GTN Mobility Tax Blog

For employers with mobile and cross-border employees, year-end US payroll involves more than reviewing wages paid through the US payroll system. Employees may have worked in multiple states or countries, received payments through overseas payroll, or received relocation benefits and equity compensation that require additional review.

Bringing this information together before the final payroll run gives mobility and payroll teams time to identify reporting gaps, reconcile compensation, and address withholding requirements. It also requires coordination with HR, finance, and service providers to capture payments and benefits that may sit outside payroll’s day-to-day view.

For high-net-worth families, transferring wealth to the next generation requires careful planning. In the United States, estate and gift taxes apply to certain transfers of wealth made during life or at death. While recent legislative changes have increased the amount individuals can transfer without federal tax, the rules remain complex, particularly for families with international connections.

Equity income is a key compensation component as organizations seek to attract, motivate, and retain talent. Stock options, restricted stock units, and other equity-based awards are designed to align employee interests with long-term business performance and are increasingly offered to a broad range of roles and geographies.

At the same time, the way (and where) employees work has changed. Remote and hybrid arrangements, short-term business travel, and cross-border assignments mean that equity awards are often no longer easily attributable to a single location. This creates employer and employee challenges.

Are you satisfied with the responsiveness of your current global mobility tax provider? Do you have access to seasoned professionals who deliver practical, actionable guidance? Are you receiving timely communication and clear visibility into your mobility program? If you answered “no” to any of these questions, it may be time to evaluate whether your current provider is still the right fit for your organization.

Global mobility programs are complex, and with complexity comes questions. Whether you’re managing a few mobile employees or a large, international program, understanding how global mobility tax works, and how GTN supports you along the way, can make all the difference.

This guide addresses two key areas:

1. Mobility tax questions that impact HR and mobility professionals every day.
2. Questions about GTN and how we partner with clients worldwide.

Global mobility is constantly evolving, and HR and mobility leaders often find themselves balancing competing priorities all at once. Tax compliance, payroll coordination, executive travel, equity issues, and remote work oversight all demand attention. And each comes with its own layer of complexity. Amid all the chaos, certain questions consistently rise to the surface as teams look for clarity, alignment, and practical direction.

In this article, we’ve highlighted the top 10 questions HR and mobility professionals asked most often in 2025, along with clear explanations and resources to help guide your planning for the year ahead.