Montana Sales Tax Permit Cost (2026)
Montana has no state sales tax, so there's no sales-tax permit to register for. Montana has no state sales tax, so there's no permit (a few resort towns levy limited local taxes).
Verified July 2026 from official sources. How we verify fees.
What it costs in Montana
- Registration fee: No permit (no state sales tax)
- Also needed: an EIN (free from the IRS) and usually a registered business
How it works
Because Montana doesn't levy a state sales tax, businesses here don't collect it and don't need a seller's permit. If you sell into other states, you may still need permits there once you cross their economic-nexus thresholds.
How Montana compares nationally
Montana is among the least expensive states in the country for a sales-tax permit — it charges little or nothing where most states do.
Cheapest states
Most expensive states
- Connecticut — $100 (one-time)
- Wyoming — $60 (one-time)
- Washington — $50 business-license fee
Frequently asked questions
How much is a sales tax permit in Montana?
Montana has no state sales tax, so there's no permit to buy.
Do I need a sales tax permit in Montana?
No — with no state sales tax, Montana doesn't require a seller's permit.
Does a Montana sales tax permit expire?
Not applicable — there's no permit in Montana.