GTN Mobility Tax Blog

Whether you're a US citizen or green card holder living abroad—or supporting employees who are—the US tax system presents unique challenges. Unlike most countries, the United States taxes individuals based on citizenship rather than residency. As a result, US citizens and green card holders must file annual US income tax returns and report worldwide income and gains, no matter where they live or work.

Managing mobility tax obligations is rarely straightforward—especially as workforce models grow more flexible and companies support a variety of cross-border employee scenarios.

That’s why GTN and AIRINC are teaming up to host a three-part webinar series this summer, offering clear, practical guidance on key mobility tax topics. Whether you're focused on day-to-day program management or big-picture planning, these sessions are designed to help HR, mobility, and tax professionals navigate today’s most common mobility challenges with greater confidence.

Tax equalization is a policy widely used by companies with mobile employees. At its core, tax equalization is a mechanism to ensure that an employee is neither better nor worse off financially, from a tax perspective, for having accepted an international assignment. However, there are many misconceptions about what exactly it means to be “tax equalized.” One common misconception is that implementing the policy will automatically result in high company costs and administrative burdens.

Now that the intensity of another US tax season has passed, it’s an opportune time to reflect on your mobility program with a post-tax season check-up. Taking time now to review this past tax season will allow you and your mobility tax provider to discover ways to enhance the employee experience, highlight areas of risk and outline necessary actions, and understand any frustrations that occurred so you can strategize future improvements. To guide you through this review, we’ve created a checklist that includes key considerations and tips for a successful post-tax season review.

The modern workforce is a mobile one and has expanded beyond the traditional short- or long-term assignment. Today, mobility includes a variety of work arrangements such as remote and hybrid work, as well as short-term business travel. This shift has provided greater flexibility in how and where employees work, allowing organizations to access a wider talent pool and operate more efficiently across different locations. However, with increased flexibility comes the challenge of navigating complex reporting and filing requirements to avoid financial, legal, and reputational risks.

The global mobility landscape is continuously evolving, often bringing significant changes that directly impact businesses, mobile employees, and the broader mobility industry. In our recent webinar, we explored key legislative, economic, and policy developments that could shape mobility programs in the months ahead. With new regulations taking effect and additional proposals on the horizon, staying informed is crucial for strategic planning.