Idaho Per Diem Allowance

Calculate Idaho’s per diem rate based on GSA guidelines to simplify your business travels.

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From the dynamic tech scene in Boise to the world-class resort destinations of Sun Valley, Idaho's diverse economy and stunning landscapes make it a key location for business travel. For organizations with employees working in or traveling across Idaho, a clear understanding of per diem rates is vital for managing expenses efficiently.

Per diem, a daily allowance for lodging, meals, and incidental expenses, is the standard method for handling travel reimbursements. This guide provides a detailed look at the federal per diem rates for Idaho, clarifies important state laws, and shows how you can automate the entire process.

Idaho Per Diem Rate

Per diem rates for official travel in Idaho are set by the U.S. General Services Administration (GSA). These federal rates are mandatory for federal employees and serve as a common benchmark for private sector companies looking to create an IRS-compliant reimbursement policy.

For Fiscal Year 2025 (October 1, 2024, to September 30, 2025), key rates are broken down as follows:

Major Tourist and Business Destinations

Idaho's famous resort areas and its capital city have their own designated Non-Standard Area (NSA) rates with significant seasonal shifts.

  • Sun Valley / Ketchum (Blaine & Elmore Counties):
    • M&IE: $80 per day
    • Lodging: Highly seasonal, with a peak winter rate of $300 per night (Dec-Mar) and rates as low as $181 per night in the spring.
  • Boise (Ada County):
    • M&IE: $86 per day
    • Lodging: Seasonal, with a peak summer rate of $191 per night (June-Sep) and a rate of $167 per night for all other months.
  • Coeur d'Alene (Kootenai County):
    • M&IE: $74 per day
    • Lodging: Seasonal, with a peak summer rate of $217 per night (June-Aug) and a rate of $142 per night for all other months.

The first and last day of travel, the M&IE rate is $60.00 for Sun Valley, $64.50 for Boise, and $55.50 for Coeur d'Alene.

Standard CONUS Rate

For any county in Idaho not specifically listed by the GSA—such as Pocatello (Bannock County) or Idaho Falls (Bonneville County)—the standard CONUS rate applies. For FY 2025, this rate is $178 ($110 for lodging and $68 for M&IE).

Idaho Per Diem Rate Calculator

Find the exact per diem allowance for your business trip to Idaho with our easy-to-use calculator. Select the fiscal year, choose your destination, and input your travel dates. The tool will instantly provide the correct lodging and M&IE rates based on the official GSA schedule.

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Your per diem allowance

Dates
Lodging (L)
Meals & Incidentals (M&IE)
Total (L + M&IE)
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Lodging (L)
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Meals & Incidentals (M&IE)
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Total (L + M&IE)
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*For the first and last day of travel, M&lE spend is limited to 75% of its normal, daily allowance.

Idaho GSA Lodging Rates

Financial year
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Idaho Meals and Incidental Rates

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Daily M&IE Total
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Some Important Idaho Per Diem Laws

While private companies often use GSA rates as a best practice, it's important to understand that Idaho has a distinct travel policy for its own public employees.

  • The Role of Company Policy in Reimbursement: Idaho state law (Title 44, Labor) does not have a statute that requires private employers to reimburse employees for business travel expenses. This makes having a clear, detailed, and consistently enforced company travel policy essential for setting expectations and managing expenses fairly.
  • Idaho's State Employee Travel Policy: The State of Idaho has its own detailed travel policy for its public employees. This policy sets specific reimbursement rates and rules for lodging and meals that are separate from the GSA's combined M&IE per diem system. For example, it sets specific dollar amounts for breakfast, lunch, and dinner, and reimbursement eligibility is based on the time of departure and return.

Idaho Per Diem Laws vs Federal Law

It's crucial to distinguish between the federal GSA system and Idaho's state policy, as they apply to different groups and have different rules.

Primary Applicability

  • Federal Law (GSA): Mandatory for U.S. federal government employees traveling in Idaho. It is also the most common standard used by private businesses for an IRS-compliant accountable plan.
  • State of Idaho Policy: Applies only to Idaho state government employees and does not govern private sector businesses.

Rate Setting and Usage

  • Federal Law (GSA): Sets combined M&IE rates and lodging rates that often have significant seasonal variances in resort areas.
  • State of Idaho Policy: Sets its own specific, individual meal reimbursement amounts and separate lodging caps for its employees.

Legal Focus

  • Federal Law (GSA): Designed to create a uniform system for federal travel that reflects market-rate costs across the country.
  • State of Idaho Policy: Aims to manage the state's budget and create a standard, auditable reimbursement process for its public employees.

How Fyle Can Automate Per Diem and Expense Tracking

Managing travel expenses in a state with dramatic seasonal cost fluctuations like Idaho requires a system that is both intelligent and precise. Fyle’s expense management platform automates the entire process, giving you powerful control over your company’s travel spend.

Here’s how Fyle gives you command over your Idaho travel expenses:

  • A Smart Policy Engine For Complex Rates: You can build your company’s travel policy directly into Fyle, with specific rules for seasonal GSA rates in places like Sun Valley and Coeur d'Alene. Fyle automatically checks every lodging expense for compliance against the right rate for the right date.
  • Instant Expense Submission For Traveling Employees: Empower your team to report expenses the moment they happen. A quick photo of a receipt via text is all it takes to create a verifiable expense entry, eliminating lost receipts and month-end reporting stress.
  • Accurate Mileage Tracking For Every Trip: Whether driving to a client meeting in Boise or visiting a remote worksite, Fyle’s integrated Google Maps tracker provides a simple and IRS-compliant way for employees to log vehicle mileage, ensuring accuracy and fairness.
  • Real-Time Visibility Into Your Travel Budget: Fyle’s analytics dashboard provides finance leaders with a live, up-to-the-minute view of travel expenses as they are submitted. This allows you to track spending against budgets in real time and make informed financial decisions.
  • A Faster Monthly Close with Direct Integration: Fyle integrates seamlessly with leading accounting software like Sage, NetSuite, QuickBooks, and Xero. This means no more manual data entry for your finance team and a faster, more accurate monthly close.

With Fyle, you can manage your Idaho travel expenses with confidence, providing a modern, hassle-free experience for your employees while maintaining perfect financial control.

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The content on this page is for informational use. As legal standards and per diem rates are subject to change, users should verify current details with official GSA or government resources. This information does not serve as financial or legal counsel.