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State & Local Tax (SALT) Deduction in Montana 2026

Calculate your state & local tax (salt) deduction tax savings in Montana. With Montana's 5.9% top state tax rate, your combined savings are higher.

Montana Tax Overview

State Income Tax
5.9%
flat
Sales Tax
None
avg combined: 0%
Property Tax Rate
0.74%
Median Income
$60,560

Flat 5.9% since 2024. No sales tax. Uses federal standard deduction. Capital gains credit for MT gains.

Montana Income Tax Brackets (Single)

5.9%
$0 +
Your bracket
$1,395
Est. Total Savings
$10,000
Max Deduction
Itemized
Deduction Type
27.9%
Combined Tax Rate

State & Local Tax (SALT) Deduction Savings Calculator for Montana

$
$

Federal Savings

$1,100

22% bracket

Montana State

$295

5.9% rate

Total Savings

$1,395

27.9% combined

At a 27.9% combined tax rate in Montana, every $1,000 in deductions saves you $279 in taxes.

Savings by Tax Bracket in Montana

10%
$795
12%
$895
22%
$1,395
24%
$1,495
32%
$1,895
35%
$2,045
37%
$2,145

Includes 5.9% Montana state tax on top of federal savings.

Eligibility Requirements

Taxpayers paying state/local income or sales tax

  • 1$10,000 cap
  • 2Choose income OR sales tax
  • 3Must itemize

Montana residents should verify that this deduction is also recognized on their state tax return for additional savings of up to 5.9%.

Common Mistakes to Avoid

  • !Exceeding $10,000 cap
  • !Not choosing optimal method
  • !Forgetting to claim the deduction on your Montana state return (missing up to 5.9% additional savings)

Montana Filing Tips

No sales tax saves on all purchases. Federal standard deduction applies. Use Montana's capital gains credit on MT-sourced gains. Compare to nearby no-income-tax states.

Required Tax Forms

Schedule A

File these forms with your federal tax return to claim the state & local tax (salt) deduction. Montana may require additional state-specific forms.

Other Tax Deductions in Montana

State Income Tax Deduction

State & Local

~$2,536
est. savings

Sales Tax Deduction

State & Local

~$1,902
est. savings

State Disability Insurance (SDI)

State & Local

~$507
est. savings

Local Income Tax Deduction

State & Local

~$761
est. savings

Mortgage Interest Deduction

Housing

~$4,439
est. savings

Property Tax Deduction

Housing

~$2,790
est. savings

Home Office Deduction

Housing

~$1,522
est. savings

Home Energy Tax Credit

Housing

~$1,800
est. savings

State & Local Tax (SALT) Deduction in Neighboring States

North Dakota

1.95% top rate (flat)

~$2,395
+1,000 vs Montana

South Dakota

No state income tax

~$2,200
+805 vs Montana

Wyoming

No state income tax

~$2,200
+805 vs Montana

Idaho

5.8% top rate (flat)

~$2,780
+1,385 vs Montana

Tax Calculators for Montana Cities

BillingsMissoulaGreat FallsBozeman

Calculate Your Full Tax Savings in Montana

Use our free tax calculators to optimize your entire tax return for Montana.

Income Tax CalculatorMontana Income TaxFull State & Local Tax (SALT) Deduction Guide

Frequently Asked Questions

How much can I save with the State & Local Tax (SALT) Deduction in Montana?

In Montana, the state & local tax (salt) deduction can save you an estimated $1,395 per year on a $5,000 deduction. This includes $1,100 in federal tax savings and $295 in Montana state tax savings at the 5.9% marginal rate. The national average savings is $2,200/year.

What is the Montana state income tax rate?

Montana has a flat income tax system with a top rate of 5.9%. Flat 5.9% since 2024. No sales tax. Uses federal standard deduction. Capital gains credit for MT gains.

Who qualifies for the State & Local Tax (SALT) Deduction in Montana?

Taxpayers paying state/local income or sales tax. The eligibility requirements are the same whether you live in Montana or another state, as this is a federal tax deduction. However, your total savings will vary based on Montana's 5.9% top state tax rate.

What tax forms do I need to claim the State & Local Tax (SALT) Deduction in Montana?

To claim the state & local tax (salt) deduction, you need to file Schedule A with your federal return. Montana residents should also check if the state allows this deduction on their state return for additional savings of up to 5.9%. Filing status affects your deduction limits and tax bracket.

Is the State & Local Tax (SALT) Deduction better in Montana than in states without income tax?

Yes, Montana residents benefit more because the state's 5.9% top income tax rate means the deduction reduces both your federal AND state tax liability. In states with no income tax (like Texas, Florida, or Nevada), this deduction only reduces federal taxes. Your combined rate of 27.9% means more savings per dollar deducted.

What is the standard deduction in Montana for 2026?

Montana's standard deduction is $14,600 for single filers and $29,200 for married filing jointly. No sales tax saves on all purchases. Federal standard deduction applies. Use Montana's capital gains credit on MT-sourced gains. Compare to nearby no-income-tax states.

Related Calculators

State Income Tax Deduction in Montana

Avg savings: $2,000/year

Sales Tax Deduction in Montana

Avg savings: $1,500/year

State Disability Insurance (SDI) in Montana

Avg savings: $400/year

Local Income Tax Deduction in Montana

Avg savings: $600/year

Mortgage Interest Deduction in Montana

Avg savings: $3,500/year

Property Tax Deduction in Montana

Avg savings: $2,200/year