What Is Per Diem? Meaning for Employees, Daily Rates, and Per Diem Work
Per diem is Latin for "per day," and at work it means one of two things. The first is a daily allowance an employer pays to cover lodging, meals, and incidental expenses while an employee travels for business. The second is per diem employment, a work arrangement where someone is paid by the day or shift they actually work, with no guaranteed hours, no fixed schedule, and usually no benefits.
Both meanings share the same idea: pay tied to a day rather than to a salary or a standing schedule. Which one applies depends on context. A job listing that says "per diem nurse" is talking about the employment type. An expense policy that says "per diem is $80 a day" is talking about the travel allowance. This guide covers both, starting with the allowance because it is where most of the rules live.
- Per diem means "per day." As a travel allowance, it is a flat daily amount for lodging, meals, and incidentals instead of itemized receipts
- The US General Services Administration sets federal per diem rates for the continental US each fiscal year, and most private employers use the same tables
- On the first and last day of a trip, federal rules pay 75 percent of the meals and incidentals rate
- Per diem paid under an accountable plan at or below federal rates is not taxable income; amounts above the rate, or paid without an expense record, are wages
- A per diem employee works only when scheduled, is paid for the days worked, and typically gets no guaranteed hours, PTO, or benefits
- Per diem workers are still employees, so minimum wage and overtime rules apply to their hours
Per Diem as a Travel Allowance
When an employee travels overnight for work, the employer has to cover the cost of the trip. There are two ways to do it. The first is reimbursement: the employee keeps receipts, submits an expense report, and gets paid back the exact amount. The second is per diem: the employer pays a fixed daily amount for the destination and the employee spends it as they see fit.
Per diem is popular because it removes most of the paperwork. Nobody has to photograph a sandwich receipt, and the finance team does not have to audit 40 line items per trip. The employee knows the budget before they leave, and if they spend less, the difference is theirs to keep under most plans.
What per diem covers
A standard per diem allowance has two components:
- Lodging: the nightly hotel rate. Many employers require an actual hotel receipt for this portion even when they pay meals at a flat rate, because lodging costs vary so much by city.
- Meals and incidental expenses (M&IE): breakfast, lunch, dinner, and small items such as tips for hotel staff and baggage handlers. Incidentals do not include transportation, which is reimbursed separately.
Airfare, rental cars, mileage, parking, and conference fees are not part of per diem. They are reimbursed on their own, usually against receipts.
How the GSA rate system works
In the United States, the reference point for per diem is the rate table published by the General Services Administration. The GSA sets rates for federal employees traveling within the continental United States (CONUS), and it publishes them by fiscal year, which runs from October 1 to September 30. Rates for the coming fiscal year are typically announced in mid-August.
The system has two tiers:
- A standard CONUS rate that applies to any location not listed separately. This covers most of the country.
- Non-standard area rates for roughly 300 higher-cost cities and counties, such as New York, San Francisco, Washington, and many resort towns. These rates are often seasonal, so the same city can have a different lodging rate in July than in January.
You can look up the current rate for any US city or ZIP code on the GSA per diem rates page. Rates for Alaska, Hawaii, US territories, and foreign destinations are set by the Department of Defense and the State Department rather than the GSA, and the GSA page links to those tables.
Private employers are not required to use GSA rates. They are free to pay more, less, or a single flat rate everywhere. But GSA rates are the ceiling for tax-free treatment (more on that below), so most companies either adopt them directly or use them as the benchmark.
The first and last day rule
Federal travel rules pay only 75 percent of the M&IE rate on the day an employee departs and the day they return, on the theory that part of each of those days is spent at home. The GSA states this directly in its per diem FAQ: on the first and last travel day, federal employees are eligible for 75 percent of the total M&IE rate for their temporary duty location. Many private employers copy the same rule, and the IRS accepts it as a reasonable proration for tax purposes. Lodging is paid in full for every night the employee stays over.
The IRS high-low method
For employers who want to avoid looking up a different rate for every city, the IRS publishes an optional simplified table each year called the high-low substantiation method. It divides the country into a short list of "high-cost" localities and treats everywhere else as "low-cost," with one combined lodging and M&IE rate for each tier. The specific dollar amounts change every fiscal year and are published in an IRS notice each fall, so check the current notice before using them. The high-low method is a convenience, not a requirement, and an employer cannot switch between the high-low table and the GSA table for the same employee within a year.
Is per diem taxable?
Per diem is tax-free to the employee when three conditions are met. The IRS calls this an accountable plan, and the rules are laid out in Publication 463, Travel, Gift, and Car Expenses:
- Business connection. The travel is for the employer's business, not personal.
- Adequate accounting. The employee substantiates the time, place, and business purpose of the trip within a reasonable period. Under a per diem arrangement, the employee does not need to prove the amount spent on meals, only that the trip happened.
- Return of excess. If the employer advances more than the allowable per diem, the employee returns the difference.
