Montana Properties With Back Taxes: Tax Delinquent Properties for Sale List 2026

A property has back taxes when its owner has not paid the property tax bill. In Montana the county can then sell it at a tax sale.

777 tax delinquent properties are on Montana county lists right now, across 1 county. Every row below comes from the county's own published list; the parcel numbers, addresses and opening bids are the county's figures.

Watch: researching a tax lien before you buy

A narrated walkthrough: find tax liens by county, read the Research Score, risk flags and sources, set your maximum bid and save a Deal Radar.

Read the transcript

If you came here for tax liens, start in Property Research and choose Tax Lien.

Liens without a set sale date sit under Timing not assigned yet. That includes over the counter liens you can buy now, with no auction.

Pick a state and a county. I'll use Maricopa County, Arizona.

Tick Mapped only to see each lien on the map, and switch to aerial imagery to look at the property from above.

Open a lien to see the full research.

The Research Score grades it from A to D, out of one hundred, and shows where the points come from.

Estimated value and confidence gives you a value range, and tells you how far to trust it. It's a starting point, not an appraisal.

Risk flags come up before you buy: whether it's still available, liens that may survive, and a source that may be out of date. Open one to see what to check.

The due diligence checklist shows the lien to value ratio and the back taxes, and what you still need to verify yourself.

Sources and freshness links every fact back to the county's own record.

Then calculate your maximum bid. You get a comfortable range, a caution range, and the price where you should stop.

Back in Research, mark it as a bid candidate, and add private notes that only you can see.

Save your search as a Deal Radar, and new matches come to you by email.

That's tax liens: from a county to a lien worth buying, with every fact sourced to the county.

Counties with a published list

CountyParcelsPast salesNext saleLowest opening bid
Yellowstone777not yet posted$5

How Montana sells tax delinquent property

Sale type
tax lien assignment followed by tax deed
Investor return
10%/yr (5/6 of 1%/month) interest + 2% penalty
Redemption period
3 years (36 months from attachment of the tax lien)
Bidding method
n/a
Typical sale season
typically July after delinquency notice; assignments may remain available

Not a competitive auction, the COUNTY is the tax-lien purchaser; investors obtain the lien only by paying the delinquency to take an 'assignment' (MCA 15-17-323), then may pursue a tax deed after the 36-month redemption.

Statutory terms last verified 2026-07-29; see the Montana investing profile for the sources and the TaxLienSimple Index score.

Where Montana counties publish the list

The office that publishes this notice is not the same in every state: it can be the treasurer, the tax collector, the clerk, the sheriff, the court, or the auction platform named on the county page. Before you rely on a row, check four things on the county's own page — the posted date, the sale date, whether the record is current or historical, and the official link you took it from. Our guide to finding and verifying a list walks through that check and how to keep the result as a watchlist: how to find and verify a tax sale list.

What this page does not show

Everything above is the sale itself: the date, the platform, the statutory terms and the county's own sources, free and without an account. What it does not show is the property-level detail, or the 409 other county and city sales tracked alongside this one.

  • The 777 parcels published for Montana. Opening bids, addresses and assessed values, with the official source on each row. This page shows a sample.
  • The full sale calendar. 410 tracked county and city sales, filterable by date, state and sale type, instead of one page at a time.
  • 330,391 parcels across 939 counties. Searchable nationwide, with a research score and the pre-bid warnings behind it.

A free account previews two counties and needs no card. Paid plans start with a 7-day trial for $1.99 and carry a 7-day money-back guarantee. TaxLienSimple is a research platform: we publish the records and the sources, we do not sell properties and we make no claim about what any certificate or parcel is worth.

Montana tax delinquent property questions

Where can I find a list of tax delinquent properties for sale in Montana?

Each Montana county publishes its own list before the sale, usually on the treasurer, tax collector or revenue commissioner site or through its auction platform. TaxLienSimple collects those county lists into one place: 777 parcels across 1 county right now, each linked to the county's official listing.

Can I buy a property with delinquent taxes in Montana?

Montana runs tax lien assignment followed by tax deed sales. Not a competitive auction, the COUNTY is the tax-lien purchaser; investors obtain the lien only by paying the delinquency to take an 'assignment' (MCA 15-17-323), then may pursue a tax deed after the 36-month redemption. Redemption: 3 years (36 months from attachment of the tax lien). Investor return: 10%/yr (5/6 of 1%/month) interest + 2% penalty.

What is the lowest opening bid on the Montana list?

The lowest opening bid on the current Montana list is $5. Opening bids are the county's figure (taxes, interest and costs owed), not the property's value.

When is the next tax sale in Montana?

No Montana county has a confirmed upcoming date in our data at the moment; the county pages update when a date is posted.