Independent site, not affiliated with GSA, the Department of State or the Department of Defense. Rates are copied from their public files; see sources.
Dynamic Traveller

Montana · FY2027 · October 1, 2026 to September 30, 2027

Montana per diem rates

4 Montana destinations have their own FY2027 per diem rates. The highest is Big Sky / West Yellowstone / Gardiner at up to $326 a night. Every county not listed below gets the standard CONUS rate of $113 lodging and $68 M&IE.

4
Destinations with own rate
$326
Highest peak lodging
$126
Lowest listed lodging
3
With seasonal rates
Standard rate, rest of state
$113/night
All unlisted counties
Meals & incidentals
$68/day
Standard M&IE
Maximum per diem, one full day$181

Not sure which applies? Type a city, county or ZIP code into the trip calculator.

All Montana destinations, FY2027

Lodging shows the range across seasons. Sort any column; values are GSA's FY2027 file.

DestinationLodgingM&IEMax/day
Big Sky / West Yellowstone / GardinerGallatin / Park
$169–$326
$80$406
Kalispell / WhitefishFlathead
$126–$244
$80$324
MissoulaMissoula
$135–$199
$74$273
HelenaLewis and Clark
$140
$74$214

Highest maximum daily rate

Montana: peak lodging + M&IE per day, FY2027

Top 4 destinations; lodging in blue, M&IE in terracotta.

Lodging (peak month)M&IE
Big SkyLodging $326M&IE $80$406KalispellLodging $244M&IE $80$324MissoulaLodging $199M&IE $74$273HelenaLodging $140M&IE $74$214
Big SkyLodging $326M&IE $80$406KalispellLodging $244M&IE $80$324MissoulaLodging $199M&IE $74$273HelenaLodging $140M&IE $74$214
Source: GSA FY2027 per diem file.

Destinations listed in earlier years

These were non-standard areas in at least one GSA file since FY2015 but are not listed under that name in FY2027.

DestinationListedFY2027
Big Sky / West YellowstoneGallatinFY2015–FY2019Counties now in Big Sky / West Yellowstone / Gardiner
ButteSilver BowFY2015–FY2018Standard rate
Glendive / SidneyDawson / RichlandFY2015–FY2018Standard rate
Missoula / Polson / KalispellMissoula / Lake / FlatheadFY2015–FY2019Counties now in Kalispell / Whitefish, Missoula

Over time

Fiscal yearNon-standard areasStandard rate
FY20274$113 / $68
FY20264$110 / $68
FY20254$110 / $68
FY20244$107 / $59
FY20234$98 / $59
FY20224$96 / $59
FY20214$96 / $55
FY20204$96 / $55
FY20193$94 / $55
FY20185$93 / $51
FY20175$91 / $51
FY20165$89 / $51
FY20155$83 / $46

Questions

What is the per diem rate in Montana if my city is not listed?
The standard CONUS rate: $113 a night for lodging and $68 a day for M&IE in FY2027. GSA's file says the standard rate "applies to all counties not specifically listed" and that "cities not listed may be located in a listed county", so check the county first.
When do the FY2028 Montana rates start?
Federal per diem rates follow the federal fiscal year: FY2028 rates take effect on October 1, 2027. GSA usually publishes them in August or September.

Source: U.S. General Services Administration (GSA), per diem rates and per diem files. Not affiliated with GSA. All sources