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Supporting Seamless Relocation from the UK to US: A Case Study

Supporting Seamless Relocation from the UK to US

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Navigating Complexities of Cross-Border Expansion

A fast-scaling SaaS company with a UK-based founder had ambitious plans to expand internationally. In early 2023, the business set its sights on the US market, establishing a subsidiary and relocating key team members to support sales and operations. With a strong product-market fit and growing traction, the company aimed to build a local team, win customers and position itself for long-term success.

As the company expanded into the US, it faced a range of challenges—from tax implications of relocating senior personnel to restructuring employee equity plans for cross-border compliance. The founder’s personal move to the US, along with the relocation of sales and leadership teams, required careful planning to avoid tax inefficiencies and ensure regulatory compliance.

FD’s Approach

FD provided a holistic, end-to-end advisory service covering both personal and corporate needs, ensuring a smooth transition and long-term readiness for US operations.

Global Mobility & Personal Tax Advisory

  • Founder Relocation: Advised on the UK-to-US move, including payroll transition, tax residency changes and implications for family relocation.
  • Tax Filings & Compliance: Supported annual UK and US tax filings, avoiding double taxation and ensuring compliance with personal reporting, mitigating the risk of IRS penalties.
  • Secondary Share Sale: Provided strategic advice on the secondary sale of founder shares ensuring tax efficiency and compliance.
  • Personal Wealth Planning: Guided the founder on tax efficient US and UK personal investments across both jurisdictions.
  • Exit Planning: Provided upfront advisory on potential exit scenarios for the founder and they tax implications, so they could strategically plan their future exit/sale of the business.

Employee Equity Optimization

  • Pre-Relocation Planning: Reviewed existing UK EMI options and advised employees on exercising vested options before relocation to avoid US tax exposure.
  • Post-Relocation Restructuring: Swapped EMI options for ISO stock options where appropriate, ensuring alignment with US tax rules.
  • 409A Valuations: Supported the company in obtaining accurate 409A valuations to underpin US equity grants.
  • Cross-Border Equity Strategy: Delivered a unified UK-US equity strategy that balanced tax efficiency with employee incentives.

The Outcome

With FD’s guidance, the company achieved a seamless transition for the founder and key team members on a tight timeline. Proactive planning minimized tax liabilities and ensured compliance with both UK and US tax authorities, reducing risk and administrative burden. Just as importantly, the company emerged with a scalable structure that positioned it for sustainable US growth, supported by a compliant and efficient operational framework.

Looking Ahead

We continue to support the company’s expansion journey—ensuring every move is tax-smart, compliant and aligned with long-term growth goals.

Are you thinking of relocating your management team to the US? Whether you’re relocating a founder, building a team or restructuring equity, we’re here to help you navigate every step with confidence. Get in touch today.

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