What is Montana's e-commerce sales tax in 2026?

Montana's 2026 e-commerce sales tax: out-of-state sellers collect once they cross Montana's economic nexus rules in Montana-destination revenue. Charge the 0.00% state rate plus any applicable local rate at the buyer's ship-to address.

Do I collect sales tax on every Montana order?

You collect Montana sales tax once you cross the economic nexus threshold (Montana's economic nexus rules). Below threshold, you don't need to collect unless you have physical nexus (office, employees, inventory in Montana).

What rate do I charge for Montana e-commerce sales?

0.00% state rate, plus any applicable local rate at the customer's ship-to address. Most e-commerce platforms (Shopify, WooCommerce) can apply destination rates automatically when you enable MT in tax settings.

Do I need to collect sales tax on shipping in Montana?

It depends on state-specific rules. Many states tax shipping when the product is taxable; some states exempt shipping if separately stated. Check Montana's specific policy or use a tax service that encodes the rule.

Montana E-commerce Sales Tax Nexus Guide — 2026

Updated 2026-04-27

E-commerce sales tax basics in Montana

For a direct-to-consumer store (Shopify, WooCommerce, BigCommerce, or custom) shipping to Montana buyers, the economic nexus trigger is the state's economic nexus rules (pending data verification) in MT-destination revenue. Crossing that bar obligates registration, collection, and periodic filing.

Once registered, charge 0.00% state tax on most tangible personal property. Digital products, subscriptions, and professional services have different treatment — see the Montana SaaS page if you sell software or digital goods.

Registration + collection checklist

Register with the Montana Department of Revenue for a sales tax permit.
Configure your cart platform to collect tax at the destination rate. Enable MT in your tax settings.
Charge the combined state + local rate at the customer's delivery address (most states source to ship-to, not ship-from).
File returns on the cadence your DOR assigns (monthly, quarterly, or annually).
Track your Montana-sourced revenue monthly so you know when you're approaching or below threshold for the next period.

Common mistakes e-commerce sellers make in Montana

Using origin-based rates (your HQ state's rate) instead of destination rates. Montana sources to the buyer's ship-to address — charge the MT rate, not your home state's.
Counting marketplace sales toward the Montana threshold. Amazon, Etsy, and eBay sales are usually excluded in Montana; check the specific rule before adding them to your nexus-tracking spreadsheet.
Waiting until year-end to register. If you cross the threshold mid-year, you must begin collecting on sales made after the threshold-crossing date — back-tax exposure grows until you register.
Forgetting to file zero returns once registered. Missing filings trigger penalties even when you owe no tax.

Montana nexus note

Montana has no general state or local sales tax. Sellers shipping to Montana customers do not need to register or collect. Exceptions: certain resort-area local option taxes and accommodations/rental car taxes apply to specific industries.

What to do next

Read the full Montana overview for thresholds, filing frequency, marketplace facilitator rules, and registration links. Use the nexus calculator to check whether you have crossed the threshold. For background on the post-Wayfair economic nexus framework, see the pillar guide.

Frequently asked questions

What is Montana's e-commerce sales tax in 2026?: Montana's 2026 e-commerce sales tax: out-of-state sellers collect once they cross Montana's economic nexus rules in Montana-destination revenue. Charge the 0.00% state rate plus any applicable local rate at the buyer's ship-to address.
Do I collect sales tax on every Montana order?: You collect Montana sales tax once you cross the economic nexus threshold (Montana's economic nexus rules). Below threshold, you don't need to collect unless you have physical nexus (office, employees, inventory in Montana).
What rate do I charge for Montana e-commerce sales?: 0.00% state rate, plus any applicable local rate at the customer's ship-to address. Most e-commerce platforms (Shopify, WooCommerce) can apply destination rates automatically when you enable MT in tax settings.
Do I need to collect sales tax on shipping in Montana?: It depends on state-specific rules. Many states tax shipping when the product is taxable; some states exempt shipping if separately stated. Check Montana's specific policy or use a tax service that encodes the rule.

Sources

date_retrieved: 2026-04-27