All You Need To Know About Per Diems In The US

Per Diem in US Explained

The process of checking and approving expense reports for business travel can be a daunting task if your business reimburses employees for “actual” travel expenses. Having to check dozens of receipts for lodging, meals and other expenses submitted by employees can be difficult and time-consuming. If you are looking for a way that helps you cut down your admin time and reduces recordkeeping, setting PER DIEM rates is the way to go!

Having a fixed amount to reimburse employees would help you in managing travel expenses better. Fortunately, the IRS (Internal Revenue Service) has given some guidelines for calculating per diem rates as per the location or via the high-low substantiation method. Read on to know more about per diems in the US and how to set them as per IRS guidelines.  

What Is Per Diem?

Per diem has been derived from a Latin phrase meaning “per day” or “for each day”. It means a daily allowance that companies give to employees, guiding them on how much they can spend per day on food and lodging, while they travel for work. The companies can either give it in advance or the employees can get it reimbursed after returning from the trip. 

According to the IRS, the per diem expenses include lodging, meal, and incidental expense, as explained below:  

  1. Lodging expenses – These expenses include overnight stays in hotels, resorts, serviced apartments, inns, etc. The rates for lodging change based on travel location
  2. Meal expenses – These expenses include money spent on breakfast, lunch, and dinner. The rates for meals also change based on the location of travel
  3. Incidental expenses – Incidental expenses are the extra money your employee may spend during the trip like laundry or dry cleaning services, tips given to porters, baggage carriers, hotel staff, etc.

Generally, companies combine meals and incidental expenses (M&IE) and reimburse them together. One expense that per diem DOES NOT cover is transportation or mileage. Companies can either arrange transportation for their employees or employees can spend out of their own pockets and get it reimbursed by filing an expense report. 

How Does It Work?

Since the daily allowance is fixed, using per diem makes the process of expense filing easier for employees as well. They do not have to keep and submit any expense receipts for approval. However, to keep a track of the expenses according to the accountable expense reimbursable plan, you must ask your employees to file an expense report within 60 days of their trip, including the following information:

  • Business purpose 
  • Date & location of business trip
  • Receipts for Lodging (if using the M&IE per diem only)

Doing so is important if you want to avoid tax implications for your employees. It’s important to understand here that per diem is not a part of employees’ wages. Therefore, as long as the employee provides an expense report and payments do not exceed the federal rate, they are not taxable income. However, an unsubstantiated reimbursement higher than the federal per diem rate would be considered taxable income.

What Are The Current Per Diem Rates In The US And How Can You Calculate It?

Even though companies can set their per diem rates, the US Govt provides guidelines to help them decide it for their business travel expenses. Each year, the General Service Administration (GSA) publishes a list of standard rates, effective October 1. 

To know it, visit the GSA site and enter the city or zip code of the city your employee/s would be visiting. The per diem rates would be broken down into 2 categories – lodging, and meal & incidental expenses (M&IE). 

GSA for per diem rates
(Source: https://www.gsa.gov/travel/plan-book/per-diem-rates)

You can use the relevant per diem rate for each day your employee is out on a business trip. However, for the first and last day of travel, you only need to pay 75% of per diem rates for meals and incidental expenses. This is because it is considered that the first and last day won’t have the same level of M&IEs. Refer to this table on the M&IE breakdown page for “First and Last Day of Travel” expenses.  

Now, let’s understand how you can calculate per diem for your company with the help of an example. Assume your employee is traveling to Seattle on a 5-day business trip in May, then to calculate the total per diem: 

Step 1: Visit the GSA site, and enter Washington in the “state” box. It will display lodging and M&IE per diem rates for all cities in Washington

Step 2: Now, enter Seattle in the search bar on the right corner to know lodging per diem rates for each month; $232 for May 

Lodging per diem in US

Step 3: Similarly, in the M&IE section, enter Seattle in the search bar to know the total per diem rate for meals and incidentals i.e. $76 

meals & incidentals per diem rates

Step 4: Now, add the per diems rates for each day:

Total Per Diem of a 5-Day Trip to Seattle
DayLodgingM&IETotal per diem
Day 1$232$57*$289
Day 2$232$76$308
Day 3$232$76$308
Day 4$232$76$308
Day 5$232$57*$289
*75% of the total M&IE per diem

So, the total amount to be reimbursed to the employee for lodging, meals, and incidentals would be $1,502.

This is quite simple. However, if you don’t wish to check every city separately for setting per diem rates for business travel, another alternative to calculating it is the high-low substantiation method

The IRS releases new rates each year for the continental United States: one for high-cost areas and one for all other areas. For instance, 2020-2021 per diem rates are:

High-Cost areasAll other areas
Total per diem $292$198
Meals and incidentals only $71$60

To find out which places are considered high-cost, you can check section 5 of this year’s IRS bulletin. You can use any of one the above-mentioned methods if your employees are traveling within the US.  

If your employees are traveling outside the US, international per diem rates are managed by the US Department of States. Visit the website to check the rates when your employees travel to different countries. Note: International per diem rates are revised monthly, therefore, make sure you keep checking it regularly.

What If You Don’t Want To Go By The Federal Per Diem Rate?

Like we said before, you can set your per diem rates if you don’t wish to compensate at the federal rate. The IRS offers two choices for this:

  1. Take your total per diem amount, subtract the standard meals and incidentals rate, and treat the remainder as the lodging amount. For instance, if you wish to set your per diem at $200 and the standard M&IE is $76, then your lodging amount would be $124
  2. Designate 60% for lodging and 40% for meals and incidentals in your total per diem amount. For instance, if your total per diem is $200, then $120 would be your lodging amount and $80 would be your M&IE amount

Regardless of what method you choose to calculate per diems for your employees, it’s important to be consistent. Therefore, pick a method that works best for your business, and stick with it for all employee business travel.

Manage Your Per Diems With ITILITE

Once you have understood the per diem rules, you can easily issue payments to your employees for their business travel expenses. To make the process easier, integrate a powerful travel and expense management software to automate and streamline your approvals and expense reimbursements. To understand how T&E management automation can help your company with per diems, schedule a demo with our product expert today!

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