St. Louis Per Diem Rates 2026 (FY2027)
The FY2027 GSA per diem for St. Louis, MO is $156 per night lodging + $86 M&IE ($242 per day), all year.
Effective Thu, Oct 1, 2026 to Thu, Sep 30, 2027. Covers St. Louis / St. Louis City / St. Charles.
$156
Lodging per night
all year
$86
M&IE per day
$64.50 on first/last day
$242
Total per day
$156 + $86
+34%
vs standard rate
standard $113 + $68 = $181
St. Louis lodging vs the standard rate
Standard rate: $113/night (cities without their own listing)
- All year$156
- Standard$113
Meals and incidentals in St. Louis: $86 a day
Breakfast
$22
Lunch
$23
Dinner
$36
Incidentals
$5
First/last day (75%)
$64.50
Example: Monday to Thursday in St. Louis
Mon, Apr 5, 2027 to Thu, Apr 8, 2027, 3 nights. Maximum allowance.
Lodging
$468
3 x $156
Meals and incidentals
$301
2 x $64.50 + 2 x $86 = $129 + $172
Total
$769
$468 + $301
Calculate your St. Louis trip
St. Louis, MO: 2 nights, 3 travel days
Maximum per diem for this trip
$527
Lodging
$312
Meals and incidentals (M&IE)
$215
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 | $156 | $64.50 | First day, 75% M&IE |
| Tue, Nov 10, 2026 | $156 | $86 | Full day, 100% M&IE |
| Wed, Nov 11, 2026 | none | $64.50 | Last day, 75% M&IE |
| Total | $312 | $215 |
Lodging is the maximum nightly rate for the season that covers each night, not a flat allowance for hotel receipts. M&IE here is $86 per day at St. Louis, MO: breakfast $22, lunch $23, dinner $36, incidentals $5; first and last day $64.50.
Turn this into a trip report
Log expenses and receipts during your St. Louis trip and export a PDF and Excel report. Tracking is free and your first trip report is free; after that $3.99 per trip or $19 a year for unlimited reports.
St. Louis per diem FAQ
What is the per diem rate in St. Louis for 2026?
The FY2027 GSA per diem for St. Louis, MO is $156 per night lodging + $86 M&IE ($242 per day), all year. Fiscal year 2027 runs from Oct 1, 2026 to Sep 30, 2027. The standard rate for places without their own listing is $113 lodging + $68 M&IE.
How is per diem calculated on the first and last day in St. Louis?
M&IE is paid at 75% on the first and last day of travel: $64.50 instead of $86 at the St. Louis rate. Full days in between get $86. Lodging is paid per night at the rate of that night's season.
Which counties does the St. Louis per diem rate cover?
The St. Louis rate applies to the area GSA lists as St. Louis / St. Louis City / St. Charles. Trips elsewhere in Missouri use the standard rate unless that place has its own listing.
Does the St. Louis per diem change by season?
No. Lodging is $156 per night all year in St. Louis, and M&IE is $86 per day.
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.