Why GSA Lodging Rates Change by Month
PerDiemWise Content Team3 min read

Photo by Pavel Danilyuk on Pexels source
In resort and convention cities, GSA lodging caps move with the season — higher when hotels are expensive, lower in the off-season. Use the rate for the month you actually travel.
Examples of seasonal swings
- San Francisco's FY2026 lodging cap runs $259 most of the year, rising to $272 in the autumn.
- Ski and beach towns can swing by hundreds of dollars between peak and off-peak months.
M&IE doesn't change by month
Only lodging is seasonal; the M&IE rate for a city is fixed all year. PerDiemWise reads each night's month and applies the correct lodging cap automatically, so a trip that straddles a season change is totalled correctly.
Calculate it now
Use the free GSA per diem and IRS mileage calculators.