Return on investment (ROI) is a common question in international assignments. And it’s no surprise why. Sending an employee abroad is one of the most expensive talent moves a company can make—there’s housing, schooling, allowances, tax equalisation, and relocation costs as base expenses. Leadership wants to know if the investment is paying off, and HR or mobility teams are under pressure to justify those costs in the same language finance uses: return on investment.
But the challenge is that assignments shift, roles evolve, and people move on. The spreadsheet might capture the costs, but can it really capture the long-term value of leadership growth, cultural integration, or market entry? Which raises the real question: can ROI on an international assignment ever be neatly measured? Or maybe we’re asking the wrong question entirely.
I’ve been helping families relocate to Australia for nearly two decades—and I’ve moved across continents myself more times than I can count. From what I’ve seen, companies often focus on ROI calculations but overlook the bigger picture. The truth is, we need to be more strategic in our approach to ROI in global mobility.
What We Typically Try to Measure
Most organisations focus on two main areas when calculating ROI.
Financial (the hard ROI)
Total Assignment Cost vs. Alternative Solutions
When companies weigh up whether to send an employee overseas, one of the first considerations is cost. A full international assignment—complete with relocation expenses, housing, schooling, and allowances—can run into hundreds of thousands of dollars over the course of a few years. This can prompt boards and finance teams to question whether it’s more efficient to seek cheaper alternatives.
The most common comparisons are:
- Hiring Locally. On paper, recruiting local talent appears to be the more cost-effective option. There are no relocation allowances, no family support costs, and no disruption from the move.
- Short-Term Assignments or Frequent Travel. Another alternative companies explore is sending employees on short-term rotations or frequent business trips, rather than relocating them permanently. This may appear cheaper—there is less need for family support, no long-term housing allowances, and reduced moving costs.
Revenue Impact
Beyond cost savings, one way to assess the value of an international assignment is to examine the revenue side of the equation. Companies check whether an assignee can directly influence a company’s ability to grow, compete, and expand in ways that far outweigh the cost of relocation.
Operational Savings
While cost and revenue are often the headline measures of an assignment’s value, operational savings can quietly deliver some of the most sustainable returns. Companies assess these savings through improved process efficiency, fewer costly errors, faster delivery times, and better knowledge transfer between teams.
When an assignee brings global expertise into a local operation, the results are evident not just in individual performance but also in measurable improvements to how an office, department, or supply chain operates.
Strategic & Talent Development Metrics (the "soft" ROI)
Not every return on an international assignment shows up in dollars and cents. Some of the most valuable outcomes are “soft” ROI—intangible but highly strategic benefits that influence a company’s long-term success. These often relate to how well the assignment develops leadership capabilities, strengthens global collaboration, and builds a pipeline of future-ready talent.
Strategic and talent development metrics track how assignments contribute to:
- Leadership Growth. Assignees gain global experience, cultural agility, and resilience that prepare them for senior leadership roles.
- Succession Planning. Assignments help identify and groom high-potential employees for future critical positions.
- Employee Engagement and Retention. Supporting international career opportunities demonstrates a commitment to employee growth, which often leads to increased loyalty and reduced turnover.
- Cultural Competence. Exposure to different markets builds cross-cultural understanding, which strengthens collaboration across regions.
So What Makes It Difficult to Measure ROI?
It mostly comes down to trying to put hard figures on soft skills. After years of watching companies struggle with this, we recognise these patterns:
High Costs but Intangible Benefits
The costs—housing, schooling, relocation, allowances, tax equalisation—are straightforward and easy to calculate. They hit your budget immediately and demand attention.
However, the benefits—market entry, knowledge transfer, leadership development, cultural bridging—are often intangible, long-term, and don’t always show up on a Profit and Loss statement immediately. This mismatch makes every ROI discussion feel like comparing apples to oranges.
Strategic vs. Financial Goals
Many assignments are made for strategic reasons, such as building a presence, strengthening client relationships, and aligning global culture, rather than focusing on immediate revenue. That makes it difficult to put a dollar value on success when the goals themselves aren’t purely financial.
Measurement Timeframe
ROI may take years to materialise. An assignee might lay the groundwork for future growth, but the financial payoff only shows later. Companies often measure too soon—during or right after assignment—missing the long-term impact entirely.
Attribution Problem
How do you know that the growth or success was due to the expat versus other factors, such as local market changes, team efforts, or competitor exits? ROI is blurred when multiple drivers are at play, making it impossible to isolate the specific contribution of the assignment.
