About Per Diem Tool

Per Diem Tool is an unofficial lookup for public Continental U.S. (CONUS) per-diem rates published by the U.S. General Services Administration, plus IRS standard mileage rates used in trip estimates. We organize the data so travelers can search by city, county, or ZIP and see lodging and M&IE clearly.

Published by BlackStack Systems — a veteran-owned small operation that builds data tools. This site’s mission is to make GSA and IRS travel-rate data usable for everyday trip planning.

This site is not affiliated with GSA, IRS, or any government agency.

Always confirm figures on gsa.gov/perdiem and the IRS mileage pages before filing a voucher or tax return.

Domain

perdiemtool.com

Publisher / byline

BlackStack Systems

Contact email

contact@perdiemtool.com