Montana Sales Tax Rates: 2026 County Guide
Complete sales tax breakdown for all 54 counties in Montana. Select a county to see city-level rates and How-To guides.
Montana Base State Tax Rate
| Jurisdiction | Rate |
|---|---|
| Montana State Sales Tax | 0.000% |
| Total Combined Rate | No Sales Tax |
Montana Sales Tax Context for Buyers and Sellers
Understanding the tax landscape in Montana starts with its signature 0.000% statewide general sales tax rate. Read on to explore Montana's tax-free status and general business guidelines.
Because Montana is a zero-sales-tax state, the combined rate is 0.000%. Local jurisdictions do not impose additional county or municipal sales taxes.
Businesses selling to the 1,084,225 residents here must be aware of the compliance scale. A small oversight in rate configuration can result in significant under-collection or over-collection over a fiscal year. Sellers should confirm state corporate or franchise tax rules, as the zero rate only applies to retail sales tax.
Business operations in Montana are free from retail sales tax registration duties. Shippers should instead monitor other local corporate tax regulations. Sellers should confirm their regulatory status and business classifications directly with Montana state officials.
Rate data last checked in the database: March 2026
Economic Nexus Threshold
Avg Local Tax Rate
State Nexus Checker
Use current state threshold data before you register or start collecting.
Nexus estimate
State Exemption Finder
Guide buyers and sellers toward the right official exemption paperwork path.
State Product Taxability Checker
Version 1 covers the tax categories already modeled in the current database.
State-aware estimate
Verify with official sourceAll 54 Montana Counties
Beaverhead
Big Horn
Blaine
Broadwater
Carbon
Carter
Cascade
Chouteau
Custer
Daniels
Dawson
Fallon
Fergus
Flathead
Gallatin
Garfield
Glacier
Golden Valley
Granite
Hill
Jefferson
Judith Basin
Lake
Lewis and Clark
Liberty
Lincoln
Madison
McCone
Meagher
Mineral
Missoula
Musselshell
Park
Petroleum
Phillips
Pondera
Powder River
Powell
Prairie
Ravalli
Richland
Roosevelt
Rosebud
Sanders
Sheridan
Silver Bow
Stillwater
Sweet Grass
Teton
Toole
Treasure
Valley
Wibaux
Yellowstone
Largest Cities in Montana
These major city pages usually attract the strongest commercial intent and create more downstream tool usage.
Highest Tax Cities in Montana
Comparison links like these help users move from broad state intent into more specific local rate pages.
Sales Tax Calculator
Using the current combined rate for Montana.
Rate applied
0.000%
Selected location
Sales tax
$0.00
Taxable base:
Total due
$0.00
Effective rate:
Rounded to the nearest cent. Tax treatment of shipping and discounts can vary by state.
Sitewide Helper
Sales Tax Calculator & Compliance Helper
One compact utility block for tax calculation, reverse calculation, ZIP lookup, nexus checks, exemption guidance, and product taxability.
Advanced Sales Tax Calculator
Estimate tax with shipping, discounts, and exempt subtotal support.
Rate applied
0.000%
Selected location
Sales tax
$0.00
Taxable base:
Total due
$0.00
Effective rate:
Rounded to the nearest cent. Tax treatment of shipping and discounts can vary by state.
Reverse Sales Tax Calculator
Work backward from the total paid to estimate the pre-tax price and tax amount.
Pre-tax price
$0.00
Tax amount
$0.00
ZIP / City Sales Tax Lookup
Search by ZIP code, city, county, or state to find current combined rates and local breakdowns.
Economic Nexus Checker
Compare your state-specific sales activity against current nexus thresholds using existing site data.
Nexus estimate
Should I Collect Sales Tax?
A fast intent-matching decision tree for businesses, marketplace sellers, and remote sellers.
Do you sell taxable goods or taxable services?
Do you sell into states outside your home state?
Have you crossed a nexus threshold in a destination state?
Do marketplaces handle most of your sales?
Do you have physical presence in the state?
Decision
Exemption Certificate Finder
Point buyers and sellers toward the right official portal and documentation checklist.
Product Taxability Checker
Version 1 uses the categories already modeled in the current database and always links back to official verification.
State-aware estimate
Verify with official source