Retention and Knowledge Loss
An expat leaving the company after the assignment significantly reduces the ROI. Even if they stay, knowledge transfer isn’t always tracked or measured effectively, meaning much of the investment’s value gets lost in the shuffle.
Subjectivity in "Success"
Success may be viewed differently by stakeholders. HR might call it successful if the family settles well and the assignee stays. Finance might consider a project successful if it breaks even. Business units might consider it successful if the local team gains the necessary capability. Without aligned KPIs, ROI feels vague and unconvincing.
In short, it’s hard because the costs are tangible and immediate, while the benefits are often strategic, long-term, and diffused across multiple areas of the business.
Plus, humans can be hard to keep still, especially seasoned expats and emerging Gen Z. Recent global mobility commentary highlights a blazing interest from Gen Z: 62% are actively considering moving abroad, and 87% aspire to be digital nomads.
Is There a Sweet Spot?
If ROI is challenging to measure, then let’s reduce costs, right? No, not always.
You know what a stickler I am for mental health during a relocation—this is where cutting costs can hurt. In my observation, the reductions companies make are usually in areas that significantly affect an assignee’s mental health, such as support with housing, settling-in services, cultural integration, or family assistance. On paper, it may seem like a smart savings move. In reality, it strips away the very support systems that keep an assignee grounded and focused.
If they are not in the right headspace, feel cared for or undervalued, it will reduce their output. Stress over housing, schooling, or adjusting to a new culture doesn’t just affect the individual—it also impacts their family, productivity, and ultimately, the success of the assignment. Cutting corners in these areas may save money upfront, but it creates hidden costs through disengagement, early repatriation, or even assignment failure.
Smart Ways to Reduce Spend Upfront
Reducing your spend upfront is possible, though. You can
- Cut expensive long-term temporary accommodation and replace it with faster permanent housing support.
- Trim unnecessary shipment size and reinvest in cultural training or partner career support.
- Avoid “gold-plated” allowances such as excessive entertainment budgets. Keep essential support that protects productivity.
Let me bring that first point to your attention. Humans are creatures of habit, and outdated policies are still encouraging expats to take at least four weeks in a serviced apartment so they can find a home. What they don’t know is that this practice is taking a toll on the company’s budget and the relocator’s mental health.
For example, here’s a quick comparison of what companies spend when they partner with us for relocation support versus when they handle it alone:
| Without support | With Personnel Relocations | |
|---|---|---|
| Temporary Accommodation | $6,900 (30 nights at $230/night for a family), plus stress and other costs | Not necessary. Homes are secured even before your employee arrives. |
| Car Hire | $200/day, plus fuel, lost productivity, and stress | Not necessary. Suburbs are shortlisted, avoiding aimless searching. |
| Goods Storage | $3,200 (four weeks of storage at $800/week) | Not necessary. Rentals are secured before arrival, so furniture goes straight into the new home. |
| Arrival Status | No address, temporary accommodation, no home comforts, children out of school. | Everything is ready—address secured, hidden costs eliminated, children enrolled in school. |
| Outcomes |
Engagement: Distracted Outlook: Stressed |
Engagement: Positive Outlook: Positive |
| Total Cost to Relocate | At least $10,300 plus employee and family stress | Under $3,000 |
This is not new. We have been providing this support to different corporates for over 10 years now. The process is flawless, and the assignee is job-ready from the moment they step off the aeroplane. Yet companies persist with expensive temporary accommodation because that’s how they’ve always done it.
Rethinking the ROI Question
If we keep asking, “Can we perfectly measure ROI on international assignments?” we’ll keep chasing a number that doesn’t capture the whole picture. The better question is, “Are we investing in the right things to make assignments succeed?”
ROI isn’t found in spreadsheets alone. It lives in the everyday realities of your assignees. Seamless logistics, cultural integration, family support, and mental well-being drive the performance you actually hired them for. On the other hand, legacy perks or outdated policies often add costs without adding value.
Instead of demanding a neat formula, start looking at assignments as part of your broader talent and business strategy. Track outcomes that reflect real impact: stronger teams, new markets opened, knowledge transferred, and talent developed for the long term.
International assignments are fundamentally about people. Get the human elements right, and the financial returns tend to follow. Get them wrong, and no amount of cost-cutting will save your ROI.
