Missed the Montana Homestead Rate Deadline? There Is a Refund Window

If you bought a Montana home and nobody told you to enroll it in the Homestead Reduced Rate, you are probably being taxed at 1.90% right now instead of a rate that starts at 0.76%.

The enrollment deadline for the 2026 tax year has passed. It was March 1, 2026, extended by the Department of Revenue to March 20, 2026. That is over.

You are not out of luck. There is a refund, and it has its own deadline: January 1 through May 31, 2027.

That window is the reason this page exists. Nearly every article written about the homestead rate was published before the deadline and tells you to go apply. That advice is now dead. This is what is actually available.

[keyfact] Montana Department of Revenue: if the home was not previously enrolled, the property is taxed at the flat rate of 1.9% for 2026, but the owner can claim a refund of the difference between January 1, 2027 and May 31, 2027. Source: Montana Department of Revenue, Homestead FAQs, revenue.mt.gov. [/keyfact]

Why this happened to new buyers specifically

Montana's reduced residential property tax rate is not applied automatically to everyone who owns a house. It runs off enrollment.

Homeowners who received the 2025 property tax rebate, and who still own and live in the same home for at least seven months of 2026, were carried over automatically. They never had to do anything, which is why most Montanans have no idea an enrollment step exists.

Everyone else had to enroll. That is overwhelmingly two groups: people who did not receive the 2025 rebate, and people who bought a home. A new buyer inherits the house but not the seller's enrollment. If you closed and did not enroll during the window, your parcel is sitting at the flat 1.90% rate.

This is the most common way a Montana homeowner ends up paying roughly double the bottom-band rate on the first $378,000 of their home's value without ever being told.

Who qualifies

The eligibility rules did not change because the deadline passed. To qualify for the reduced rate on a property:

Occupancy. The property must be your principal residence for at least seven months each year. This is a use test, not an intent test.

Ownership. Individual ownership qualifies. A revocable grantor trust qualifies if the occupant is the grantor and uses the home as their principal residence. The Department is explicit that homes owned by other entities, including irrevocable trusts and LLCs, do not qualify.

Current on taxes. You must be current on your property taxes to be eligible. The Department states that for 2026 taxes you must have paid in full or made the first-half payment. Delinquency disqualifies you outright.

Second homes and short-term rentals never qualified and do not qualify now. They are taxed at a flat 1.90% by design, which we cover in second homes and short-term rentals are taxed at 1.90% in Montana.

The LLC problem is worth its own paragraph

People put houses in LLCs for liability reasons, on advice that was usually about rental property and got applied to a primary residence by accident.

If your principal residence is titled to an LLC, it does not qualify for the reduced rate. It is taxed at 1.90%. There is no exception form.

A revocable living trust is the ownership structure that preserves eligibility, and it is what most estate planning attorneys would have used for a primary residence anyway. If you are in an LLC and living in the house, that is a conversation to have with your attorney before the next tax year, not after.

Also worth knowing for anyone financing: conventional mortgage guidelines generally do not permit an owner-occupied property to be titled to an LLC either. If this describes you, it affects more than your tax bill.

What the difference actually costs

The reduced rate is tiered and marginal: 0.76% on the first $378,000 of market value, 0.90% on the portion up to $756,000, and so on. Without enrollment, it is a flat 1.90% on the entire market value.

On a $500,000 primary residence, the taxable value under the reduced rate is $3,970.80. At the flat 1.90% rate it is $9,500. That is roughly 2.4 times as much taxable value, and whatever mill levy your county applies is applied to that larger number.

I am deliberately not converting that to a dollar bill, because your mill levy is local and I would be guessing. The mechanics, and where to look up your own mills, are in Montana's tiered property tax rates and what they do to your payment.

Where you feel it: escrow

If you have a mortgage, you do not write the tax check. Your servicer does, out of your escrow account.

So the sequence for an unenrolled new buyer looks like this. You close. Your escrow was set up on an estimate, often the seller's prior-year taxes, and the seller may well have been enrolled, meaning their bill was the low one. The real bill arrives at 1.90%. Your escrow account is short.

At the annual escrow analysis, two things happen at once. You owe the shortage, either as a lump sum or spread over twelve months. And your ongoing monthly collection rises to cover the higher annual bill going forward.

That is how a missed enrollment turns into a payment increase of a few hundred dollars a month, roughly a year after the fact, for something that could have been prevented with a form. The full mechanism is in escrow accounts in Montana, and why your payment changes after year one.

The refund, when you claim it, comes to you, not to your escrow account. It does not automatically fix a shortage. You will likely need to apply it yourself.

The effect is largest where assessed values are highest, which in practice means the western and resort counties. The Gallatin, Flathead and Missoula market pages give a sense of the values involved, and the difference between the two rate paths on a home at those price levels is not a rounding error.

What to do now

Check your enrollment status. Go to Homestead.mt.gov. The Department's portal lets you verify whether a property is enrolled, not just enroll it. Do this even if you think someone handled it, because "I assumed the title company did it" is the single most common version of this story.

Look at your tax statement. Your county treasurer's statement shows the taxable value. If it looks like roughly 1.9% of your market value, you are not enrolled.

Get current on any delinquent taxes. Delinquency disqualifies you, and it is the one eligibility item you can still fix.

Calendar January 2027. The refund window for the 2026 difference opens January 1, 2027 and closes May 31, 2027. Set the reminder now. A refund window is worth nothing to someone who remembers it in June.

Enroll for the next tax year when the window opens. The refund fixes 2026. It does not enroll you going forward. Watch revenue.mt.gov for the next enrollment window rather than assuming the dates repeat. This program has already had its deadline extended once, and I am not going to publish 2027 dates I cannot verify.

One thing I will not tell you

I have seen the March 1 date reproduced all over the internet without the March 20 extension, and I have seen the extension reproduced without noting that it has since passed. Both are now wrong in a way that costs someone money.

Verify anything you read about this program, including this page, against revenue.mt.gov before you act on it. This page was last reviewed in the month shown above it. The Department changes these dates.

If you are unsure where your property stands and you have a loan with us, or you are buying in Montana and want the tax line in your payment estimated honestly rather than optimistically, tell us about the property and we will look at it with you.