A single failed international assignment can cost up to USD 1.25 million once compensation, relocation expenses, ongoing assignment support, tax implications, and replacement costs are combined, according to research conducted for International SOS. Direct relocation expenses alone typically range from $100,000 to $250,000 per assignment, with failures pushing the total into seven figures in some cases.
What the Data Shows
The most striking figure isn't the cost — it's the cause. 64% of failed international assignments trace back to family maladjustment rather than the assignee's job performance. The assignment itself, professionally, is usually going fine when it fails; what breaks is the life built around it.
The upside case makes the downside more costly by comparison. Organisations see an 85% ROI gain if a relocated employee stays just one year, rising to 270% by the end of year two — against mean relocation costs of roughly $26,260 versus perceived annual financial benefits of around $48,660. The gap between a successful assignment's return and a failed one's cost is enormous, and it's determined largely by factors mobility teams can actually influence.
What This Means for HR and Mobility Teams
If family maladjustment drives nearly two-thirds of failures, then assignment planning that focuses only on the employee — visa status, tax structuring, job scope — is solving less than half the problem. Spouse employment support, school placement, healthcare access, and genuine settling-in support for the whole household are not "nice to have" additions to a relocation package; they're the variables most correlated with whether the assignment succeeds at all.
Cost modelling that treats relocation spend as the main budget line is also incomplete. The real financial risk sits in the replacement cost, repatriation cost, and lost productivity of a failed assignment — all of which dwarf the incremental cost of proper settling-in support.
Action Steps
- Budget explicit settling-in support — housing, schools, healthcare registration, local orientation — as risk mitigation, not a perk.
- Assess family readiness and spousal/partner employment prospects before finalising an assignment, not after acceptance.
- Track assignment success against the one-year and two-year ROI inflection points to justify settling-in investment with real numbers.
- Build a repatriation and contingency plan before departure, so a struggling assignment can be corrected early rather than abandoned late.
xpath.global's relocation and settling-in specialists support the whole household — home search, school placement, healthcare registration, banking, and local orientation — addressing the family-side risk factors that drive most assignment failures, alongside the visa and tax work that gets an assignee there in the first place. [See how our relocation support works.](https://xpath.global)
"Sources: International SOS / Relocate Magazine — 2024-2026; Asiatic International Relocation — 2026."
