entirely at 0.90%. First $378,000 × 0.76% + remaining $122,000 × 0.90%
These percentages create taxable value. Your actual general property tax then depends on the mills imposed by the taxing jurisdictions that apply to your property.
Worked homeowner examples

How Much Could the Montana Homestead Reduced Rate Save?

Exact savings depend on your property’s market value, applicable classification, local mill levies and special assessments. The examples below use a hypothetical 500-mill combined levy only to show how the classification-rate difference can affect a bill.

$300,000 principal residence $300,000 × 0.76% = $2,280 taxable value

At 500 mills: $1,140 of illustrated general tax.

At a hypothetical 1.90% nonqualifying residential rate: taxable value would be $5,700 and tax at the same 500 mills would be $2,850.

Illustrative difference: $1,710
$500,000 principal residence $378,000 × 0.76% + $122,000 × 0.90%

Taxable value: $3,970.80

At 500 mills: $1,985.40

Illustrative difference vs. 1.90% flat rate: $2,764.60
$800,000 principal residence $378k × .76% + $378k × .90% + $44k × 1.10%

Taxable value: $6,758.80

At 500 mills: $3,379.40

Illustrative difference vs. 1.90% flat rate: $4,220.60
These are educational comparisons, not tax quotes. Montana taxing jurisdictions adjust mills based on their tax bases and budgets. Special assessments and local fees can also remain on a bill. Use the actual mill levy on your property record or tax statement for a property-specific estimate.
Current enrollment workflow

How to Apply for the Montana Homestead Reduced Rate

As of August 24, 2026, Montana is accepting applications for the 2027 tax year. The current enrollment period runs from May 4, 2026 through March 1, 2027.

Verify whether the property is already enrolled. Use Montana’s Homestead Enrollment Verification Tool before submitting a duplicate application.
Find the property’s 17-digit geocode. Use Montana Cadastral and copy the geocode exactly as shown on the property record.
Confirm title ownership. Check whether the home is owned individually, under a contract for deed or through a qualifying grantor revocable trust.
Confirm seven-month principal residence use. Make sure you can truthfully attest that the home meets Montana’s residence requirement for the tax year.
Make sure property taxes are current. Delinquent property-tax balances can make the residence ineligible.
Prepare owner information. The application requires owner information, including the Social Security number used by DOR to administer the classification.
Apply online or by paper form. Montana currently offers online SmartFile enrollment and a downloadable paper application.
Save the submission confirmation. Keep a copy of the application and any online confirmation or mailing evidence.
Watch for approval or denial. DOR sends notice of whether the Homestead Reduced Rate is applied.
Verify the classification before relying on the tax estimate. Check the official enrollment-verification system and later compare the classification with the tax bill.
MT
Montana Homestead Enrollment Official Department of Revenue application and enrollment resources.
Open Montana Homestead Portal
Montana filing shortcuts

Practical Montana Tips That Prevent Avoidable Delays

Use the geocode—not a guessed parcel number. Montana’s paper instructions describe the geocode as a 17-digit property identifier. Copy it directly from Montana Cadastral, including letters if present.
DOR and the county treasurer do different jobs. Montana DOR handles appraisal/classification and Homestead Reduced Rate eligibility. County treasurers generally bill and collect property taxes. Paying the treasurer does not itself enroll the home.
The county clerk and recorder is a third office. That office records the separate creditor-protection Homestead Declaration. Do not send that declaration to DOR expecting a tax-rate reduction.
Verify automatic enrollment anyway. Homeowners who received the qualifying 2025 property-tax rebate and still own and occupy the same home may have been automatically enrolled for 2026. Verification takes less effort than filing a duplicate claim.
Mixed-use properties need more than one classification check. If one geocode contains your home plus an ADU or another dwelling, the principal-residence portion does not automatically give the other unit a reduced rate.
A separate adjacent parcel is not automatically part of your homestead. DOR may consider an adjoining lot when infrastructure such as a driveway, septic system or garage makes that parcel integral to the residence, but you need to identify the separate geocode and explain the connection.
New buyer / move scenario

What Happens If You Buy a Montana Home After the Homestead Deadline?

A late-year buyer should first determine whether the property itself was already approved for a reduced rate. That can change the current-year result.

The home was already enrolled

DOR’s current FAQ says the reduced rate remains with an approved property through the end of the calendar year even if ownership changes.

The new owner must still enroll in the new owner’s name to continue the Homestead Reduced Rate for the following year.

