Illinois Per Diem Rates 2026 (GSA FY2027)
The standard FY2027 per diem in Illinois is $113 lodging + $68 M&IE ($181/day); 4 locations have higher rates, up to $238/night in Chicago.
Effective Thu, Oct 1, 2026 to Thu, Sep 30, 2027.
$181
Standard rate per day
$113 lodging + $68 M&IE
4
Listed higher-rate locations
in Illinois
$238
Highest lodging per night
Chicago, Apr 1–Jun 30
$92
Highest M&IE per day
Chicago
Highest lodging rate by Illinois city
Standard rate: $113/night (applies to every city not listed)
- Chicago$238
- East St. Louis / O'Fallon / Fairview Heights$156
- Oakbrook Terrace$123
- Bolingbrook / Romeoville / Lemont$119
All Illinois per diem rates (FY2027)
| City | County | Lodging per night | M&IE | First/last day (75%) |
|---|---|---|---|---|
| Bolingbrook / Romeoville / Lemont | Will | All year: $119 | $74 | $55.50 |
| Chicago | Cook / Lake | Oct 1–Nov 30: $232 Dec 1–Mar 31: $148 Apr 1–Jun 30: $238 Jul 1–Aug 31: $213 Sep 1–Sep 30: $232 | $92 | $69 |
| East St. Louis / O'Fallon / Fairview Heights | St. Clair | All year: $156 | $86 | $64.50 |
| Oakbrook Terrace | DuPage | All year: $123 | $80 | $60 |
Anywhere in Illinois not listed uses the standard rate: $113 lodging + $68 M&IE.
Meals and incidentals (M&IE) in Illinois
| M&IE per day | Breakfast | Lunch | Dinner | Incid. | First/last day |
|---|---|---|---|---|---|
| $68 | $16 | $19 | $28 | $5 | $51 |
| $74 | $18 | $20 | $31 | $5 | $55.50 |
| $80 | $20 | $22 | $33 | $5 | $60 |
| $86 | $22 | $23 | $36 | $5 | $64.50 |
| $92 | $23 | $26 | $38 | $5 | $69 |
Calculate your Illinois trip
Illinois (standard rate): 2 nights, 3 travel days
Maximum per diem for this trip
$396
Lodging
$226
Meals and incidentals (M&IE)
$170
First report free: log real expenses next to your per diem and export a PDF or Excel expense report.
Day-by-day breakdown
| Date | Lodging | M&IE | Note |
|---|---|---|---|
| Mon, Nov 9, 2026 | $113 | $51 | First day, 75% M&IE |
| Tue, Nov 10, 2026 | $113 | $68 | Full day, 100% M&IE |
| Wed, Nov 11, 2026 | none | $51 | Last day, 75% M&IE |
| Total | $226 | $170 |
Lodging is the maximum nightly rate for the season that covers each night, not a flat allowance for hotel receipts. M&IE here is $68 per day at Illinois (standard rate): breakfast $16, lunch $19, dinner $28, incidentals $5; first and last day $51.
Illinois per diem FAQ
What is the per diem rate in Illinois for 2026?
For fiscal year 2027 (Oct 1, 2026 to Sep 30, 2027) the standard GSA per diem in Illinois is $113 per night for lodging plus $68 per day for meals and incidentals (M&IE), $181 per day. 4 Illinois locations have a higher listed rate, up to $238 per night in Chicago.
Which Illinois city has the highest per diem?
Chicago (Cook / Lake) has the highest listed lodging rate in Illinois: $238 per night from Apr 1 to Jun 30, with $92 per day for M&IE.
How much is per diem for a 3-day trip to Chicago?
A trip with 2 nights and 3 travel days at Chicago, IL comes to at most $706: lodging 2 x $238 = $476 (the highest seasonal rate; other months are lower), plus M&IE of $92 for the middle day and $69 (75%) for the first and last day. Use the calculator above for exact dates.
Do private employers have to use GSA per diem rates?
No. GSA rates are written for federal travelers; many private employers use them as a benchmark, and your employer's policy decides what applies to you.
Data: GSA FY2027 per diem rates, effective Oct 1, 2026 (public domain; source gsa.gov). Last checked Sat, Oct 31, 2026. Easy Trip Expenses is not affiliated with the GSA. Results are the maximum allowance, not a guarantee of what your employer pays.