Know your rights · Montana

Is door-to-door soliciting legal in Montana?

Short answer: yes - courts won't let cities ban knocking outright. But “legal” is doing less work than solicitors would like you to think. Montana law makes pressure sales cancelable, local rules on permits and hours vary, and once you say “leave,” the law is on your side. Here's the whole picture, with citations.

The quick version

Soliciting is legal but regulated - mostly by your city, not the state.
Anything you signed at your door can usually be canceled within 3 business days (state and/or federal law).
A solicitor who stays after you say “leave” is trespassing - anywhere in Montana.
What a posted sign means varies by city: weak everywhere - no Montana city gives a posted sign its own force, so the revocable-privilege rule in § 45-6-203 is what you actually have.

What Montana state law gives you

Mont. Code § 30-14-504

A cooling-off period aimed at high-pressure tactics

The buyer - or anyone else on the hook for part of the purchase price - may cancel a personal solicitation sale until midnight of the third business day after signing. Cancellation happens when written notice is given to the seller.

The statute’s own purpose clause says the point is to give people subjected to high-pressure personal solicitation sales tactics a cooling-off period. That is the legislature describing the doorstep close for what it is.

Mont. Code § 30-14-504

For a telephone-solicited sale, you can cancel before you ever sign

Where the personal solicitation sale was made by telephone, Montana lets the buyer cancel at any time before signing the agreement or offer to purchase - a wider window than the three days that follow it. Section 30-14-505 governs the notice of the right to cancel that the seller has to give you.

Mont. Code § 45-6-203

Your permission is revocable at any moment

Montana frames trespass around privilege: a person may be on your land either by your explicit permission or because you did not post notice denying entry - and the privilege may be revoked at any time by personal communication of notice by the landowner.

Criminal trespass to property carries a fine of up to $500, up to six months in county jail, or both. The revocation framing is the practical one: you do not have to prove the first knock was wrong, only that you withdrew permission.

Your city sets the door-knocking rules

Montana's largest cities regulate solicitors in different ways - a good preview of how much this varies town to town. If yours isn't here, search "[your city] solicitor permit."

Business license only - the solicitation article is about panhandling

Billings

Worth being precise about, because it is widely misreported: Billings does have a solicitation article at § 18-1001, but it is Aggressive Solicitation - the panhandling ordinance, adopted as Ordinance 04-5265. It is not a door-to-door sales rule, and it does not give your sign force.

Door-to-door sellers in Billings need an ordinary city business license through the Finance Division. There is no residential no-soliciting ordinance and no do-not-knock registry.

If a sign-vendor site tells you Billings makes ignoring your sign an offense, it has confused the panhandling article for a sales one.

General business licensing; no dedicated registry

Missoula & Bozeman

Montana’s other large cities likewise handle door-to-door selling through general business licensing rather than a standalone solicitation ordinance, and none runs a residential do-not-knock registry. Statewide, the enforceable tool is § 45-6-203 and the words you say at the door.

What a “No Soliciting” sign does - and where it falls short

Post one. Where the local code gives it legal force it turns some canvassers away, and everywhere it establishes that a knock wasn't welcome. But the patchwork above exposes the sign's two structural weaknesses: the rules protecting you differ block by block, and a sign creates no record of who ignored it. Enforcement is almost always complaint-driven - and a complaint is only as strong as your ability to say who knocked, and when.

Where NoKnock fits

Make the sign checkable - and the ignoring of it a record

A do-not-knock list a company can actually be held to is the stronger model. NoKnock is that idea for any address in the country - you register free, put a QR decal at your door, and canvassing organizations that subscribe get a “Do Not Knock” answer for your home before anyone walks up. If someone knocks anyway, logging it takes seconds, so the fourth violation reads as a pattern, not four bad afternoons.

Honest caveat: the registry is young, and not every canvasser checks it yet. The decal works on day one regardless - and it's the only option on this page that turns an ignored “no” into a timestamped record.

Religious and political canvassers play by different rules

In Watchtower v. Village of Stratton (2002), the U.S. Supreme Court held that a town can't require a permit for religious, political, or other noncommercial door-to-door canvassing. That's why city permit schemes carve those groups out, and why a “permit, please” challenge only works on commercial sellers.

What survives for noncommercial visitors: the trespass baseline (they must leave when asked) and, in some cities, posted-sign rules that apply to everyone. If you want maximum legal coverage from a sign alone, “No Trespassing” generally sweeps broader than “No Soliciting.”

Common questions

Is door-to-door soliciting legal in Montana?

Yes, and Montana cities regulate it lightly - door-to-door sellers generally need only an ordinary city business license, and no Montana city runs a do-not-knock registry. Billings' solicitation article (§ 18-1001) is an aggressive-solicitation ordinance aimed at panhandling, not a door-to-door sales rule. State law gives you three business days to cancel a personal solicitation sale.

Is ignoring a No Soliciting sign illegal in Montana?

Not by city ordinance - no Montana city gives a posted no-soliciting sign its own penalty. What works statewide is Mont. Code § 45-6-203, which treats being on your land as a privilege that may be revoked at any time by personal communication from you. Once revoked, staying is criminal trespass, carrying up to $500, six months, or both.

Can I cancel a contract signed with a door-to-door salesperson in Montana?

Yes. Mont. Code § 30-14-504 lets the buyer - or anyone else obligated for part of the price - cancel until midnight of the third business day after signing, by written notice to the seller. If the sale was solicited by telephone, you may cancel at any time before you sign.

Do I have to keep listening once I say no in Montana?

No. Montana does not have a city ordinance making the word "no" its own offense, but Mont. Code § 45-6-203 gets you to the same place: their privilege to be on your land is revocable at any time by personal communication. Say "leave my property" and staying becomes criminal trespass.

Sources

This page is general information, not legal advice, and state statutes and city ordinances change - always verify against the current code before relying on a specific provision. Last reviewed August 2026.

The law backs you up. Make it easy to invoke.

Register your address, put the decal by the door, and every rule on this page gets a record to point at. Free, under a minute.

Want the practical playbook too? How to stop door-to-door salesmen