Global Mobility Tax Specialist

Job Title

Global Mobility Tax Specialist

The Global Mobility Tax Specialist will be responsible for guidance related to the Fiserv Global Mobility Program as it pertains to tax impacts to assignees. A truly global role requiring knowledge of international taxation across the globe. This role reports to the VP of HR Operations, Global Mobility and Payroll and partners closely with the Immigration Manager, Immigration Advisors, and a third‑party tax provider.

• Prepare, review, and deliver tax‑related documentation for globally mobile employees in partnership with third‑party vendors within established deadlines.
• Provide guidance to employees on tax equalization and tax protection policies to support understanding, issue resolution, and compliance with assignment requirements.
• Partner with payroll teams to support tax withholding, shadow payroll, and reporting obligations related to international assignments across multiple jurisdictions.
• Maintain accurate assignment rosters, tax records, and supporting documentation to ensure compliance with global tax regulations and internal controls.
• Act as a liaison between internal stakeholders—including corporate tax, payroll, executive compensation, and external vendors—to resolve tax‑related questions and processing issues.
• Monitor developments in international tax regulations and mobility practices and update procedures, documentation, and guidance as needed.
• Support vendor management activities, including billing coordination, performance tracking, and validation of tax service deliverables.
• Create and maintain standard operating procedures and provide backup support for relocation activities as needed.
• Responsibilities listed are not intended to be all‑inclusive and may be modified as necessary.

• 4+ years of experience in global mobility tax, international tax compliance, or expatriate payroll administration, including foreign tax compliance, hypothetical tax calculations, shadow payroll, and tax equalization processes.
• 4+ years of experience working with multi‑state and international tax regulations across multiple jurisdictions.
• 4+ years of experience partnering with payroll, tax, immigration, human resources, and third‑party vendors to support globally mobile employees.
• Experience using Human Resources Information Systems, payroll platforms, mobility systems, or similar enterprise tools to manage employee data, assignment records, and tax‑related processes.
• Bachelor's degree in accounting, tax, finance, business, human resources, or a related field, or equivalent combination of education, related experience and/or military experience.

• Certified Relocation Professional (CRP) or Global Mobility Specialist (GMS) certification, or equivalent related certification.
• Experience supporting payroll tax coordination across Asia‑Pacific (APAC), Latin America (LATAM), and Europe, Middle East, and Africa (EMEA).
• Proficiency with global mobility platforms and case management workflows.
• Experience supporting relocation programs or broader global mobility operations.

• This role is on‑site Monday through Friday. In‑person collaboration is an essential part of this role to facilitate onboarding and productivity.

You must currently possess valid and unrestricted U.S. work authorization to be considered for this role. Candidates requiring sponsorship, now or in the future, are not eligible.

• Fuel Your Life program to support your physical, financial, social, and emotional well‑being.
• Paid holidays and generous time‑away policies.
• No‑cost mental health support through Employee Assistance Programs.
• Living Proof program to recognize peers’ extra effort with points redeemable for rewards.
• Eight Employee Resource Groups to foster a collaborative culture and expand your network.
• Unparalleled professional growth with training, development, and internal mobility opportunities.
• Medical, dental, vision, life, and disability insurance options available from day one.
• Retirement planning including 401(k) match and discounted shares with the Employee Stock Purchase Plan.
• Tu…