Montana Property Tax Guide: Pay, Search, Due Dates & Exemptions
Montana property tax is split between state appraisal work and county collection work. The Montana Department of Revenue values and classifies property, while county treasurers mail tax bills, collect payments and handle receipts.
Use this guide to search your property record, understand real property tax due dates, know where to pay, review appraisal notices, file an informal review or appeal, and check Montana property tax relief programs before you take official action.
Quick Answer: Where to Start for Montana Property Tax
Start with your county treasurer if you need to pay a bill, confirm a receipt, ask about special assessments, or check whether the payment posted. Montana county treasurers mail and collect real property taxes.
Start with the Montana Department of Revenue if you need to review property classification, appraised value, property characteristics, exemption or relief-program eligibility, or an appraisal notice.
Fast Route: What Should You Do First?
Use this table to choose the correct official route. Many delays happen because taxpayers contact the state for a county payment issue or contact the county for a state appraisal issue.
| Your Need | Start Here | Why | Next Step |
|---|---|---|---|
| Pay Montana property tax | County treasurer | County treasurers collect real property tax. | Use your county payment portal, mail option, or treasurer office instructions. |
| Search property value or characteristics | Property.MT.gov | DOR property search shows property characteristics and value information. | Search by property number, assessment code, name, or address. |
| Find geocode or parcel map | Montana Cadastral | The statewide parcel map helps locate property and geocode details. | Search map by geocode, owner, address, assessment code, subdivision, or map location. |
| Disagree with value or classification | DOR informal review or CTAB appeal | Value and classification disputes follow review and appeal deadlines. | Check your notice date and file AB-26 or county tax appeal on time. |
| Need lower tax rate or assistance | Montana DOR property tax help | Relief programs have separate eligibility and application rules. | Review PTAP, homestead, long-term rental, veteran, responder, elderly credit or land-value help. |
Montana Property Tax Roles: DOR vs County Treasurer
Montana property tax is not handled by one office. The Department of Revenue values and classifies property. Local governments set mill levies, and county treasurers calculate and collect taxes from the bill.
This role split matters because paying your bill does not fix an appraisal problem, and filing an appraisal review does not automatically pay the tax bill.
| Task | Correct Office | What It Means | Official Link |
|---|---|---|---|
| Property appraisal and classification | Montana Department of Revenue | Reviews market value, property characteristics and classification. | Montana Property Assessment |
| Property search | Property.MT.gov | Search property number, assessment code, name or address. | Open Property.MT.gov |
| Parcel map and geocode | Montana Cadastral | Map-based statewide parcel and geocode research. | Open Montana Cadastral |
| Bill, receipt or payment | County treasurer | Real property bills, payments, receipts and special assessments. | Find County Treasurer |
| County tax appeal | County Tax Appeal Board / Clerk and Recorder filing route | Formal appeal route after appraisal notice or informal review decision. | MTAB Appeal Process |
How to Search Montana Property Tax Records
For most users, the easiest starting point is Property.MT.gov. It lets you look up property characteristics by property number, assessment code, name or address.
If you need a map view, geocode, parcel location, or surrounding property context, use Montana Cadastral. It is especially useful when an address search is not enough.
- Open Property.MT.gov for property characteristics and assessment information.
- Search by property number or assessment code if you have it.
- Use owner name or property address if you do not know the code.
- Open Montana Cadastral if you need geocode, parcel map or location context.
- Save the assessment code, geocode, owner name, address, classification and value before contacting any office.
How to Pay Montana Property Tax
Montana residential real property taxes are collected by county treasurers. Your county treasurer is the correct office for bill copies, payment portals, receipts, mailing instructions, escrow questions and special assessment questions.
The state Department of Revenue is not the normal payment office for real property tax bills. Use your bill or county treasurer website for exact payment methods.
Montana Property Tax Due Dates
Montana real property taxes are commonly billed in two payments. The first payment is due by 5:00 PM on November 30 or within 30 days of the postmark on the tax notice, whichever is later. The second payment is due by 5:00 PM on May 31.
