GSA Per Diem Calculator

Introduction

This Gsa Per Diem is designed for professionals who need accurate and reliable calculations in their daily work. Whether you are planning finances, managing projects, or making critical business decisions, having the right numbers at your fingertips is essential. This tool provides instant results based on proven formulas, saving you time and reducing the risk of manual calculation errors. By using this calculator, you can focus on analysis and decision-making rather than spending time on complex computations. The interface is straightforward and designed for practical use, ensuring that you get the information you need quickly and efficiently.

What This Calculator Does

This GSA Per Diem Calculator determines federal travel reimbursement rates using official 2026 General Services Administration (GSA) per diem rates for domestic travel. It calculates lodging (hotel) reimbursement maximums and Meals and Incidental Expenses (M&IE) rates by location, including the first and last day of travel 75% M&IE rule. The calculator covers all 300+ CONUS (Continental U.S.) locations plus standard rates for locations without specific rates. It helps federal employees, military personnel on TDY, and government contractors estimate travel reimbursements, plan trip budgets, and understand federal travel policies under the Federal Travel Regulation (FTR).

Step-by-Step Example

Real-World Use Cases

Common Mistakes to Avoid

• Confusing per diem with actual expense reimbursement. Per diem is a flat rate regardless of actual spending. Spending less than M&IE does not increase lodging reimbursement and vice versa.

• Not applying the first/last day 75% rule correctly. Some travelers incorrectly claim full M&IE on travel days or forget to reduce last day M&IE when returning home.

• Assuming all locations use standard CONUS rates. High-cost areas like San Francisco ($316 lodging), NYC ($295), and Boston ($264) have significantly higher rates than standard CONUS ($107).

• Forgetting that provided meals reduce M&IE. Conference meals, per diem meal reductions, and government-furnished meals must be deducted from claimed M&IE.

• Not understanding lodging taxes are separate. Hotel taxes are reimbursable in addition to the maximum lodging rate, but resort fees, parking, and internet are not (unless authorized in orders).

Frequently Asked Questions