Data solutions for effective management of short-term assignments

Short-term international assignments allow companies to transfer skills, knowledge and resources quickly and cost effectively, providing a quick response to business needs. However, living costs for short term assignees are different from other categories of mobile workers. Mercer offers a powerful tool to help your company determine per diem rates suitable for short term.

Mercer's Per Diem Allowance Calculator is a tool to compensate employees for the cost of daily life at short-term assignment locations.

It is designed specifically for employees on international assignments lasting 3-12 months. It is intended to provide a fixed daily living allowance, equitable to all assignees in the same host location, regardless of salary level or home country. Our per diem recommendations will allow you to establish budgets in lieu of managing expenses.


The Per Diem Allowance Calculator can be easily designed to match your company's practices:

  • Three levels are offered, letting you choose the per diem allowance based on your company's budget and spending assumptions. 
  • You can customize the market basket elements according to your own specifications.
  • Or you can use Mercer's recommended baskets: Mercer's standard basket, Mercer's apartment stay per diem basket, Mercer's hotel stay per diem basket & Mercer's business travel per diem basket.

The Per Diem Allowance Calculator is conveniently housed with your other Mercer mobility tools and delivers Mercer's reliable short-term assignment data in a way that is easy to use and share. Mercer's Per Diem Allowance Calculator allows you to establish cost-effective and consistent per diems. Our per diem data is:

  • Accurate. Mercer's global expertise and years of pricing surveys allow us to collect and deliver the recommendations for close to 400 locations. 
  • Transparent. We can break down our recommendations to show exactly what makes up the numbers. 
  • Up-to-date. We update pricing data at least twice a year and more frequently in locations with volatile prices. 
  • Easily customized. The Per Diem Allowance Calculator is flexible, allowing for differentiation by type of assignment or other factors, in order to provide recommendations most applicable to your assignees.

Contact your consultant or use our form to discuss available options and order data.

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