Per Diem Meaning: What It Is and How It Works

Per Diem Meaning: What It Is and How It Works

Published By

Issam Siddique
ERP
May 21, 2025

Managing employee travel expenses can be a challenge for any business. From airfare to meals and lodging, the costs can quickly add up. If you're a business owner, you may already be familiar with the hassle of tracking every receipt and managing reimbursements. Fortunately, there’s a simpler way to handle it: per diem.

Per diem is a daily allowance given to employees to cover travel-related costs, reducing the need for complex reimbursements. In Saudi Arabia, where business travel is frequent, setting up a clear per diem system not only helps you control spending, it also ensures compliance with local labor laws.

To help you understand it better, this blog will explain the per diem meaning and why it’s an important tool for your business’s bottom line.

Understanding Per Diem Meaning

Per diem is a Latin word that means per day. In the business, it refers to a daily allowance given to employees or contractors to cover expenses during business travel. It’s usually paid in advance or reimbursed after the trip, depending on the company’s policy.

Instead of asking employees to submit receipts for every coffee, taxi, or meal, companies provide a flat rate that covers typical travel costs. This simplifies the reimbursement process and ensures employees are fairly supported during work trips.

Historically, per diem systems were introduced to reduce the burden of expense tracking. Employees knew exactly how much they could spend each day, and companies avoided the hassle of sorting through endless receipts.

What Does Per Diem Cover?

Per diem is intended to cover essential daily expenses employees incur while traveling for work. Although the basics are the same, the exact coverage can vary from one company to another. Generally, per diem includes:

Category Description
Meals and Small Daily Expenses (Incidentals) Daily meals (breakfast, lunch, dinner), snacks, beverages, tips, laundry, etc.
Lodging (Hotel Stay) Hotel stays or short-term rentals (rate may vary by location)
Local Transportation Taxis, Uber/Careem, public transport, or car rentals within the city

However, there are limits to what per diem can cover. Businesses typically set these amounts according to location and daily allowances.

What Per Diem Typically Does Not Cover

Per diem allowances exclude certain non-business or excessive expenses. These usually include:

Category Description
Personal Items Toiletries, clothing, and other non-business personal purchases
Non-Work Activities Leisure, sightseeing, or entertainment not related to business travel
Excessive Spending Costs that exceed company-approved or reasonable limits

Note: Airfare is typically managed separately and not included in the per diem unless explicitly stated in the company’s travel policy.

With a clear understanding of the per diem meaning and its coverage, let's dive into how it functions in practice and how it's applied to business travel.

How Does Per Diem Work?

How Does Per Diem Work?

Per diem amounts are not fixed; they vary depending on several important factors that influence travel expenses. Here’s how these factors come into play:

  1. Destination & Cost of Living: Employees traveling to high-cost areas, like major cities or international destinations, receive higher per diem allowances to cover the higher expenses for lodging, meals, and transportation.
  2. Duration of Travel: The longer the trip, the higher the per diem, as it is calculated on a daily basis and adjusted based on the number of days an employee is traveling.
  3. Company Policy: Different companies may have varying policies for per diem. Some offer a flat rate, while others adjust the allowance based on the destination or specific expenses.
  4. Local vs. International Travel: International trips generally come with higher per diem rates to account for the higher costs abroad compared to domestic travel.

Based on these factors, per diem is typically provided upfront or reimbursed afterward, without requiring employees to submit receipts for each expense. Let's look at an example to understand how per diem is calculated.

How to Calculate Per Diem?

As mentioned above, the total per diem is determined by a combination of factors, including the destination, duration of travel, and the company’s specific policy. 

To calculate the per diem, the following formula is used:

Total Per Diem = (Lodging Rate + Meals & Incidentals Rate) × Number of Days

Example:

Let’s say an engineer is traveling from Dammam to Riyadh for 3 days. The per diem rates are as follows:

  • Lodging Rate: SAR 300 per day
  • Meals & Incidentals Rate: SAR 150 per day
  • Transportation: SAR 100 per day

Now, to calculate the total per diem:

Per Diem per day = SAR 300 + SAR 150 + SAR 100 = SAR 550

Then, for a 3-day trip, 

Total Per Diem = SAR 550 × 3 days = SAR 1,650

The amount may be paid in advance or reimbursed after the trip, depending on company policy.

