The largest metro
Montana’s largest metro area is Billings, MT (U.S. Census Bureau, Vintage 2025 population estimates, read October 4, 2026). Its most populous county in Montana, Yellowstone County, has no GSA rate of its own, so GSA’s standard rate applies there: lodging $113 a night, M&IE $68 a day (FY2027). Source: GSA per diem rates, FY2027, from GSA’s per diem API (retrieved September 21, 2026).
Rates across Montana
Anywhere in Montana without a rate of its own, GSA’s FY2027 standard rate applies: lodging $113 a night, M&IE $68 a day. 4 areas have their own rates:
| Area | Counties GSA lists | Lodging a night | M&IE a day |
|---|---|---|---|
| Big Sky / West Yellowstone/Gardiner, MT | Gallatin/Park | $169 to $326 by month | $80 |
| Helena, MT | Lewis and Clark | $140 | $74 |
| Kalispell/Whitefish, MT | Flathead | $126 to $244 by month | $80 |
| Missoula, MT | Missoula | $135 to $199 by month | $74 |
Source: GSA per diem rates, FY2027, from GSA’s per diem API (retrieved September 21, 2026).
How a stipend relates to these rates
The U.S. General Services Administration says: “We establish the per diem rates that federal agencies use to reimburse their employees for lodging and meals and incidental expenses incurred while on official travel within the continental United States.” Source: GSA: Per diem rates, read September 30, 2026.
The IRS says: “If your allowance is less than or equal to the federal rate, the allowance won’t be included in box 1 of your Form W-2.” Source: IRS Publication 463 (2025), read October 2, 2026.
The IRS says: “Generally, your tax home is your regular place of business or post of duty, regardless of where you maintain your family home. It includes the entire city or general area in which your business or work is located.” Source: IRS Publication 463 (2025), read October 2, 2026.
More on Montana: licensing in Montana, Montana pay and Montana contracts.
Frequently asked questions
What is the GSA lodging rate in Montana?
GSA’s FY2027 standard lodging rate in Montana is $113 a night. The 4 areas with their own rates run from $126 to $326 a night, depending on the area and the month. Source: GSA per diem rates, FY2027, from GSA’s per diem API (retrieved September 21, 2026).
What is the M&IE rate in Montana?
GSA’s FY2027 standard rate for meals and incidental expenses (M&IE) in Montana is $68 a day; the 4 areas with their own rates run from $74 to $80 a day. Source: GSA per diem rates, FY2027, from GSA’s per diem API (retrieved September 21, 2026).
Is a stipend at or below the federal rate reported as wages?
The IRS says: “If your allowance is less than or equal to the federal rate, the allowance won’t be included in box 1 of your Form W-2.” Source: IRS Publication 463 (2025), read October 2, 2026.
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