The home was not enrolled

A buyer who missed the current-year application period can be taxed at the standard residential rate for that year.

If the buyer ultimately satisfies the principal-residence test, Montana provides a refund procedure for the difference.

Closing tip: before estimating escrow or future taxes, check the Homestead Enrollment Verification Tool using the property’s geocode. A seller’s current tax amount by itself does not tell you whether the buyer will retain the same classification next year.
Moving between Montana homes

Can You Still Meet the Seven-Month Rule If You Move?

Yes, in qualifying circumstances. Montana law recognizes that a principal residence can change during the tax year.

If you move from one principal residence to another and pay the Montana property taxes associated with the residences while occupying them, the qualifying residence periods can be combined under the statutory rule.

Example: a homeowner who lives in Home A for four months and immediately moves into Home B for another qualifying period may be able to combine the residence time rather than automatically failing because neither home was occupied for seven months by itself.
Keep closing statements, property-tax payment records and proof of occupancy if your seven-month qualification depends on two consecutive Montana principal residences.
Property configurations that need extra attention

Mobile Homes, ADUs, Duplexes, Rental Units and Adjacent Lots

Manufactured or mobile home

A separately assessed manufactured/mobile home used as a qualifying principal residence can receive the reduced rate.

If the land and manufactured home have the same ownership, up to the applicable one-acre homesite can also qualify under DOR’s current treatment.

Duplex or ADU

The Homestead Reduced Rate applies only to the portion used as your principal residence.

A second dwelling or ADU may need its own Long-Term Rental Reduced Rate enrollment if it independently satisfies the rental requirements.

Long-term rental on your homestead parcel

A qualifying long-term rental generally must be rented in periods of at least 28 days for at least seven months of the year to a tenant who occupies it as a residence.

Adjacent vacant lot

An adjacent parcel does not qualify merely because you own it. DOR’s current FAQ allows consideration when improvements or infrastructure on the adjoining lot are integral to the residence.

Missed-deadline recovery route

Missed the Montana Homestead Deadline? A Refund May Still Be Available

Montana Code §15-6-407 creates a refund procedure for a homeowner who was eligible for the Homestead Reduced Rate but failed to claim it.

1 Be eligible You must have actually satisfied the homestead requirements for the missed year.
2 Pay the tax The current DOR FAQ directs 2026 refund claimants to first pay their 2026 property taxes in full.
3 File next year The statutory refund request must be filed by May 31 of the year after the missed Homestead Reduced Rate.
4 DOR verifies eligibility The department compares taxes actually paid with taxes that would have been due using the reduced rate.
5 Receive the difference If approved, DOR refunds the statutory difference.
6 Enroll going forward A refund for the missed year does not replace enrollment for the next year’s Homestead Reduced Rate.
The refund remedy is limited to one year. Do not treat it as an indefinite retroactive homestead claim.
2026 example: an otherwise eligible owner who failed to receive the Homestead Reduced Rate for 2026 can use the 2027 refund procedure, with the statutory filing deadline no later than May 31, 2027.
If DOR says no

What to Do If Your Homestead Reduced Rate Application Is Denied

Montana provides an informal-review process specifically for reduced-rate denials.

Read the denial notice completely. Identify whether the issue is residence, ownership, delinquent taxes, entity ownership, documentation or another eligibility condition.
Do not simply submit a duplicate application. A duplicate claim may leave the actual denial reason unresolved.
Request informal review within 30 days. Montana Code §15-6-418 provides a 30-day window after the denial notice for the owner to submit an objection using DOR’s written or electronic review process.
Explain extenuating circumstances if they genuinely exist. Montana law permits DOR to consider extraordinary, unusual or infrequent events that materially affected the application.
Attach evidence tied to the denial reason. Useful evidence may include title records, property-tax receipts, residency records, closing documents or trust documents.
REV
DOR Reduced-Rate Application & Informal Review Official enrollment page includes the electronic and paper informal-review options.
Open Montana Review & Enrollment Page
Attestation is legally significant

Why You Should Not “Try” a Homestead Application If You Do Not Qualify

The Montana Homestead application is made under penalty of perjury. Mistaken or incorrect approvals can be corrected by DOR, requiring the owner to pay the difference in property taxes.

A false or fraudulent application carries much more serious consequences. Montana Code §15-6-415 provides for assessment correction and a penalty equal to three times the statutory base penalty amount, plus interest. Criminal prosecution is also possible under the statute.