If a due date falls on a weekend or holiday, Montana DOR states the due date moves to the next business day. Always check the county tax bill because county instructions and special assessments can affect what you owe.
| Date | What It Means | Action to Take |
|---|---|---|
| Late October | County treasurers usually mail real property tax bills. | Watch your mail and county treasurer portal. |
| November 30 | First payment due, or 30 days after postmark if later. | Pay or confirm escrow before the deadline. |
| May 31 | Second payment due. | Do not forget the spring deadline after paying the first half. |
| Weekend or holiday | Due date generally moves to the next business day. | Still pay early to avoid processor, mail or posting problems. |
| After delinquency | Penalty, interest or collection consequences may apply under county rules. | Contact your county treasurer immediately. |
Payment warning: Appraisal review and tax appeal deadlines are separate from payment deadlines. If you dispute the value, do not ignore the tax bill.
What Is on a Montana Property Tax Bill?
Montana DOR explains that real property tax bills can include the property owner’s name, legal description, taxable values, general property tax and special fees. Special fees may include items such as street maintenance, irrigation, police, fire or other local assessments.
This is why two properties with similar values can have different final bills. The tax bill depends on taxable value, local mill levies and any special assessments in that jurisdiction.
| Bill Item | What It Means | Where to Ask |
|---|---|---|
| Taxable value | Value used for tax calculation after classification and exemptions. | DOR for value/classification questions. |
| Mill levies | Local tax rates set by taxing jurisdictions. | County or local taxing jurisdiction. |
| Special assessments | Extra local charges such as fire, police, irrigation or street-related fees. | County treasurer or local jurisdiction listed on the bill. |
| Payment balance | Amount due for first half, second half, full payment or delinquency. | County treasurer. |
Montana Appraisal Notice: What to Check Before You Pay
A Montana classification and appraisal notice is not the same as the tax bill. It shows how the Department of Revenue classified and valued your property for the appraisal cycle.
For the 2025–2026 valuation cycle, DOR says owners receive an appraisal notice in 2025. If you disagree with value or property characteristics, review deadlines start from the date on that notice.
| Notice Area | Why It Matters | What to Check |
|---|---|---|
| Assessment code | Used for DOR review and property search. | Match it before filing AB-26 or appeal forms. |
| Geocode | Identifies the parcel in Montana systems. | Use Cadastral if you need map confirmation. |
| Classification | Property class affects taxable value and tax rate structure. | Confirm residence, rental, agricultural, forest, commercial or personal-property status. |
| Market value | Core value used before tax rate and local levies. | Compare with sales, appraisal, condition and property characteristics. |
| Property characteristics | Square footage, bedrooms, bathrooms and building facts can affect value. | Correct physical errors quickly. |
| Notice date | Starts the review or appeal deadline. | Calendar the 30-day deadline immediately. |
How to Challenge a Montana Property Value or Classification
If you disagree with your Montana property valuation or need corrections to property characteristics, the main first route is a Request for Informal Classification and Appraisal Review, Form AB-26.
DOR states Form AB-26 must be submitted within 30 days from the date on the classification and appraisal notice. For the 2025–2026 cycle, approved adjustments can apply to tax years 2025 and 2026 when filed on time.
- Open your classification and appraisal notice.
- Find the assessment code, geocode and current assessed value.
- Review property details on Property.MT.gov.
- Gather value evidence or property-characteristic correction proof.
- Submit Form AB-26 online or send the paper form to the DOR field office serving your county.
- Keep proof of submission and copies of supporting documents.
Late review note: For the 2025–2026 cycle, DOR states a missed 30-day informal review deadline may still allow a request until June 1, 2026, but any valuation adjustment applies only to tax year 2026. Always use current DOR guidance for your notice year.
County Tax Appeal Board and MTAB Appeal Route
You can choose to appeal classification or assessment values directly to the local County Tax Appeal Board instead of using the informal review process. The appeal is filed with the county Clerk and Recorder in the county where the property is located.
