Per Diem Rates by Location, How Taxes Work, and Pros and Cons

What Is Per Diem?

“Per diem,” meaning “per day” in Latin,  refers to a fixed daily allowance employers provide to cover expenses incurred during business travel.

Per diem rates are set each year by the General Services Administration (GSA) for destinations within the Continental U.S. Non-foreign rates (for Alaska, Hawaii, Puerto Rico, and Guam) are set by the Department of Defense and foreign rates (anywhere outside the U.S. and its territories) are established by the State Department.

If you travel for business or have employees who travel, it is important to understand per diem. This alternative to reimbursement based on detailed expense records requires less elaborate bookkeeping. 

Below, we answer questions about per diem, how it works, and what it involves tax-wise.

Key Takeaways

• Per diem is a fixed dollar amount established to reimburse employees for various types of charges.
• Per diem rates can be tied to daily lodging, meals, miles driven, and incidental expenses.
• Per diem rates for meals and lodging are based on geographical location.
• The IRS sets per diem mileage rates; for 2024, the mileage rate is $0.67 cents per mile, and for 2025, it’s $0.70 per mile.
• Companies may prefer per diem for its simplicity and equity, though it often results in a company overcompensating or undercompensating employees.

What Does Per Diem Cover?

The GSA breaks down per diem rates into two categories: meals/incidental expense (M&IE) and lodging.

Meals and Incidental Expenses

The meals and incidental expenses (M&IE) category covers all meals (breakfast, lunch, and dinner), room service, laundry, dry cleaning, pressing of clothing, and fees and tips given to people who provide services, such as food servers and luggage carriers.

Major cities like New York City and Boston typically have the maximum per diem tier of $92 per day. Smaller cities that host substantial business-related travel have per diems that fall between lower tiers ($68 to $80). For example, Tampa and Charlotte have per diems of $80.

These daily expenses are segmented into breakfast, lunch, dinner, and incidental expenses.

Lodging Expenses

The lodging category covers establishments that offer overnight stays, such as hotels, motels, inns, resorts, and apartments. Lodging per diem rates also vary by location and time of year. A separate per diem rate is set for both M&IE and lodging for each location. 

For example, for the 2025 fiscal year, the per diem rate for lodging in Atlanta is $197 from Jan.-March and $182 for April-Sept. For M&IE, it’s $86.

For Chicago, lodging rates range between $142 and $233, depending on the month, and the M&IE per diem is $92.

Important

The GSA stipulates different rates for the first and last day of travel. Though the full per diem for meals for a Tier 1 location is $68, the starting and ending daily rate is $51. For a Tier 5 location, only $69 can be claimed (as opposed to a maximum of $92).

Per Diem Rates by Location

Per diem rates are based on an area’s cost of living. Such rates in large cities, such as Chicago, New York, and Los Angeles are higher than in non-metropolitan areas because goods and services in larger cities are generally more expensive. Lodging rates can also vary by month in response to supply and demand. 

The highest lodging per diem in New York City, for example, coincides with autumn, the season that attracts the most tourists and business travelers. Per diem rates are updated annually and become effective October 1, the first day of the federal government’s fiscal year. 

Finding Rates for Each Location

Ask your employer’s human resources or accounting department for specific rates, or look up the information by visiting the GSA website. You can search by city, state, or zip code for the current fiscal year (October 1 through September 30). 

If you want to view the next fiscal year or any other year since 1997, search by state and select the appropriate year from the drop-down menu. Click “Find per diem rates” to view the results, which are broken down by primary destination, county, maximum lodging by month, and meals and incidental expenses (M&IE).

If you search for an area that isn’t covered by GSA tables (e.g., Hawaii, which is not part of the Continental U.S.), two links will appear that will direct you to the appropriate website: the Department of Defense for non-foreign travel (Alaska, Hawaii, Puerto Rico, and Guam) and the State Department for all foreign destinations.

Employer Use of GSA Rates

While most businesses use the per diem rates set by the GSA, they can use alternative reimbursement methods. For example, employers can use the IRS high-low method, which establishes one flat rate per diem for high-cost locations (e.g., New York, Chicago, and the District of Columbia), and one flat rate for all other locations. 

Employees are often expected to use the per diem rate to cover their expenses and to keep receipts for any expenses that exceed the per diem rate. In some cases, employees may be required to return any excess funds to the employer.

Employers use GSA rates to help budget for travel. By understanding where certain employees may be traveling in the upcoming year, the company can forecast their daily expenditures once the per diem rates are set early in the year.

Per Diem for Business Travel (Mileage)

Per diem mileage rates are those established by the IRS that taxpayers can use to calculate deductible travel expenses for tax purposes. These rates determine the standard mileage deduction that taxpayers can take for business-related travel using their personal vehicle.

For the tax year 2025, the IRS established a standard mileage rate of $0.70 per mile for business miles driven ($0.67 in 2024).

This per diem mileage rate reimburses employees who drive their personal vehicles for costs for which they are not otherwise reimbursed.

In addition, it may be unfeasible to calculate the exact amount of depreciation, gas use, oil use, and other overhead cost for every trip. Instead, eligible users can use the fixed rate for every eligible mile driven.

Note

The standard privately owned vehicle mileage rate for business use in 2025 is $0.70 per mile ($0.67 in 2024).