Montana can revise affected assessments even if the applicant later sells the property. The statute provides a 10-year assessment-revision period for a false or fraudulent reduced-rate application.
Income-based property-tax assistance

PTAP Can Provide More Relief for Lower-Income Montana Homeowners

The Property Tax Assistance Program (PTAP) is separate from Homestead Reduced Rate enrollment. PTAP reduces the applicable property-tax rate for qualifying lower-income homeowners on the first $418,000 of the primary residence’s market value.

For tax year 2026, PTAP uses 2024 Federal Adjusted Gross Income, excluding capital and income losses.

2026 applicant
Income range
Rate reduction
Single
$0 – $14,286
80%
Single
$14,287 – $19,532
50%
Single
$19,533 – $29,037
30%
Married / Head of Household
$0 – $19,249
80%
Married / Head of Household
$19,250 – $29,085
50%
Married / Head of Household
$29,086 – $38,917
30%
PTAP’s deadline is different from Homestead Reduced Rate enrollment. PTAP applications are due April 15. If you miss the PTAP deadline, DOR says the application is considered for the following year.
Do not manually multiply the Homestead Reduced Rate by a PTAP percentage and assume that is your final tax bill. DOR administers the classifications and assistance programs against the property’s taxable-value calculation; verify the resulting taxable value on your official record.
Montana DOR PTAP Eligibility & Application
Disabled veteran property-tax assistance

Montana Disabled Veteran Property Tax Relief for 2026

The Montana Disabled Veteran Assistance Program can reduce the property-tax rate by 50%, 70%, 80% or 100%, depending on qualifying income and filing status.

A qualifying veteran generally must own or be under contract to purchase the residence, live in it as a primary residence for at least seven months and provide U.S. Department of Veterans Affairs documentation showing a qualifying 100% service-connected disability.

SINGLE 2026 income ceiling: $62,598

100% rate reduction through $48,152, then graduated 80%, 70% and 50% reductions at the published higher income bands.

MARRIED / HEAD OF HOUSEHOLD 2026 income ceiling: $72,229

100% rate reduction through $57,781, followed by the 80%, 70% and 50% bands.

UNMARRIED SURVIVING SPOUSE 2026 income ceiling: $54,573

Additional VA-status requirements apply to the deceased veteran and surviving spouse.

Deadline: MDV applications are due April 15. Once approved, the application remains active while ownership and occupancy continue, but DOR verifies program eligibility each year.
Montana Disabled Veteran Assistance Program
A property-tax benefit many seniors overlook

Montana Elderly Homeowner/Renter Credit: Up to $1,150

Montana also offers a refundable Elderly Homeowner/Renter Credit. This is an income-tax credit, not the Homestead Reduced Rate, but it can still directly offset the burden of housing-related property taxes for eligible older residents.

Age 62+ You must reach age 62 by December 31 of the claim year.
Montana residence You must live in Montana for at least nine months during the claim year.
Six months in a Montana dwelling You must own, rent or lease a Montana home for at least six months.
Household income below $45,000 Gross household income must remain below the statutory program limit.
You may qualify even if you otherwise have no Montana income-tax filing requirement. DOR provides a way for eligible nonfilers to claim the credit through its TransAction Portal.
The credit can be up to $1,150; the actual amount is determined by a statutory formula using household income and qualifying property tax or rent.
Montana Elderly Homeowner/Renter Credit
Do not stop at basic homestead enrollment

Other Montana Property-Tax Programs Worth Checking

FIRST RESPONDER Disabled First Responder Assistance

Qualifying disabled firefighters, law-enforcement officers, emergency-care providers and certain surviving spouses can receive a 50%, 70%, 80% or 100% property-tax-rate reduction based on 2026 income and eligibility rules.

Application deadline: April 15.

Check DFR Program
FAMILY LAND Land Value Property Tax Assistance

This program can help when qualifying residential land value is disproportionately high compared with the value of the home and improvements.

Important conditions include a primary residence, five acres or less and at least 30 consecutive years of qualifying family ownership.

Check Land Value Assistance
LONG-TERM RENTAL Reduced Rate for Rental Units

A separate dwelling can qualify when rented for periods of at least 28 days for at least seven months of the year to tenants who use it as a residence.

This is particularly important when your homestead parcel includes an ADU, duplex unit or second dwelling.