The Montana Tax Appeal Board explains that a county tax appeal must be filed within 30 days from the DOR appraisal notice or 30 days after you receive the DOR decision following informal review.
| Appeal Stage | Where It Goes | Deadline or Timing | Practical Tip |
|---|---|---|---|
| Informal review | Montana DOR | Within 30 days of classification and appraisal notice. | Use AB-26 when you want DOR to review value or characteristics. |
| Direct county appeal | County Clerk and Recorder / CTAB | Within 30 days from the appraisal notice. | File with the county, not DOR or MTAB. |
| Appeal after DOR decision | County Tax Appeal Board | Within 30 days after DOR informal review decision. | Attach decision and evidence clearly. |
| Appeal after CTAB decision | Montana Tax Appeal Board | Within 30 days of receiving the county board decision. | Include reasons, value sought, county appeal copy and county decision. |
Evidence Checklist for Montana Appraisal Review or Appeal
Good evidence explains why the classification, characteristics or value is wrong. A simple complaint that the tax bill is too high is usually weaker than a value-based packet.
For valuation changes, DOR lists examples such as your market value estimate, purchase price near the valuation date, a fee appraisal, comparable sales or listings, builder cost breakdown and income/expense information for income-producing property.
| Evidence Type | Best For | How to Use It |
|---|---|---|
| Purchase agreement or closing statement | Recent buyers. | Show price, date and whether the sale was arm’s length. |
| Comparable sales or listings | Market value disputes. | Use similar location, size, condition, age and valuation timing. |
| Fee appraisal | High-value or complex disputes. | Use an appraisal close to the relevant valuation date when possible. |
| Property characteristic proof | Wrong square footage, bedrooms, bathrooms, condition or building facts. | Use photos, floor plans, permits, inspection reports or repair records. |
| Builder cost breakdown | New construction, remodels or incomplete work. | Separate land, labor, materials, unfinished items and condition issues. |
| Income and expense records | Commercial, industrial or income-producing property. | Show actual income, vacancy, expenses and market conditions. |
| Relief-program documents | PTAP, homestead, long-term rental, veteran, responder or elderly relief. | Use ownership, occupancy, income, disability, military or rental documents. |
Payment of Taxes Under Protest
If you challenge your Montana property value or classification, do not ignore the bill. DOR explains that a valid protest of property taxes generally requires one of several review or appeal actions, such as filing AB-26, filing a county tax appeal, filing with the State Tax Appeal Board, or filing a district court appeal.
Payment-under-protest issues can become technical. Use official instructions and speak with your county treasurer or a qualified professional if you are trying to protect rights while paying a disputed bill.
Do not guess here: Paying late can create penalties, but failing to preserve review or appeal rights can also hurt your case. Treat payment and appeal deadlines as separate deadlines.
Montana Property Tax Exemptions, Reductions and Relief Programs
Montana has several property tax relief routes. Each program has different eligibility rules, documents and filing requirements. Do not assume that one approval covers every year or every property.
| Program | Who It May Help | Key Official Detail | Official Link |
|---|---|---|---|
| Property Tax Assistance Program | Residential homeowners on fixed or limited income. | May reduce the tax rate by 30%, 50% or 80% on the first $418,000 of market value. | PTAP |
| Homestead reduced rate | Principal residence owners. | Generally tied to living in the property at least seven months and being current on property taxes. | Homestead Relief |
| Long-term rental reduced rate | Owners of qualifying long-term rental housing. | Rental must be to tenants for 28+ days at a time and rented for 7+ months as a residence. | Long-Term Rental Relief |
| Disabled First Responder assistance | Qualifying disabled first responders or certain surviving spouses. | Reduced rate may be 50%, 70%, 80% or 100% based on program rules. | Property Tax Help |
| Montana Disabled Veterans assistance | Qualifying 100% disabled veterans or certain surviving spouses. | Reduced rate may be 50%, 70%, 80% or 100% based on eligibility. | Property Tax Help |
| Elderly homeowner/renter credit | Individuals 62+ with qualifying household income. | Refundable income tax credit can be up to $1,150 under current DOR guidance. | Elderly Credit |
| Land value assistance | Some residential owners with high land value relative to improvements. | May help when family ownership and land-value conditions are met. | Property Tax Help |
PTAP: Property Tax Assistance Program
PTAP helps Montana homeowners on fixed or limited income by reducing the property tax rate on their home. For tax year 2026, DOR lists income thresholds based on 2024 Federal Adjusted Gross Income, ownership, occupancy and marital status.
