04 Noah Mobility Services

Taxation

Cross-border assignments create complex tax obligations for both employees and employers. We ensure full compliance, fair outcomes, and zero surprises.

Taxation
Overview

Cross-Border Taxation and Compliance for International Assignments

When employees move across borders, tax obligations multiply rapidly. Home-country and host-country taxes must be reconciled, social security agreements navigated, and benefit-in-kind arrangements properly structured.

Noah Mobility taxation advisory services help companies and their employees manage cross-border tax requirements with confidence, working with qualified tax professionals in each jurisdiction.

From tax equalisation policy design to shadow payroll and annual tax return support, we provide a complete framework protecting both employer compliance and employee take-home position.

40+

Tax Jurisdictions

100%

Compliance Rate

15+

Years Advisory

What We Offer

Taxation Services for the Full Assignment Lifecycle

Tax Equalisation

Design and administration of tax equalisation policies ensuring employees are neither better nor worse off.

Tax Return Preparation

Home-country and host-country tax return preparation and filing for internationally mobile employees.

Shadow Payroll

Shadow payroll administration ensuring correct withholding tax and social security contributions.

Social Security

Navigation of bilateral social security agreements and totalization treaty planning.

Compliance Review

Annual compliance health checks covering withholding obligations and employment tax exposure.

Cost Projections

Pre-assignment tax cost modelling to help HR teams budget accurately for international assignments.

Process

How It Works

Our streamlined process ensures a smooth experience for both HR teams and employees throughout every step of the journey.

1

Pre-Assignment Assessment

We model the tax position for home and host country before the assignment starts.

2

Policy Alignment

We review or design the company tax equalisation policy.

3

Year-Round Administration

Monthly shadow payroll and ongoing compliance monitoring throughout the assignment.

4

Annual Tax Filing

Preparation and filing of home and host country tax returns.

5

Assignment End Settlement

Final tax reconciliation and repatriation tax planning at the end of the assignment.

Why Choose Us

Why Noah Mobility for Taxation?

Qualified in Each Jurisdiction

We work with certified tax professionals in every country ensuring locally accurate, legally sound advice.

Integrated Cost Visibility

All tax costs are visible in ARK ONE giving HR real-time budget tracking.

Employee-Centric Approach

We brief assignees clearly on their personal tax position so there are no surprises.

Policy Design Expertise

We help companies design fair, competitive, and cost-efficient tax policies.

Powered by ARK ONE

All our services are integrated with the ARK ONE platform — giving HR teams full visibility, real-time tracking, and a single source of truth for every case.

  • Real-time progress tracking
  • Automated task notifications
  • Centralised document management
  • Expert consultant matching
Learn about ARK ONE

Ready to simplify your Taxation process?

Let Noah Mobility handle the complexity while you focus on your people. Book a free demo today.