1. What is a Per Diem Rates Calculator?

Definition: This calculator computes the total per diem amount based on the daily rate and number of days.

Purpose: It helps business travelers, employers, and accountants determine daily expense allowances for 2025.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P \) — Total per diem amount ($)
• \( R \) — Daily rate ($/day)
• \( D \) — Number of days (days)

Explanation: The daily rate is multiplied by the number of days to calculate the total per diem amount.

3. Importance of Per Diem Calculation

Details: Accurate per diem calculations ensure proper expense reimbursement, tax compliance, and budget planning for business travel.

4. Using the Calculator

Tips: Enter the daily rate in dollars and the number of days. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What are standard per diem rates for 2025?
A: Standard rates vary by location. Check GSA.gov for official 2025 rates when available.

Q2: Are per diem payments taxable?
A: Generally no, if they don't exceed federal rates and are properly accounted for.

Q3: Can I use this for international travel?
A: Yes, but you'll need to input the appropriate daily rate for the destination country.

Q4: What if my actual expenses are less than per diem?
A: Per diem allows you to keep the difference without tax implications (within limits).

Q5: How does partial day travel work?
A: Most companies use 75% of daily rate for partial days (first/last day of travel).