When those rules are met and the daily rate is at or below the federal rate for the location, the per diem does not appear on the employee's W-2. When the rate exceeds the federal rate, the excess is taxable wages. When the employer pays a daily allowance with no expense record at all, the whole amount is wages subject to withholding and payroll tax, which is how per diem sometimes ends up on a pay stub as a separate earnings line.
Per diem paid without travel is just pay
Some employers use the word per diem for a daily bonus, a shift premium, or a lump sum paid to workers who never travel. That money is ordinary wages. Calling it per diem does not change its tax treatment, and treating it as tax-free can leave both the employer and employee owing back taxes and penalties.
Per diem vs expense reimbursement vs stipend
| Per diem | Expense reimbursement | Stipend | |
|---|---|---|---|
| What it is | Flat daily amount for lodging and meals on a work trip | Repayment of exact amounts spent, against receipts | Fixed periodic payment for a purpose such as phone, internet, or wellness |
| Receipts required | Usually only for lodging; none for meals | Every expense | None |
| Employee keeps the surplus | Yes, if they spend less than the rate | No | Yes |
| Taxable to employee | No, under an accountable plan at or below federal rates | No, under an accountable plan | Usually yes, unless tied to a substantiated business expense |
| Administrative effort | Low | High | Very low |
| Best for | Frequent travelers, predictable trips | Occasional or high-cost travel | Recurring non-travel costs |
Per Diem as an Employment Type
The second meaning of per diem describes how someone is employed rather than how their expenses are paid. A per diem employee is hired to work on an as-needed basis and is paid for each day or shift they actually work. They are not on a fixed schedule, they are not promised any minimum number of hours, and they can generally accept or decline a shift when it is offered.
The arrangement is most common in healthcare, where hospitals keep per diem nurses, techs, and aides on call to cover vacancies and census spikes. You will also see it with substitute teachers, event and hospitality staff, warehouse workers during peak season, and, increasingly, contact centers that need overflow agents for a product launch or a holiday surge. In hospitals the term is often used interchangeably with PRN, from the Latin pro re nata, "as the situation demands."
How per diem scheduling and pay work
A per diem worker is typically paid an hourly rate, and often a higher one than a comparable full-time employee, because the higher rate stands in for the benefits and stability they do not receive. Some roles pay a true daily rate instead, a flat amount per shift regardless of small variations in length.
The mechanics usually look like this:
- The employer keeps a roster of per diem staff who have completed onboarding and training.
- When a shift needs coverage, the scheduler offers it to the roster, often first-come first-served or by seniority.
- The worker accepts or declines. Many employers set a minimum commitment, such as two shifts a month or one weekend a quarter, to stay on the active list.
- Hours are recorded through the normal time clock or time card process, and the worker is paid on the regular payroll cycle for the hours worked.
Because there is no guarantee of hours, a per diem employee can go weeks without a shift and then work six days in a row. That variability is the trade-off for flexibility.
Per diem vs part-time vs full-time vs PRN
| Per diem | Part-time | Full-time | PRN | |
|---|---|---|---|---|
| Scheduled hours | None guaranteed; shift by shift | Regular schedule below the full-time line, commonly 20 to 29 hours a week | Regular schedule at or above the employer's full-time line, commonly 32 to 40 hours | None guaranteed; same as per diem |
| Pay basis | Hourly (often a premium rate) or per shift | Hourly | Hourly or salaried | Hourly, often a premium rate |
| Benefits | Usually none | Sometimes, depending on employer policy and hours | Yes, in most organizations | Usually none |
| PTO accrual | Rarely | Sometimes, often prorated | Yes | Rarely |
| Can decline shifts | Yes | Generally no for scheduled shifts | No | Yes |
| Typical use | Coverage gaps, seasonal peaks, specialty roles | Steady partial coverage | Core staffing | Healthcare coverage gaps |
The line between per diem and part-time is about predictability, not hours. A part-time employee who works every Tuesday and Thursday has a schedule; a per diem employee who happens to work two days a week does not. For a fuller comparison of the hour thresholds involved, see how many hours is full time.
Benefits and PTO for per diem workers
Most employers do not offer health insurance, retirement matching, or paid time off to per diem staff, and the higher hourly rate is meant to compensate for that. There are two important exceptions:
- State paid sick leave laws. A growing number of states and cities require paid sick leave for anyone who works a minimum number of hours in the jurisdiction, regardless of employment classification. A per diem worker who crosses that threshold accrues sick time. Our guide to paid sick leave laws by state lists the thresholds.
- The Affordable Care Act. Employers with 50 or more full-time equivalent employees must offer health coverage to anyone who averages 30 or more hours a week over the measurement period. A per diem worker who consistently picks up 30-plus hours can become eligible even though their status says per diem.