Taxes on Per Diem Reimbursements

Per diem payments are not considered wages—and are therefore non-taxable—as long as they meet certain conditions. You will be subject to taxes if any of the following is true:

• Payment is more than the allowable federal per diem rate
• You did not file an expense report with your employer
• Your expense report did not include the date, time, place, amount, and business purpose of the expense
• Your employer gave you a per diem and didn’t require an expense report

If any of the above situations is true, your per diem will be considered wages and will be subject to income tax withholding and payroll taxes. Your employer will report the amount on your W-2 form. If your per diem was above the allowable federal per diem rate, only the excess amount will be considered wages.

To substantiate your travel and related expenses, you will be required to maintain a log that includes the days you traveled for business, where you went, and the business purpose of the trip.

Long-Term Travel and Tax Implications

If your business-related travel lasts longer than a year in one location—even if it involves two or more separate assignments—you may not be eligible for tax exemption under the per diem tax rules.

To avoid unfavorable tax consequences, consult with your tax advisor before embarking on an extended business trip. 

Per Diem As a Salary Alternative

Because per diem payments are non-taxable, some people may raise the question, “Can I accept a lower salary with per diem instead of a higher salary with no per diem?” The answer is no. Per diem policies cannot be created in a manner that allows wages to be labeled as something else—in this case, per diem.

This is because the intention of per diem is not additional compensation but a reimbursement of expenditures. It’s assumed that those traveling will need to eat multiple meals per day and spend money on incidentals while they are away from home.

These expenses are not meant to incentivize a worker but rather ensure a safe, healthy standard of living while traveling for work.

Per Diem vs. Stipend

Per diem refers to a daily allowance that an employer pays to an employee to cover their expenses while on a business trip or assignment.

Similarly, a stipend is a fixed amount of money that an employer pays to an employee. A stipend may be paid on a regular basis, such as monthly or weekly, or it may be a one-time payment for a specific project or assignment.

Stipends are often used in academic and research settings. They’re usually paid to students or researchers to support their living expenses while they conduct their studies or research.

Although both per diem and stipends may be used to cover living expenses, per diem is more commonly used for expenses away from a home. In addition, a stipend is often a less rigidly calculated figure that simply awards a broad amount to be used for more generic purposes.

Advantages and Disadvantages of Per Diem

Advantages

There are several reasons why companies and individuals may prefer per diem over actual expense reimbursement.

• Predictable Budgeting: By using per diem rates, employers can establish a predictable travel budget and avoid unexpected expenses that may arise during business travel.
• Reduced Administrative Work: Per diem eliminates the need for employees to track and submit receipts for individual expenses.
• Simplicity in Tax Reporting: Per diem rates can simplify the tax reporting process for both the employee and employer. Instead of potentially being in non-compliance with non-allowable actual expenses having been reimbursed, it is safer and more straightforward.
• Equity: Per diem is a more equitable method of reimbursing employees for their travel expenses. It also eliminates the need for them to pay out-of-pocket expenses and wait for reimbursement.

Disadvantages

Unfortunately, there are also reasons why companies and employees prefer getting reimbursed for actual costs incurred.

• Does Not Cover All Expenses: Per diem rates may not cover all expenses incurred during business travel. This means that employees may need to cover out-of-pocket expenses for anything not covered by per diem necessary for their trip.
• Under or Overpayment: Because the nature of each employee’s travel will be different, companies risk overpaying or underpaying employees as actual costs incurred will rarely if ever be exactly the same as the per diem amount.
• Risk of Non-Compliance: Though per diem rates reduce risk in some areas, they increase risk in others. Employers must ensure that their per diem rates comply with tax regulations and are reasonable based on industry standards. Failure to do so could result in penalties or fines from tax authorities.

Pros

• Creates a more predictable travel budget

• May reduce administrative burdens

• May increase employee satisfaction due to simplicity and time savings

• Promotes equity by reimbursing everyone the same amount (assuming travel to the same location)

Cons

• May result in employees needing to pay for non-per diem expenses out of pocket

• May put companies at financial risk if incorrect rates are paid

• Often overpays or underpays employees as actual costs may not exactly match rates

• Failure to comply with tax regulations can mean IRS fines or penalties

Is Per Diem a Salary?

No, per diem is a variable expense companies pay to employees for expenses incurred on business trips. It’s usually only incurred when workers are traveling or on assignment. Per diem is not a standard amount, due to different geographical areas having different per diem rates.

What Is the Maximum Per Diem Allowed?

The IRS will stipulate special per diem rates for travel or expenses incurred in high-cost areas. For example, the 2025 special per diem rates included a maximum of $319 for travel to high-cost localities.

Is Per Diem Reported to the IRS?

Per diem in excess of federally accepted rates is treated as taxable income and reported to the IRS as part of normal income reporting. Normal per diem amounts paid under an accountable plan are not included in an employee’s W-2.

Do I Need to Collect Receipts If I Receive Per Diem?

Consult your company’s receipt policy to understand best whether receipts are required. In many cases, companies try to avoid requiring employees to maintain receipts so they can focus on their travel-related work. Instead, companies agree to pay government-approved rates for meals and travel-related costs.

Is Per Diem Paid Out on Weekends?

Consult your company’s specific policy concerning per diem. In general, companies often have policies in place to cover meals and lodging for days worked, even on weekends. Workers may need to attend a weekend conference; in this case, per diem would be used over the weekend.

The Bottom Line

Per diem payments provide reimbursement to employees who travel for business purposes. Rates vary by location and time of year and are broken down into two categories: lodging and meals and incidental expenses (M&IE). 

As long as your payments do not exceed the maximum federal per diem rate, they are non-taxable. If per diem payments exceed federal limits, any excess will be taxed as ordinary income.

Per diem rates may change annually, and per diem tax laws can be complicated. Consult a qualified tax specialist if you have questions or concerns about your company’s per diem policy.