You want to second employees abroad or hire international talent. But every border crossing raises many questions?

  • Tax liability, social security, immigration permits, and payroll – every detail matters
  • Mistakes are costly: double taxation, compliance breaches, and issues with authorities
  • Your people should be protected and your company seen as a reliable employer

The good news: we make it simple.

The solution: Personal. Transparent. Dependable.

The solution: Personal. Transparent. Dependable.

Extensive expertise
in tax law, social security, immigration, and payroll
Advisory
on remote work, freelancing, and hybrid work models
A single point of contact
for all countries
Contracts and policies
Drafting legally compliant secondment contracts and policies

    With Grant Thornton Global Mobility Services, we support you through every phase of international assignments – from planning to repatriation.

    You focus on your business. We handle the rest.

    Here’s what we do for you

    • Design and implement global mobility strategies
    • Alignment of internal processes and policies
    • Advisory on remote work, freelancing, and hybrid models
    • Status determination (tax and social security)
    • Advisory at the start, during, and at the end of the assignment
    • Preparation of income tax returns
    • Assessments
    • Cross‑border payroll including shadow payroll
    • Tax equalization calculations
    • Hypotax calculations & cost projections
    • Consulting on benefits in kind (e.g., compensation, pension, social security)
    • Advice on and applications for work and residence permits
    • Communication with authorities in the home and host countries
    • Compliance with local registration requirements and statutory deadlines
    • Proactive adherence to national and international laws
    • Managing global tax risks
    • Evaluating permanent establishment risks and implications
    • Document storage & status overview via the Assignment Pro platform
    • Multi‑country coordination via a single point of contact
    International assignments do not have to be complicated. We make them safe, transparent, and compliant.
    Julia Saric-Bischof Head of Global Mobility Services

    Your benefits at a glance

    What you gain

    One-Stop-Shop 

    for assignment management, tax, payroll and immigration

    Solutions

    tailored to your business

    A single point of contact

    who speaks your language

    Fact Sheet
    Global Mobility Services

    Fact Sheet

    Everything you need to know about our services 

    Download PDF [148 KB]

    Useful ressources

    Ressource Link
    Global Expatriate Tax Guide Austria
    Download PDF [1706kb]
    Global Expatriate Tax Guide all countries
    country‑specific guides to chose from
    Guides on Grant Thornton Global
    Global Mobility Services-Hub international
    articles on tax changes and market trends around international assignments
    Global talent mobility hub

    Why Grant Thornton

    With us, you'll experience a simpler, smarter way to manage global mobility.
    1.

    Deep technical expertise & practical, actionable solutions

    2.

    Global reach and local insight across 150+ countries

    3.

    Tailored advice that fits your unique needs

    Your Questions, our Answers
    FAQ

    Your Questions, our Answers

    Answers to the most frequently asked questions about assignments, taxation and immigration law

      Current global mobility articles

      More articles
      Tax Residency: Basics, International Regulations, and Recent Case Law
      Blog.GMS

      Tax Residency: Basics, International Regulations, and Recent Case Law

      Where am I considered as tax resident? The question of tax residency is the decisive factor of taxation. It determines both national and international taxing rights and thus defines in which country an individual must pay tax on their worldwide income.
      4 min read | 21 Oct 2025
      Teleworking - State of the art in 15 countries
      Blog.GMS

      Teleworking - State of the art in 15 countries

      The pandemic has turned teleworking from a necessity into a permanent part of the labor market, valued by both employees and employers.The white paper deals with the regulations during the pandemic and also the current regulations after the pandemic for teleworking. It allows you to discover similarities and differences in the national regulations.
      Julia Saric-Bischof
      Julia Saric-Bischof
      | Less than a minute | 25 Sep 2024
      Act to Combat Wage and Social Dumping: Why the appointment of authorised representatives is important
      Blog.GMS

      Act to Combat Wage and Social Dumping: Why the appointment of authorised representatives is important

      Many companies underestimate the importance of the Wage and Social Dumping Prevention Act (LSD-BG) in Austria and the associated penalties. Even though it is not a new regulation, there are still considerable misunderstandings about the importance of appointing a responsible officer.
      Julia Saric-Bischof
      Julia Saric-Bischof
      | 4 min read | 24 Jun 2024
        More articles

        Your prime contacts

        Julia Saric-Bischof

        Julia Saric-Bischof

        Senior Manager
        Vienna
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        Christoph Schmidl

        Christoph Schmidl

        Partner
        Vienna
        View full profile