Overtime and the FLSA
Per diem is not an exemption from wage and hour law. Per diem workers are employees, they are almost always non-exempt, and they are entitled to minimum wage for every hour and to overtime at 1.5 times their regular rate for hours over 40 in a workweek, or over a daily threshold in states like California. Employers sometimes assume that a daily-rate worker is outside overtime rules; they are not. A flat day rate still has to be converted to an hourly regular rate for the overtime calculation. See overtime pay laws by state for the thresholds.
The same applies to time off rules. Our guide to time off rules for hourly employees covers which mandates reach per diem and other variable-hour staff.
Pros and cons of per diem work
| For the worker | For the employer | |
|---|---|---|
| Pros | Control over schedule; higher hourly rate; ability to work for several employers; a way into an organization | Coverage without adding permanent headcount; lower benefits cost; quick response to volume swings |
| Cons | No guaranteed income; usually no benefits or PTO; last to be scheduled when volume drops; often no seniority | Less continuity and institutional knowledge; more onboarding and credential tracking; risk of misclassifying or under-paying overtime |
Write the minimum commitment into the offer letter
The most common source of friction with per diem staff is an unspoken expectation. If you need per diem agents to take at least four shifts a month, or to be reachable within two hours of an offer, put it in the agreement. It protects the employer from an empty roster and tells the worker exactly what "as needed" means.
Per Diem in Contact Centers and BPOs
Contact centers use both meanings of per diem. Field-based roles such as regional trainers, implementation consultants, and quality auditors who visit client sites travel on a per diem allowance. And a growing number of centers keep a bench of per diem agents to absorb the volume spikes that come with product launches, open enrollment, tax season, and holiday retail.
The operational challenge with per diem agents is the same one that applies to any variable-hour worker: proving the hours. Because there is no fixed schedule to compare against, the time record is the only evidence of what was worked, and it drives three things at once: the paycheck, the overtime calculation, and eligibility for sick leave or ACA coverage.
HiveDesk records clock-in and clock-out times for every agent, whether they work two shifts a month or twenty, and produces the timesheets payroll needs without asking anyone to reconstruct a week from memory. Daily-rate contractors and hourly per diem staff show up in the same reports as full-time agents, so a manager can see who actually worked, for how long, and whether anyone is drifting past an overtime or benefits threshold.
Track Every Per Diem Shift Automatically
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Frequently Asked Questions
What does per diem mean?
Per diem is Latin for "per day." At work it refers either to a fixed daily allowance an employer pays for travel expenses such as lodging and meals, or to a type of employment where a worker is paid only for the days or shifts they actually work, with no guaranteed hours.
What is per diem pay?
Per diem pay usually means the daily travel allowance, paid instead of itemized expense reimbursement. In job listings, "per diem pay" can also mean the hourly or daily rate paid to a per diem employee, which is often higher than the rate for a comparable full-time role because it replaces benefits.
How much is per diem in 2026?
It depends on the destination. The GSA publishes a standard rate for the continental US and higher rates for about 300 non-standard areas, updated each federal fiscal year starting October 1. Look up any city or ZIP code on the GSA per diem rates page. Private employers can set their own rates, but amounts above the federal rate become taxable.
Is per diem taxable?
Not when it is paid under an accountable plan for a real business trip, at or below the federal rate for the location, with the employee documenting the time, place, and purpose of travel. Per diem paid above the federal rate, or paid without any expense record, is taxable wages.
Do you get per diem on the first and last day of a trip?
Yes, but at a reduced rate. Federal rules pay 75 percent of the meals and incidentals rate on the departure and return days. Lodging is paid in full for each night. Most private employers follow the same proration.
What is a per diem employee?
A per diem employee works on an as-needed basis and is paid for each day or shift worked. They have no guaranteed hours, no fixed schedule, and typically no benefits. The arrangement is common in healthcare, education, hospitality, and seasonal or overflow roles in contact centers.
Do per diem employees get benefits?
Usually not. Health insurance, retirement contributions, and paid time off are typically reserved for regular full-time and sometimes part-time staff. Exceptions exist where state paid sick leave laws cover all workers above an hours threshold, and where a per diem employee averages 30 or more hours a week and becomes eligible for health coverage under the Affordable Care Act.
Is per diem the same as part time?
No. Part-time employees have a regular schedule below the employer's full-time line. Per diem employees have no regular schedule at all and are offered shifts as needed. A per diem worker might work more hours than a part-timer in a busy month and none in a quiet one.
Can per diem workers get overtime?
Yes. Per diem is an employment arrangement, not an exemption from the Fair Labor Standards Act. Per diem workers are almost always non-exempt and must be paid overtime at 1.5 times their regular rate for hours over 40 in a workweek, plus any daily overtime their state requires. A flat day rate has to be converted to an hourly rate to calculate it.
What is the difference between per diem and PRN?
They describe the same arrangement. PRN, from the Latin pro re nata, is the term hospitals and clinics tend to use; per diem is the broader term used across industries. Both mean as-needed work paid by the shift with no guaranteed hours.