Check Long-Term Rental Rules
Why your bill can still change

From Market Value to Montana Property-Tax Bill

Montana Homestead Reduced Rate property tax calculation flow Montana Department of Revenue determines market value, the homestead classification determines the tax rate, the rate produces taxable value, local mill levies are applied, and special assessments or fees may then appear on the final county tax bill. How the homestead classification reaches your bill Market Value DOR appraisal Tax Rate Homestead tiers Taxable Value Value × rate Mills + Assessments Final county bill Key takeaway The Homestead Reduced Rate lowers taxable value, but local mills and separate assessments still help determine the amount you ultimately owe.
Separate Title 70 protection

Montana Homestead Declaration: 2026 Creditor-Protection Rules

Montana’s traditional homestead law can protect qualifying home equity against execution or forced sale for certain debts. This protection is created under Title 70, Chapter 32 and is legally separate from the Department of Revenue’s Homestead Reduced Tax Rate.

2026 value limit: approximately $425,828

Montana Code set the homestead value limit at $350,000 in 2021 and requires the limit to increase by 4% every calendar year thereafter.

Montana DOR’s current 2026 guidance identifies the underlying 2026 homestead exemption amount as $425,828.

The protection is about equity

The statutory ceiling does not guarantee that you have $425,828 to protect. Your actual protected economic interest cannot exceed the equity you own in the qualifying homestead.

Mortgage debt therefore matters when evaluating how much equity is realistically exposed.

Dwelling or mobile home

Montana’s homestead definition includes the dwelling house or mobile home in which the claimant resides, together with qualifying appurtenances and the land, if any, on which it is situated.

Revocable trust can still qualify

Montana law permits a homestead to be selected from property contributed to a revocable trust when the property would otherwise qualify and the claimant is the qualifying settlor.

Undivided-interest rule: if you own only an undivided interest in real property, Montana Code §70-32-104 limits the exemption in proportion to that undivided ownership interest.
The $425,828 creditor-protection figure has nothing to do with the $378,000 first tier used by the 2026 property-tax Homestead Reduced Rate. They come from different Montana laws and solve different problems.
Recording workflow

How to File a Montana Homestead Declaration

Confirm that this is the residence you actually occupy. The statutory declaration must state that you reside on the premises and claim it as your homestead.
Obtain the complete legal description. Montana’s court form warns that a street address is not a legal description and that a deed reference alone is not enough.
Use the property’s full legal description. Depending on the property, this can include metes and bounds, subdivision and lot information or a certificate-of-survey description.
Complete the declaration. State that you reside on the premises, claim the property as a homestead and identify the qualifying premises.
Sign and acknowledge the declaration. Montana law requires the declaration to be executed and acknowledged in the same manner as a grant of real property. The Montana court form includes a notarial acknowledgment.
Record it in the correct county. Montana Code §70-32-107 requires the declaration to be recorded with the county clerk in the county where the land is located.
Keep the recorded copy. Retain the recording information with your deed, mortgage and estate planning records.
PDF
Montana Courts — Declaration of Homestead State court form containing the legal-description, signature and notarization structure.
Open Montana Declaration of Homestead Form
Homestead declaration limits

What a Montana Homestead Declaration Does Not Automatically Stop

A homestead declaration is meaningful protection, but it is not a universal shield against every secured debt or every forced sale.

Mortgage debt

Montana Code expressly allows execution or forced sale for qualifying debts secured by mortgages on the homestead.

Construction or vendor liens

Debts secured by construction or vendors’ liens on the premises are also listed among the statutory exceptions.

Older recorded mortgages

A mortgage executed and recorded before the homestead declaration was filed is specifically addressed by the statutory execution exception.

Bankruptcy, federal liens, Medicaid recovery, domestic obligations and other specialized claims can involve additional law beyond the basic Montana homestead statutes. If you are facing an actual foreclosure, judgment, bankruptcy or lien, treat the declaration as a legal-protection issue rather than a do-it-yourself property-tax filing question.
Equity examples

How the $425,828 Homestead Declaration Limit Works in Practice

Example A — Equity below the limit $400,000 home − $175,000 mortgage = $225,000 equity
Equity is below the 2026 statutory ceiling.
Example B — Equity above the limit $650,000 home − $100,000 mortgage = $550,000 equity
Equity exceeds the $425,828 2026 limit by about $124,172.
Example C — Fractional ownership Undivided ownership interest × applicable homestead limit
Montana law proportionally limits an undivided-interest claimant’s exemption.
These examples illustrate the statutory concept only. Actual equity, lien priority, ownership form and creditor rights can require a legal analysis.
Fast Montana relief matrix

Which Montana Homestead or Property-Tax Program Should You Check?

