GSA · CONUS Per Diem

Louisville, Kentucky GSA Per Diem Rates (FY2026)

Effective date: July 1, 2026 Last updated: October 1, 2025
Lodging (per night)
$134
M&IE (per day)
$80
Maximum per diem
$214
Lodging + M&IE

Seasonal breakdown

GSA sets seasonal lodging rates for Louisville: the nightly lodging ceiling changes during the year (it is highest in peak travel months), while the M&IE rate stays constant.

Season Lodging M&IE Max per diem
Feb 1 – May 31 $155 $80 $235
Jun 1 – Aug 31 $134 $80 $214
Sep 1 – Sep 30 $164 $80 $244
Oct 1 – Oct 31 $164 $80 $244
Nov 1 – Jan 31 $120 $80 $200

Historical rate trend

Louisville rate history — Max per diem ($/day). Query any past effective date directly via the API.

Period Lodging M&IE Max per diem
FY2026 $164 $80 $244
FY2025 $164 $80 $244
FY2024 $149 $64 $213
FY2023 $139 $64 $203
FY2022 $139 $64 $203
FY2021 $139 $61 $200
FY2020 $138 $61 $199
FY2019 $136 $61 $197
FY2018 $138 $59 $197
FY2016 $127 $59 $186
FY2015 $121 $61 $182
FY2014 $115 $61 $176

How this rate is used

This GSA per diem rate sets the maximum reimbursable lodging and meals & incidental expenses (M&IE) for federal employees and government contractors on temporary duty (TDY) travel to Louisville, Kentucky. Travel and expense systems use it as the ceiling for voucher reimbursement; contractors use it for DCAA-compliant travel cost modeling on proposals and invoices.

Get this data from the API

The exact request that returns this page's data. Change the date parameter to query any historical effective date, or pull it straight into your ERP, payroll, or expense system.

curl -H "X-API-Key: YOUR_KEY" \
  "https://api.allowancesapi.com/v1/gsa/perdiem/state/US-KY?city=Louisville"
Sample response
{
  "effective_date": "2026-07-01",
  "results": [
    {
      "destination": "Louisville",
      "lodging": 134,
      "meals_incidental": 80,
      "season_begin": "06/01",
      "season_end": "08/31",
      "state": "US-KY"
    }
  ],
  "verification_url": "https://www.gsa.gov/travel/plan-book/per-diem-rates"
}

Source & methodology

Effective period
Fiscal Year 2026 (Oct 1, 2025 – Sep 30, 2026)
Last updated
October 1, 2025

Allowances API is not affiliated with, endorsed by, or sponsored by any U.S. Government agency. All rate data is sourced from official public rate tables and re-published in a normalized format.