US Tax Advisory
Specialized US tax advisory for globally mobile employees — ensuring compliance in both home and host countries.
Tax Services
Each global assignment in the platform automatically generates the required tax service checklist based on home-host country pair.
Social security totalization agreement certificates to prevent dual contributions and protect employee benefits across jurisdictions.
Filing and compliance for the assignee's home country tax obligations throughout the duration of the assignment.
Host country income tax registration, filing, and compliance management aligned with local regulations.
Maintaining social security contributions and entitlements in the home country during international assignments.
Managing host country social security obligations, exemptions, and coordination with bilateral agreements.
Pre-departure and arrival tax briefings for assignees — covering obligations, timelines, and documentation for both jurisdictions.
Home and host country tax residency documentation for treaty benefit claims and dual-taxation prevention.
Hypothetical tax calculations and equalization adjustments ensuring assignees are no better or worse off due to the assignment.
Consolidated year-end tax reporting, shadow payroll reconciliation, and audit-ready documentation across jurisdictions.
Compliance Areas
Our US tax advisory covers the full spectrum of cross-border tax complexity.
Comprehensive individual tax compliance for US inbound and outbound assignees.
Ensuring corporate compliance with US tax obligations for international assignees.
Strategic tax planning leveraging bilateral treaties and international tax law.
Cross-border treatment of equity awards and complex compensation structures.
Why MobilitySQR
Three reasons global mobility teams choose us for US tax.
Every tax service is tracked in the platform with vendor assignments, target dates, and real-time status — not buried in email threads.
Tax services are part of the complete mobility lifecycle — connected to immigration, relocation, and expense data in one platform.
Founded by a leader with PwC and Deloitte heritage, our advisory team brings Big Four rigor to every engagement.
Get Started
Connect with our US tax advisory team to discuss your global mobility tax challenges.
Schedule a Consultation