The Marshall Islands (Republic of the Marshall Islands, or RMI) is a sovereign Pacific island nation in free association with the United States. It occupies a distinctive niche in international financial planning: its corporate registry is one of the world's largest (used extensively for ship registration and offshore companies), it has no personal income tax on foreign-source income, and its legal system is based on US common law. For certain HNW individuals — particularly those with US ties, maritime interests, or seeking Pacific corporate structuring — the Marshall Islands warrants careful analysis.
Political and Legal Context
The Marshall Islands is an independent sovereign state but has a Compact of Free Association with the United States. Under the Compact, Marshallese citizens may live and work in the US, and the US provides defence and financial assistance. The RMI uses the US Dollar (USD) as its official currency. Its legal system is based on US common law, which provides familiarity for common law practitioners advising on corporate structures.
The RMI operates a significant Marshall Islands ship registry — one of the world's top three by tonnage — and a large offshore company registry administered by the Associations Law of 1990. These two registries generate substantial government revenue and underpin the jurisdiction's financial services sector.
Tax Residency Rules
The RMI has a relatively limited domestic income tax framework. For residents:
- Gross Revenue Tax applies to business income at low rates (2–3% on gross revenue of local businesses)
- Wages and Salaries Tax applies to employment income earned in the RMI: 8% on the first USD 10,400 of annual earnings and 12% above that
- Foreign-source income is not taxed for residents — this is a critical advantage
There is no DTA between the Marshall Islands and the UK. British nationals establishing residence in the Marshall Islands must manage their UK SRT position independently. Given the remote Pacific location and limited professional services infrastructure, the Marshall Islands is not a conventional expat destination; most international individuals in the RMI are maritime professionals, US military and government employees, or business owners with specific maritime/corporate interests.
Income Tax on Residents
The domestic income tax on wages and salaries is modest by OECD standards:
- Up to USD 10,400: 8%
- Above USD 10,400: 12%
For HNW individuals living on investment income from overseas, the effective local tax rate will be nil (foreign-source income is exempt). Only income earned locally is subject to Marshallese tax.
Capital Gains Tax
The Marshall Islands does not impose a capital gains tax.
Inheritance and Estate Tax
There is no inheritance or estate tax in the Marshall Islands.
Wealth Tax
No annual wealth tax exists.
Corporate and Offshore Structures
The Marshall Islands is primarily known internationally for its offshore corporate structures rather than personal tax residency:
- Marshall Islands LLCs and Corporations: widely used for holding companies, ship-owning entities, and operating businesses. The non-resident domestic corporation (NRDC) and the Marshall Islands LLC are popular for their flexibility, low costs, and US common law framework.
- Ship Registry: Vessels registered in the Marshall Islands fly the "flag of convenience" and benefit from competitive registry fees and a reputable (by open-registry standards) regulatory environment.
- No annual return requirements for offshore entities in certain structures — though economic substance requirements and FATF compliance obligations have increased in recent years.
British individuals using Marshall Islands corporate structures should ensure compliance with UK anti-avoidance legislation (Transfer of Assets Abroad, CFC rules) and that any such structures are properly disclosed to HMRC. The Marshall Islands participates in the OECD Common Reporting Standard (CRS), so financial accounts are reported to relevant tax authorities.
UK Pension Implications
No DTA exists between the Marshall Islands and UK. UK State Pension paid to recipients in the Marshall Islands will be frozen at the rate applicable when first claimed or when the individual relocated. No annual uprating will be received.
UK private pension income drawn by Marshall Islands residents is subject to UK income tax at source (basic rate withholding, claimable back if income is within the personal allowance). Specialist pension planning advice is important.
QROPS: No QROPS schemes are registered in the Marshall Islands. The 25% overseas transfer charge would apply to any QROPS transfer without an applicable exemption.
Banking Environment
The RMI's banking sector is extremely limited. The Bank of Marshall Islands is the primary domestic institution. For HNW private banking, investment management, and asset custody, individuals maintain accounts in the US, Australia, or Singapore. The USD currency eliminates exchange rate risk for dollar-denominated investors.
The RMI is FATCA-compliant (as a US-associated territory) and participates in CRS. International financial accounts are reported to appropriate authorities.
Investment Climate
The Marshall Islands economy is heavily dependent on US Compact funding, fishing licence fees (tuna), and the ship/company registry revenues. There is minimal private sector investment opportunity for an internationally mobile HNW individual beyond:
- Ship registry and maritime services: for those in the shipping industry
- Real estate: limited formal market; foreigners may face restrictions on land ownership (much land is customary communal land)
- Company formations: legal/trust services related to offshore structures
The RMI faces existential climate risk — many of its 29 atolls are barely above sea level and are acutely vulnerable to rising seas and increased storm intensity. This is a material long-term consideration for any property investment or long-term relocation planning.
Cost of Living Context
The cost of living in Majuro (the capital) and Ebeye is moderate to high by Pacific island standards, driven by import costs and the remote location. Consumer goods, building materials, and professional services all carry significant import premiums. Medical facilities are basic; serious medical conditions require evacuation to Hawaii or Guam.
Social Security
The Marshall Islands has a limited Social Security system for domestic employees. There is no reciprocal agreement with the UK. Marshallese NI contributions do not aggregate with UK NI records.
Key Compliance Issues for Expats
UK SRT management: Remote location makes SRT compliance relatively straightforward for British nationals who genuinely relocate, but HMRC will scrutinise claims where no compelling economic reason for the move exists.
UK anti-avoidance: Marshall Islands companies used for income diversion may be caught by Transfer of Assets Abroad legislation or UK CFC rules. UK residents must not use offshore corporate structures as a mechanism to avoid UK income tax.
Climate risk disclosure: For professional or business purposes (investment management, fiduciary roles), the RMI's acute climate vulnerability may be a material risk disclosure point.
Practical Financial Planning Tips
The Marshall Islands suits specific use cases: maritime professionals, ship owners, and offshore corporate users have genuine planning reasons to consider this jurisdiction. For most HNW individuals, better-resourced low-tax jurisdictions (Cayman, BVI, Singapore) provide superior infrastructure.
Climate risk is existential: Long-term property investment or permanent relocation planning must account for the Marshall Islands' extreme vulnerability to climate change and sea level rise.
Structure offshore companies carefully: Marshall Islands entities must comply with economic substance rules (where applicable), CRS, and UK anti-avoidance legislation. Using a Marshall Islands entity purely to divert income away from the UK without genuine economic substance will not succeed.
USD base: The dollar currency eliminates one layer of complexity for US-dollar-denominated investors.
All information reflects the position as understood in 2026. Rules change; seek current professional advice.
How Global Investments Can Help
Global Investments advises on international structuring, offshore corporate planning, and UK tax compliance for maritime and Pacific business interests. Contact our team to discuss whether the Marshall Islands fits your specific planning objectives.
This guide is for general information only and does not constitute financial advice or a personal recommendation. The value of investments can fall as well as rise and you may get back less than you invest. Tax rules, pension legislation, and investment regulations change — always verify current rules and seek advice from a qualified independent financial adviser before making any financial decisions.