DOR says the PTAP benefit applies only to the first $418,000 of the primary residence’s market value. For homes on agricultural or forest land, the benefit applies to the home and one-acre homesite.
- Confirm you own or are under contract to purchase the home.
- Confirm the home is your primary residence for at least seven months of the year.
- Check the current income thresholds for the tax year.
- Apply online or submit the paper PTAP form to your local DOR field office.
- If already approved, check whether DOR says you need to reapply.
Montana Homestead and Long-Term Rental Reduced Tax Rate
Montana’s homestead and long-term rental reduced rate rules are important for 2026 and 2027 property tax planning. The homestead reduced rate is for qualifying principal residences, while the long-term rental reduced rate is for qualifying residential rentals.
DOR states the 2027 application period for homestead and long-term rental reduced tax rate enrollment is May 4, 2026 through March 1, 2027.
| Topic | Homestead | Long-Term Rental |
|---|---|---|
| Main use | Principal residence. | Tenant residence rented long term. |
| Time requirement | Owner lives in the property at least seven months of the year. | Rented for at least seven months of the year. |
| Lease length | Not a rental requirement. | Tenant rental periods must be 28+ days at a time. |
| Tax status | Property taxes must be current. | Property taxes must be current. |
| Ownership | Individual, couple or grantor revocable trust may qualify. | Individuals, entities and some trusts may qualify under DOR rules. |
| Common mistake | Assuming a second home qualifies. | Assuming a short-term rental qualifies. |
- Open the DOR homestead and long-term rental page.
- Verify whether your property is already enrolled.
- Use the online enrollment route or paper application if required.
- Gather geocode, owner details, property use details and tax-payment status.
- If denied, use the DOR informal review route listed on the enrollment page.
2026 Tiered Rates for Homesteads and Long-Term Rentals
DOR explains that the 2026 reduced tax rate uses a tiered incremental structure for qualifying homesteads and long-term rentals. Each portion of market value is taxed at the rate for that bracket.
This means the rate is not applied to the entire property value at one single percentage. Check DOR’s official page for current brackets and property-type rules.
| 2026 Market Value Portion | Listed Rate for Qualifying Homestead or Long-Term Rental | How to Read It |
|---|---|---|
| First $378,000 | 0.76% | Applies to the first value bracket only. |
| $378,001 to $756,000 | 0.90% | Applies only to the portion in this bracket. |
| $756,001 to $1,511,999 | 1.10% | Applies only to the portion in this bracket. |
| $1,512,000 or more | 1.90% | Applies to the portion over the bracket threshold. |
Rate warning: Property tax bills also depend on taxable value, local mill levies, special assessments and county billing. A lower rate does not replace the need to review the full county tax bill.
New Montana Homeowner Checklist
New owners should not wait until the tax bill arrives. Search the property record early, confirm the mailing address, check geocode, review homestead eligibility and watch for appraisal notices.
- Search the property on Property.MT.gov.
- Find the geocode on Montana Cadastral.
- Confirm the correct owner and mailing address.
- Review classification, market value and property characteristics.
- Check whether you qualify for homestead or property tax assistance.
- Ask the county treasurer about escrow, payment schedule and receipts.
Before You Contact an Office: Document Checklist
Having the right documents ready can save multiple calls. Use this checklist before contacting DOR, a county treasurer, a county Clerk and Recorder or a tax appeal board.
Assessment code, geocode, property number, address, county and owner name.
Classification and appraisal notice, value history, property characteristics and DOR correspondence.
Tax bill, payment confirmation, receipt, escrow statement and county treasurer notice.
Occupancy proof, income records, disability or veteran documents, rental lease, trust or ownership proof.
Comparable sales, appraisal, purchase agreement, photos, repair estimates and income/expense records.
AB-26 confirmation, county appeal form, decision letters, mailing proof and hearing materials.
Common Montana Property Tax Mistakes to Avoid
Most problems come from mixing up offices, missing the appraisal notice deadline, forgetting the second-half payment or assuming a relief program applies automatically.
County treasurers handle bills, payments and receipts.
Appraisal notice appeal deadlines can arrive before the bill.
Paying the November installment does not erase the May installment unless you paid in full.
Use market value, property facts and documentation, not only “taxes are too high.”