Now, let’s look into the different ways employers handle per diem payments and the variations you might encounter.

Types of Per Diem Payments: How Employers Handle It

Types of Per Diem Payments: How Employers Handle It

Employers determine per diem payments based on their policies, which may vary by company or region. In some cases, government-set rates apply, while others allow businesses to set their own.

Generally, per diem rates fall into three main types:

i) Fixed Per Diem Rates: As the name suggests, these are set amounts determined by factors like industry standards, location, and time of year. Employees receive a fixed daily allowance and do not need to submit receipts for every expense. Typically, companies cover fixed per diem rates by prepaying the employee or using a corporate credit card.

ii) Partial Per Diem Rates: In this arrangement, the company covers part of the daily expenses, and the employee pays the rest. This is common for longer trips where employees split time between meetings and the office.

The per diem system can differ for international travel, as each country sets its own allowances based on local costs. Companies often use software or spreadsheets to track these amounts and make sure employees don’t exceed their allowances. 

However, it's important not to confuse per diem meaning with reimbursement, as both are distinct methods businesses use to handle travel expenses.

Per Diem vs. Reimbursement: Key Differences

Although per diem and reimbursement approaches aim to support employees during business trips, they operate quite differently:

Per Diem Reimbursement
A fixed daily allowance is provided before or during travel. Employees pay out-of-pocket and are reimbursed after submitting receipts.
Simple and predictable—employees know the exact amount they’ll receive. Offers flexibility but requires more administrative effort.
No need to submit receipts for individual expenses. Requires detailed tracking and submission of all receipts.
Ideal for routine travel costs like meals, lodging, and incidental expenses. Suitable for covering specific expenses with more detailed tracking.

Per diem is a popular choice for many companies as it’s simple and predictable. By setting a fixed daily allowance for each employee, it makes budgeting and handling travel expenses much easier. Let’s take a detailed look at the real advantages it can bring to your business.

What Are the Benefits of Per Diem?

Paying a per diem is an easier and cost-effective way for companies to reimburse employees for travel expenses. It saves both employers and employees from having to track every single expense. Here are the key benefits:

For Employers:

Benefits of Per Diem
  • Simplified Expense Tracking: A fixed per diem rate eliminates the need to review individual receipts, streamlining expense management.
  • Better Cost Control: By setting per diem rates, businesses can control travel expenses, reduce tax burdens, and ensure compliance with regulations.
  • Attract Top Talent: Competitive per diem rates can make your company more attractive to potential hires and can contribute to employee retention.
  • Simplified Reporting: Employees can submit simpler reports without needing to track receipts, making reporting more efficient for both parties.
  • Easy to Follow Company Rules: A clear per diem policy ensures consistency across departments, making it easier to manage budgets and avoid overspending.
  • Predictable Costs: Per diem allows businesses to predict and control travel expenses, supporting efficient financial planning.

For Employees:

Benefits of Per Diem For Employees
  • Financial Clarity: Employees know upfront how much they can spend, which helps in planning and budgeting their travel expenses.
  • Increased Flexibility: Employees have more control over how they manage their daily travel expenses, providing a more comfortable travel experience.
  • Less Documentation: Employees can avoid the time-consuming process of tracking receipts or submitting detailed reports, making the whole process more efficient.
  • Tax Benefits: In some cases, per diem payments may be tax-free, depending on local tax laws, providing additional financial benefits.
  • Fair Compensation: Employees don’t have to pay out-of-pocket for work-related travel expenses, ensuring they are adequately compensated for their time away.
  • Clear Spending Limits: It sets clear spending limits, helping employees adhere to company guidelines and reducing reimbursement disputes.