Your situation
Program to check
Why it matters
Principal residence 7+ months
Homestead Reduced Rate
Lower tiered Class 4 tax rates beginning in 2026.
Limited income
PTAP
30%, 50% or 80% tax-rate reduction on qualifying market value.
100% service-connected disabled veteran
MDV
50%, 70%, 80% or 100% tax-rate reduction depending on income.
Disabled qualifying first responder
DFR
Separate 50%-100% property-tax assistance.
Age 62+ and household income under $45,000
Elderly Homeowner/Renter Credit
Refundable income-tax credit up to $1,150.
Land value unusually high vs. home value
Land Value Assistance
Potential exemption of qualifying disproportionate land value.
Need creditor equity protection
Homestead Declaration
Separate Title 70 protection up to the applicable statutory equity limit.
High-cost Montana mistakes

10 Montana Homestead Mistakes to Avoid

1. Confusing the tax rate with the creditor declaration

They use the same word but different statutes, filing offices and benefits.

2. Assuming the 0.76% rate applies to the whole value of every homestead

The 2026 homestead rate is incremental above $378,000.

3. Assuming 0.76% is your final effective property-tax percentage

Montana first creates taxable value and then applies mill levies.

4. Using the wrong property identifier

Copy the 17-digit geocode directly from Montana Cadastral.

5. Ignoring LLC or trust ownership

Entity ownership can determine whether the principal residence is legally eligible.

6. Forgetting delinquent property taxes

The Homestead Reduced Rate requires the property taxes to be current.

7. Assuming an ADU automatically shares your homestead rate

Other dwellings may need separate long-term-rental enrollment.

8. Giving up after missing the filing deadline

Eligible homeowners can have a statutory one-year refund route.

9. Forgetting PTAP, MDV or the senior credit

Basic homestead enrollment may not be the strongest relief available.

10. Filing a creditor declaration with only a street address

Montana’s court form requires a legal description of the homestead property.

Primary-source research

Official Montana Sources Used for This Guide

Montana DOR — Homesteads & Long-Term Rentals

Current eligibility, ownership rules, enrollment information and 2026 tiered residential tax rates.

Open DOR Homestead Rules
Montana DOR — Homestead FAQs

Seven-month rule, entity ownership, new buyers, adjacent parcels, mixed-use property, missed-deadline refunds and 2027 enrollment.

Open Homestead FAQs
Montana DOR — 2027 Enrollment

Online enrollment, paper applications and informal-review resources.

Open Enrollment Page
Montana Code §15-6-405

Statutory Homestead Reduced Rate application and continuation rules.

Open §15-6-405
Montana Code §15-6-407

Refund procedure for an eligible homeowner who failed to claim the Homestead Reduced Rate.

Open §15-6-407
Montana Code §15-6-415

Improper approval corrections and false/fraudulent application penalties.

Open §15-6-415
Montana Code §15-6-418

Thirty-day informal review and extenuating-circumstances provisions for denied reduced-rate applications.

Open §15-6-418
Montana DOR — PTAP

2026 income thresholds, $418,000 benefit limit, rate-reduction percentages and April 15 deadline.

Open PTAP
Montana DOR — Disabled Veteran Assistance

2026 VA qualification, income bands, 50%-100% reductions and filing procedure.

Open MDV
Montana DOR — Elderly Homeowner/Renter Credit

Age, Montana residency, household-income and refundable-credit rules.

Open Senior Credit
Montana Code Title 70, Chapter 32

Homestead declaration, value limits, recording rules and creditor execution provisions.

Open Montana Homestead Statutes
Montana Courts — Homestead Declaration Form

State form showing the legal-description requirement, claimant signatures and notarial acknowledgment.

Open Declaration Form
Editorial verification: August 24, 2026. This guide incorporates Montana’s new 2026 Homestead Reduced Rate, current 2027 enrollment period, current property-tax assistance programs and the separate 2026 creditor homestead value limit. Future tax-rate thresholds, income thresholds and filing procedures can change.
Independent-site notice

About This Montana Homestead Guide

County-CAD.us is an independent informational website. It is not the Montana Department of Revenue, Montana State Legislature, Montana Judicial Branch, a county treasurer, county clerk and recorder or another government agency.

Do not send Social Security numbers, tax returns, VA disability records, recorded deeds or other sensitive documents to this website. Submit official applications only through the responsible Montana government office or verified government filing system.

