Montana taproom rules for breweries

The sample room, in plain numbers

A Montana domestic small brewery may give away or sell up to 48 ounces of samples per customer per day, served between 10 AM and 8 PM, in a designated sample room.

That is the whole taproom deal in one sentence. It is not a retail license: it is a permission attached to the brewery license, conditioned on volume and hours.

The brewery that fits the band, 200 gallons to 60,000 barrels a year, keeps this permission until production crosses the line. Below 200 gallons, a micro brewery may serve free samples only, and nothing may be charged.

48 ouncesA Montana domestic small brewery may give away or sell up to 48 ounces in samples to customers from 10:00 AM to 8:00 PM at its designated sample room. — Montana Department of Revenue, retrieved 2026-09-29

Take-home beer runs on its own clock

Off-premises sales are separate from the sample room, with different hours. A domestic small brewery may sell beer for customers to take home from 8 AM to 2 AM.

Note the shape of the two windows. Take-home sales start earlier and end much later than the sample room's 10-to-8. A growler sold at 9 PM to go is inside the rules; the same beer drunk at a table at 9 PM is not, without a retail license.

Plan the room around the mismatch. Counter service for take-home can run after the tables stop, if the layout and staffing allow it.

8 AM to 2 AMA Montana domestic small brewery may sell beer for customers to take home from 8:00 AM to 2:00 AM. — Montana Department of Revenue, retrieved 2026-09-29

The room itself has physical rules

The department cares where the beer is drunk, not just how much. Serving happens in the designated areas, in the appropriate amounts.

A deck or patio may be included if it is enclosed and only accessible from the on-premises consumption area. An open lawn reached by wandering out a back door does not qualify.

The manufacturing area is the opposite boundary: unauthorized people must be kept out of it. A taproom that lets customers watch the brew day is fine on a tour; a taproom where the crowd drifts past the grain store is not. The detailed requirements sit in ARM 42.12.149 and ARM 42.13.601.

A Montana brewery needs a designated sample room or an approved on-premises retail license stacked at the premises to sell direct, and must keep unauthorized people from the manufacturing area. — Montana Department of Revenue, retrieved 2026-09-29

The premises around the taproom

The building has to be recognizable as a brewery and physically separated from any other alcoholic beverage business. That rule reaches the taproom's identity, not just the tanks.

Two rules follow that catch modern formats. A brewery may not operate under a concession agreement. And it may not let customers buy alcoholic beverages through automatic vending machines or self-service devices, which closes the self-serve beer wall idea.

A taproom inside a shared market needs careful design against these rules. The separation is physical, and the department reads it that way.

The premises must be recognizable as a brewery, physically separated from any other alcoholic beverage business, and may not run under a concession agreement. — Montana Department of Revenue, retrieved 2026-09-29

The stacked retail license, and what it buys

The alternative to the sample room limits is an approved on-premises retail license stacked at the brewery's premises. Stacked means co-located: a retail license sitting on top of the brewery license at the same address.

That license is a different tier's permission with a different tier's fee, covered by the same fee statute that prices the brewer's $500 license. What it buys is retail hours and retail serving rules instead of the 48-ounce and 10-to-8 conditions.

What it does not do is remove the brewery rules. The manufacturing side, the labels and the barrel tax stay exactly as they were, stacked or not. The tier structure behind the choice is on the three-tier page.

A Montana brewery may sell beer directly to the public through an approved on-premises retail license stacked or co-located at the brewery's premises, as an alternative to a designated sample room. — Montana Department of Revenue, retrieved 2026-09-29

The label rule that follows the taproom glass

One label rule reaches inside the taproom itself. A domestic brewery's beer from 8.75 percent alcohol up to under 14 percent must be approved by the department even if it is only served and sold in the sample room.

That means a barleywine on the tap list is a filing, not just a recipe. The rest of the label rules, the federal certificate and the state registration for beer shipped into Montana, run alongside it.

The details, including the free federal application, are on the label page. Check it before the first high-alcohol release, not after.

8.75% ABVBeer from 8.75 percent ABV up to under 14 percent produced by a domestic brewery must be approved by the department even if only served in the sample room. — Montana Department of Revenue, retrieved 2026-09-29

Serving the rules, not testing them

The taproom is the part of the brewery the public touches, which makes it the part the department hears about. Keep the operating rules visible to staff, not in a drawer.

Ounce counting is the practical one. The 48-ounce limit is per customer per day, so a table that orders four rounds is your problem to track, and flights are where the counting happens.

When a customer buys a growler at the counter to take home at 9 PM, the take-home clock governs. When they ask for one more pint at the table at 9 PM, the answer is no, unless you hold a retail license. The yearly renewals page covers the license dates that keep the room open.

June 30Montana brewery licenses must be renewed every year by June 30 to keep operating, including taproom and sample room activity. — Montana Department of Revenue, retrieved 2026-09-29

Questions