Alternative International Assignments Policies and Practices Survey

Policies and practices surveys for "alternative" international assignment (AIA) types

The latest report from the Short-Term Assignments Survey was published in September 2026 and can be purchased online.

The latest report from the Permanent Moves/One-Way Transfers and Internationally Hired Foreigners Survey was published in September 2025 and can be purchased online.

In recent years, international organizations looking to move talent around the globe have increasingly turned to solutions that are more flexible, fit for purpose and cost-efficient than long-term expatriate assignments.

Our AIA surveys uncover the latest market trends in managing short-term international assignments, permanent transfers/one way moves and internationally hired foreigners. The studies also explore how the relative policies and practices have evolved.

The surveys focus on:

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Short-term assignments

  • Trends and demographics
  • Short-term assignment policy framework
  • Compensation approach and tax support
  • Cost of living/daily living costs
  • Housing and utilities
  • Mobility and hardship premiums
  • Education and childcare
  • Transportation
  • Travel and home leave
  • Relocation assistance and additional support
  • Benefits coverage
Order the 2026 survey results results now →
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Permanent moves/one-way transfers and internationally hired foreigners

  • Trends and management
  • Compensation approaches
  • "Plus" allowances, benefits in kind and relocation support — eligibility, delivery, tax and recurrence
  • Benefits
Order the 2025 survey results now →

 

Key highlights from the latest editions

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Short-term assignments results (2026 edition)

  • Short-term assignments (STA) remain a core mobility tool: 38% reported an increase and 43% stability in the number of STAs during 2024-2025. The outlook for 2026-2027 is even stronger, with 48% expecting volumes to increase, 45% expecting stability, and only 7% anticipating a decline.
  • Cost containment remains the leading challenge in managing STAs, followed closely by managing exceptions, career planning and retention post assignment, tracking informal arrangements and tax compliance.
  • Many organizations believe STAs have positive effects on employee outcomes, but relatively few can demonstrate this objectively. Over half believe STA alumni benefit from accelerated skill development and career progression, nearly half believe engagement is higher, and 40% believe retention is stronger. However, most cannot support these views with data.
  • Close to 60% of organizations do not allow accompanied assignments under policy, a small increase from last edition.
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Permanent moves/one-way transfers results (2025 edition)

  • Among the two-thirds or organizations who have a formal policy for internationally hired foreigners, almost two-thirds apply the same policy as for one-way transfers.
  • Most participants apply the same approach or policy to one-way transfers and internationally hired foreigners even though internationally hired foreigners are more often managed by HR rather than the global mobility team, reverse from the one-way transfers.
  • Close to one-third – a six-percentage-point increase from the last edition – have one global policy/practice for internationally hired foreigners, consistently applied to all locations
  • The main reason for employers to relocate employees internationally permanently remains providing career opportunities for employees. Employee value proposition (EVP)/talent attraction and retention keeps the second rank.
  • Nearly 60% of survey respondents indicate that they provide the same allowances/benefits to internationally hired foreigners as to one-way transfers and two-thirds, the same relocation support items.

Access all results in our interactive Mobility Benchmarking Assistant tool.


Participation remains open

You may participate at your convenience to receive discounted access to the full survey data and benefit from participant-only benchmarking opportunities until the end of the next calendar year from the latest survey cycle.

You can complete the surveys online at your own pace. The interactive questionnaires will chart your progress, allowing you to take a break at any point and resume at your convenience.

2026 update The 2026 Short-Term Assignments survey report is now available to purchase.

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WIAPP survey Mercer's Worldwide Survey of International Assignment Policies and Practices (WIAPP) explores the latest trends in strategic global mobility management and long-term assignment policies and practices. 

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