Sources & Methodology Read Methodology
Editorial Policy Read Editorial Policy
Report an Update Contact County-CAD.us
10 Montana homestead questions

Montana Homestead Exemption FAQs

1. Does Montana have a homestead exemption for property taxes?

Montana now has a Homestead Reduced Tax Rate for qualifying principal residences beginning with tax year 2026. It is technically a reduced Class 4 property-tax rate rather than a traditional fixed-dollar exemption. A qualifying homeowner generally must own the residence, use it as the principal residence for at least seven months during the year, be current on Montana property taxes and claim only one residence for the Homestead Reduced Rate.

2. What are Montana’s Homestead Reduced Rate percentages for 2026?

For a qualifying 2026 principal residence, the first $378,000 of market value is taxed at a 0.76% Class 4 rate; the portion from $378,001 through $756,000 is taxed at 0.90%; the portion from $756,001 through $1,511,999 is taxed at 1.10%; and value at or above $1,512,000 is taxed at 1.90%. The tiers are incremental, so entering a higher bracket does not cause the home’s entire market value to be taxed at that higher rate.

3. What is the Montana Homestead Reduced Rate deadline?

The 2026 filing deadline was extended from March 1 to March 20, 2026. That enrollment period is closed. The Montana Department of Revenue is currently accepting applications for tax year 2027. The 2027 enrollment period opened May 4, 2026 and closes March 1, 2027.

4. Do I have to live in my Montana home all year to qualify?

No. The principal-residence rule generally requires at least seven months of qualifying residence during the year. DOR states that the months do not have to be consecutive in ordinary situations and that short absences such as vacations, medical stays or military deployments generally do not destroy eligibility when the property remains the principal residence. Montana also has special rules when a homeowner changes principal residences during the year.

5. Can a Montana home owned by an LLC receive the Homestead Reduced Rate?

Generally no. Montana’s property-tax Homestead Reduced Rate is available to qualifying individual owners and certain qualifying ownership arrangements such as grantor revocable trusts. Residential property owned by an LLC, corporation, partnership or nonrevocable trust generally does not qualify as the owner’s Homestead Reduced Rate property, although an entity-owned dwelling may qualify for the separate Long-Term Rental Reduced Rate if all rental requirements are satisfied.

6. What happens if I missed the Montana Homestead Reduced Rate application?

An otherwise eligible homeowner who failed to claim the Homestead Reduced Rate may use Montana’s statutory refund procedure. The refund claim must be filed by May 31 of the year following the missed reduced rate and is limited to one year. For a missed 2026 Homestead Reduced Rate, DOR’s current instructions say the homeowner must pay the 2026 property taxes in full and use the refund process beginning in 2027. The homeowner should also separately enroll for the 2027 reduced rate.

7. Can I get PTAP in addition to checking the Montana Homestead Reduced Rate?

PTAP is a separate Montana property-tax assistance program for qualifying limited-income homeowners. For tax year 2026, PTAP can reduce the applicable property-tax rate by 30%, 50% or 80% on the first $418,000 of qualifying primary-residence market value, depending on income and filing status. Its application deadline is April 15. Because DOR administers both the property’s classification and assistance benefits, use the official taxable value rather than simply multiplying the percentages together yourself.

8. What property-tax relief is available to disabled Montana veterans?

The Montana Disabled Veteran Assistance Program is available to qualifying veterans with a 100% service-connected disability and certain unmarried surviving spouses. Depending on 2026 income and filing status, the program can reduce the property-tax rate by 50%, 70%, 80% or 100%. The qualifying home generally must be owned or under contract for purchase and used as the primary residence for at least seven months. Applications are due April 15.

9. How much home equity does the Montana Homestead Declaration protect in 2026?

Montana Code set the creditor homestead value limit at $350,000 for 2021 and requires a 4% annual increase. Montana Department of Revenue’s current 2026 guidance identifies the underlying homestead exemption amount as $425,828. This is an equity-protection limit under Montana’s Title 70 homestead law and is completely separate from the 2026 property-tax Homestead Reduced Rate.

10. Where do I file a Montana Homestead Declaration?

A creditor-protection Homestead Declaration is recorded with the county clerk and recorder in the county where the land is located. Montana law requires a declaration stating that the claimant resides on and claims the premises as a homestead and includes a description of the property. The Montana Judicial Branch form warns that a street address is not a legal description. The declaration is executed and acknowledged in the manner required for a real-property grant and the court form includes a notarial acknowledgment.

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