Despite its advantages, managing per diem can come with a few challenges. Let’s look at the common issues. 

Common Challenges and How to Overcome Them

Common Challenges and How to Overcome Them

Even with a clear per diem policy, businesses in Saudi Arabia may face some challenges. Here are a few common issues and practical solutions:

  1. Disputes Over Per Diem Rates: Employees may feel that the per diem rates don’t cover their actual travel expenses.

Solution: Align per diem rates with industry standards and government guidelines. Review and adjust the rates annually to keep them in line with inflation and regional cost changes.

  1. Misuse or Abuse of Per Diem: Employees might misuse the per diem for non-business-related activities or exceed the allowance.

Solution: Set clear limits for meals, lodging, and transportation. Require manager approval for extended travel and monitor spending through post-trip audits.

  1. Exchange Rate Confusion for International Travel: Fluctuating exchange rates for international trips can cause confusion.

Solution: Use standard exchange rates from the Saudi Central Bank (SAMA) to ensure consistency and fairness.

  1. Policy Miscommunication: Employees may not fully understand the per diem policy, leading to inconsistent claims.

Solution: Train employees on per diem policies and update the employee handbook regularly to keep everyone informed.

  1. Lack of cost transparency and accurate reporting: Without receipts, tracking exact expenses becomes difficult.

Solution: Establish strong internal controls and ensure clear communication about per diem usage. This helps in monitoring spending and identifying areas for cost reduction.

These challenges can be avoided by establishing clear guidelines and making sure employees understand how to use per diem properly. But before adopting a per diem system, it’s important to understand how it impacts tax reporting and compliance, especially in Saudi Arabia. 

How Per Diem Affects Tax Reporting and Compliance in Saudi Arabia

How Per Diem Affects Tax Reporting and Compliance in Saudi Arabia

Per diem is not only a tool for expense management, but it also plays a vital role in ensuring tax compliance. In Saudi Arabia, employees are not subject to personal income tax, so per diem allowances are generally not taxable. However, businesses must still adhere to local tax regulations to ensure accurate reporting.

Here's what you need to know about per diem and its impact on tax compliance.

  • Tax-Free Within Limits: Per diem payments are not subject to tax as long as they remain within the company's or local guidelines. If the per diem exceeds these limits, it may be considered taxable income.
  • Accurate Financial Reporting: Per diem payments must be recorded accurately in financial statements as operating expenses. These records are important for Zakat assessments and corporate tax audits.
  • Documentation: Keep clear records of travel dates, trip reasons, locations, and approved amounts. Retain receipts and forms to ensure the per diem remains tax-free.
  • Clear Policy: A clear per diem policy, or "accountable plan," is essential. Employees should submit receipts or confirm that they are adhering to company-set rates.
  • Audit and Risk Mitigation: Proper tracking of per diem payments helps avoid issues during audits, reducing the risk of fines or complications with tax authorities.
  • Official Travel Guidelines: Align per diem rates with government recommendations or industry standards, especially for higher-cost locations.

Final Words

Hope you now understand the per diem meaning and how it simplifies travel expense management for both businesses and employees. These daily allowances make covering travel costs easy, eliminating the need for detailed expense reports.

While it may seem like a simple concept, per diem is an essential tool for managing business operations. A clear per diem policy helps control travel budgets and reduces administrative work.

If you're looking to simplify your company's travel expenses and ensure accurate per diem management, HAL ERP can help. Our Expense and Payroll Modules can seamlessly manage travel allowances, reimbursements, and policy compliance, giving you more time to focus on what truly matters. 

  • Easy Expense Tracking: Track and manage employee expenses with ease.
  • Simplified Per Diem: Set daily allowances quickly and hassle-free.
  • Stay Compliant: Ensure all expenses align with company policies and regulations.
  • Real-Time Monitoring: Keep your travel budget in check with real-time tracking.
  • Seamless Payroll Integration: Automatically process reimbursements and per diem payments.
  • Powerful Reports: Generate detailed reports for better financial planning.

Request a Demo to learn more!