Montana (MT)

Capital Gains Tax on Home Sales in Montana (2026)

Montana taxes capital gains at 5.9%. Combined with federal taxes, your effective rate on a home sale could reach 24.7%.

MT State Rate

5.9%

Top marginal rate; 2% credit available

Federal Rate

15%

Most common long-term bracket

Combined Effective

24.7%

On $150K taxable gain (example)

Example: $150,000 Taxable Gain in Montana

After the $250K/$500K exclusion, here's what a typical seller might owe.

Federal Capital Gains (15%)$22,500
Montana State Tax (5.9%)$8,850
NIIT (3.8%)$5,700
Total Tax$37,050

$250K/$500K Exclusion

If Montana is where your primary residence is located and you've lived there at least 2 of the last 5 years, you can exclude up to $250K (single) or $500K (married filing jointly) of your capital gain from both federal and state taxes.

Investment Property Warning

Investment and rental properties in Montana don't qualify for the exclusion. You'll owe 5.9% state tax plus federal tax on the full gain, plus 25% depreciation recapture on any depreciation claimed.

Best Time to Sell in Montana

In Montana, homes sold in January sell for 11% more than those sold in August (-7%). Timing your sale right can offset a significant portion of your tax bill.

111
Jan
111
Feb
97
Mar
95
Apr
98
May
102
Jun
97
Jul
93
Aug
100
Sep
98
Oct
99
Nov
99
Dec

How Montana Compares to Neighboring States

Capital gains tax rates on home sales in Montana and nearby states.

StateRateTax on $150K Gain
0%$0
0%$0
1.95%$2,925
5.695%$8,543
MontanaYou
5.9%$8,850

Selling in South Dakota instead of Montana would save $8,850 in state tax on a $150K gain.

Understanding Capital Gains Tax in Montana

Montana taxes capital gains up to 5.9% but offers a 2% capital gains credit, effectively reducing the rate for qualifying gains. This credit is notable and can save significant amounts.

Bozeman, Missoula, and the Flathead Valley have seen extreme appreciation driven by remote workers and lifestyle migrants. Many sellers face gains well above the exclusion.

Montana has no sales tax, which combined with the capital gains credit makes the overall tax environment competitive.

The state's resort and ranch property market can involve very high-value transactions where the 2% credit and careful tax planning are essential.

Frequently Asked Questions: Montana Capital Gains Tax

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