GSA per diem rates
Illinois per diem rates, FY2027
GSA lists 4 destinations in Illinois, with lodging from $119 to $238 a night and M&IE from $74 to $92 a day for FY2027. Anywhere else in Illinois gets the standard rate: $113 lodging and $68 M&IE.
Illinois destinations
| Destination | County or area | Lodging a night, by season | M&IE a day | First and last day (75%) |
|---|---|---|---|---|
| Bolingbrook / Romeoville / Lemont | Will | $119 all year | $74 | $55.50 |
| Chicago | Cook / Lake |
| $92 | $69.00 |
| East St. Louis / O'Fallon / Fairview Heights | St. Clair | $156 all year | $86 | $64.50 |
| Oakbrook Terrace | DuPage | $123 all year | $80 | $60.00 |
Rates: GSA FY2027 per diem rates (rates file), effective Oct 1, 2026 to Sep 30, 2027, checked Oct 22, 2026. Lodging is the most GSA reimburses a federal traveler for a night, excluding taxes; it isn't a market rate.
Reading the table
How Illinois rates work
- Not listed? GSA sets most rates by county. A town in a listed county takes that county's rate; anywhere else in Illinois gets the standard rate of $113 lodging and $68 M&IE.
- Seasons: 1 of these destinations have a lodging rate that changes during the year. A trip across a season change has nights at each rate. M&IE stays the same all year.
- First and last days: a federal traveler gets 75% of the M&IE rate on the first and last day of a trip, shown in the last column.
- Lodging rates exclude taxes. M&IE includes taxes and tips on meals.
Source: GSA per diem FAQs, checked Oct 22, 2026.
M&IE by meal in Illinois
| M&IE a day | Breakfast | Lunch | Dinner | Incidentals | First and last day |
|---|---|---|---|---|---|
| $74 | $18 | $20 | $31 | $5 | $55.50 |
| $80 | $20 | $22 | $33 | $5 | $60.00 |
| $86 | $22 | $23 | $36 | $5 | $64.50 |
| $92 | $23 | $26 | $38 | $5 | $69.00 |
Source: GSA M&IE breakdowns, checked Oct 22, 2026. A federal traveler deducts a meal provided by the government or included in a registration fee.
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Use these rates
The trip cost estimator works out one trip's per diem night by night. To set nightly hotel caps in Illinois, use the hotel rate benchmarks. For the standard rate, the 75% rule and meal breakdowns, see GSA per diem rates.
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