Do contractors charge sales tax in Montana?

Montana imposes no state sales tax, so there is no state sales tax to add to a contractor's invoice. Source: Montana imposes no general sales tax (limited resort and local option taxes exist in a few communities).

WhatMontana
Contractor’s default roleNo state sales tax

Source

Montana imposes no general sales tax (limited resort and local option taxes exist in a few communities). — last checked 2026-09-15.

This is a summary of a state’s published guidance, not tax or legal advice. Rates and rules change, local jurisdictions add their own, and the treatment of a specific job depends on the contract and the work. Check the citation and speak to a CPA or a state tax adviser before relying on it.

How Seayora uses this rule

Seayora resolves this rule on every invoice a contractor raises — per line, from the job site’s own address — and prints the rate, the jurisdiction and this citation on the document itself, so the estimate a customer accepts is the invoice they are billed. Where the rule is more nuanced than a single answer, Seayora refuses to guess a total rather than quoting a confident wrong one.

Compare this rule in every state

More Montana rules

The same question in other states

Related