The geocode is often needed for homestead, rental and parcel research.
The long-term rental reduced rate has specific tenant and time rules.
Related Property Tax Guides on This Site
These internal guides can help you understand property tax basics before using Montana’s official state or county systems.
Official Montana Property Tax Links
Use these official links only when you are ready to search a property, pay a county bill, file a review, appeal a value, verify reduced-rate enrollment or apply for relief.
Montana Property Tax FAQs
Who collects Montana property taxes?
County treasurers collect Montana residential real property taxes. Use your county treasurer for payment portals, receipts, bill copies and special assessment questions.
Who values Montana property for tax purposes?
The Montana Department of Revenue handles property appraisal, classification, property characteristics and many review or relief-program processes.
When are Montana property taxes due?
Real property taxes are due by 5:00 PM on November 30 or within 30 days after the postmark on the tax notice, whichever is later, for the first payment. The second payment is due May 31.
What happens if the due date falls on a weekend or holiday?
Montana DOR says if a due date falls on a weekend or holiday, the due date moves to the next business day. Paying early is still safer.
Where do I search Montana property tax records?
Use Property.MT.gov to search by property number, assessment code, owner name or address. Use Montana Cadastral for parcel map and geocode research.
What is a Montana geocode?
A geocode is a parcel identifier used in Montana property systems. It is often needed for homestead, rental, parcel and appraisal research.
Is the appraisal notice the same as the tax bill?
No. The appraisal notice shows classification and value information. The tax bill is mailed later by the county treasurer and shows the amount due.
How do I challenge my Montana property value?
You can request informal review with Montana DOR using Form AB-26 or appeal to the local County Tax Appeal Board, depending on timing and strategy.
What is the AB-26 deadline?
DOR states Form AB-26 must be submitted within 30 days from the date on the classification and appraisal notice. Check your notice and current DOR instructions.
Can I appeal directly to the County Tax Appeal Board?
Yes, Montana guidance allows direct appeal to the local County Tax Appeal Board. The appeal is filed with the county Clerk and Recorder, not with DOR or MTAB.
When does the county tax appeal board hear cases?
Montana Tax Appeal Board guidance says county hearings are generally scheduled in the county seat between July 1 and December 31.
What evidence helps in a Montana appraisal review?
Helpful evidence can include recent purchase price, fee appraisal, comparable sales, listings, property-characteristic proof, builder cost breakdown and income/expense records for income-producing property.
Should I pay my tax bill if I am appealing?
Do not ignore the bill. Payment deadlines are separate from review and appeal deadlines. Contact your county treasurer and review payment-under-protest rules if needed.
What is Montana PTAP?
The Property Tax Assistance Program helps qualifying homeowners on fixed or limited income by reducing the property tax rate on the home, subject to ownership, occupancy and income rules.
What is the Montana elderly homeowner/renter credit?
It is a refundable income tax credit for qualifying individuals age 62 or older with household income below the DOR limit. Current DOR guidance lists a credit up to $1,150.
What is the Montana homestead reduced tax rate?
It is a reduced property tax rate for qualifying principal residences. DOR says the owner generally must live in the property at least seven months and be current on property taxes.
What is the long-term rental reduced tax rate?
It is a reduced rate for qualifying rental homes or apartments rented to tenants for 28+ days at a time and rented for at least seven months as a residence.
When is 2027 reduced-rate enrollment open?
DOR states the 2027 homestead and long-term rental reduced property tax rate application period is May 4, 2026 through March 1, 2027.
Do short-term rentals qualify for the long-term rental reduced rate?
Usually no. The long-term rental reduced rate has tenant-residence and time requirements, including rental periods of 28+ days at a time and at least seven months of rental use.
Is CountyPropertyTaxes.us an official Montana government website?
No. This is an independent informational guide. Use official Montana DOR, Montana Cadastral, MTAB and county treasurer pages for final account-specific action.
Bottom Line
For Montana property tax, use the county treasurer for payment and receipts, Property.MT.gov for property records, Montana Cadastral for geocode and parcel map, DOR for appraisal review and relief programs, and CTAB or MTAB routes for formal appeals.
Pay RouteSearch PropertyDue DatesAppeal StepsRelief ProgramsOfficial Links