Financial planning for Iranian nationals — whether living in Iran, residing abroad as part of the Iranian diaspora, or dual nationals navigating complex cross-border obligations — requires specialist expertise that extends well beyond conventional wealth management. The combination of comprehensive US and EU sanctions, a severely constrained Iranian banking system, a volatile domestic currency, and the unique compliance obligations facing individuals with Iranian connections makes this one of the most demanding areas of international financial planning.

This guide is intended primarily for Iranian nationals residing in the UK, British nationals with Iranian family connections, and internationally mobile HNW individuals with assets or family interests in Iran.

This guide is for general information only. The sanctions environment and Iranian domestic law are subject to rapid change. Financial decisions involving Iran-connected assets require specialist legal, compliance, and tax advice. Global Investments does not advise on transactions that would violate applicable sanctions laws.

The Sanctions Environment: The Primary Constraint

Before considering tax planning, investment, or wealth management for Iran-connected individuals, the sanctions landscape must be understood. It is the dominant constraint on all financial activity involving Iran.

US sanctions (OFAC): The Office of Foreign Assets Control administers comprehensive Iran sanctions that apply to US persons (US citizens, US green card holders, US companies) regardless of where they are located, and to all transactions involving the US financial system, US-dollar clearing, or US persons. US sanctions on Iran are among the most comprehensive in the world and include:

Prohibitions on virtually all trade and financial transactions with Iran
OFAC licensing requirements for even humanitarian activities
Secondary sanctions that can affect non-US entities doing business with Iran

EU sanctions: EU sanctions on Iran target nuclear programme-related entities and individuals, as well as human rights concerns. These are narrower in scope than US sanctions.

UK sanctions: Following Brexit, the UK maintains its own sanctions regime, generally aligned with EU measures plus some additional UK-specific designations.

Practical implications for financial services: Most mainstream UK, European, and international banks apply conservative compliance postures on Iran-related transactions. Opening bank accounts, transferring funds to or from Iran, and investing in Iranian assets are all areas requiring careful compliance review. Many UK banks refuse to serve Iranian nationals at the retail level, citing compliance complexity.

Domestic Iranian Tax System

For context, the domestic Iranian tax framework is as follows:

Personal income tax: Applies progressively to employment and business income:

0% on the first IRR equivalent of approximately USD 12,000–15,000 (the exemption threshold changes frequently with inflation)
10–35% on income above the threshold

Capital gains tax: Gains from the sale of listed shares on the Tehran Stock Exchange are exempt. Gains from property transfers are subject to a transfer tax rather than a CGT in the conventional sense.

Inheritance tax: Iran levies inheritance tax on estate transfers at rates dependent on the relationship:

Spouses, children, parents: 3–10%
More distant relatives and third parties: 8–35%
Cash and bank deposits: exempt for immediate family

No personal wealth tax applies in the conventional sense.

The practical relevance of Iranian domestic taxes for UK-resident Iranian nationals is limited — their principal compliance obligations are to HMRC, not the Iranian Revenue Service (Sazman-e-Omour-e-Maleyati). However, those who still hold assets in Iran, receive remittances from Iranian family, or have retained links with Iranian businesses may have Iranian tax obligations that interact with UK reporting.

UK Tax Obligations for UK-Resident Iranian Nationals

Iranian nationals who are UK tax residents are taxed by HMRC on their worldwide income under the UK's standard framework:

Following the abolition of the remittance basis and the non-dom regime from 6 April 2025, UK residents are taxed on worldwide income and gains as they arise. New arrivers who have been non-UK-resident for the previous ten tax years may claim relief under the four-year Foreign Income and Gains (FIG) regime; after that four-year period, worldwide income and gains are taxable on the arising basis regardless of domicile.
Remittances from Iran (bank transfers, cash brought into the UK, funds paying UK costs) are therefore generally assessable on the arising basis. The historic remittance basis is no longer available for tax years from 2025/26 onwards.
Iranian-source income that cannot be transferred to the UK due to sanctions or banking restrictions presents a genuine challenge — individuals who are taxable on arising income but cannot access it need specialist advice on HMRC's treatment of "trapped" income.

The UK–Iran Double Tax Agreement is limited in scope and largely outdated; it does not provide comprehensive relief for common scenarios facing UK-resident Iranian nationals.

Offshore Wealth Management: Essential for HNW Iranian Families

For HNW Iranian families — whether based in Iran, the UK, or elsewhere — offshore wealth management is not a planning option but a practical necessity. The combination of:

Iranian currency (IRR) extreme depreciation (the IRR has lost approximately 98% of its value against the USD since 2011)
Banking system accessibility constraints due to sanctions
Domestic capital controls (Iran restricts the export of capital above certain thresholds)
Political and economic uncertainty

...means that preserving wealth in USD, EUR, or GBP-denominated assets outside Iran is widely regarded as essential for any family with meaningful assets.

Common offshore structures used by Iranian HNW families include:

Offshore investment accounts in the UAE (Dubai or Abu Dhabi), where a significant Iranian diaspora community has banking relationships
Isle of Man, Guernsey, or Cayman Islands investment holdings for larger portfolios
UK property as a store of value (London property ownership by Iranian diaspora is historically significant)
Turkish real estate: Turkey (not subject to Iran sanctions as Turkey is not an OFAC jurisdiction) has been a popular destination for Iranian property investment, including citizenship-by-investment
Family trusts in jurisdictions with stable legal systems (Cayman, BVI, Jersey) for succession planning and asset protection

Cross-Border Estate Planning

Succession planning for Iranian families with cross-border assets requires attention to multiple overlapping legal systems:

Iranian succession law: Applies Sharia principles to Muslim decedents. Non-Muslim Iranians may be subject to different rules. Inheritance of Iranian-sited assets by non-Iranian or non-Muslim heirs can be legally complex and practically difficult.

UK succession law: UK-sited assets of UK residents are governed by UK succession law (primarily for moveable assets, the Wills Act 1837; immoveable assets follow the lex situs). For UK-resident Iranian nationals, a properly executed UK will is essential.

Conflict of laws: Where an Iranian national holds assets in multiple jurisdictions, succession may be subject to conflict of laws rules — different rules apply to different asset types in different countries. Multi-jurisdictional wills (separate wills for each jurisdiction) are commonly recommended.

FATF grey listing: Iran has been on the FATF (Financial Action Task Force) grey or blacklist for many years. This affects correspondent banking relationships, fund transfers, and the willingness of financial institutions to maintain accounts for Iran-connected individuals. Some Iranian nationals face disproportionate compliance scrutiny when establishing banking relationships in the UK and Europe.

Investment Considerations for UK-Based Iranian Nationals

UK-resident Iranian nationals with investment portfolios face particular considerations:

Source of funds documentation: UK financial institutions typically require robust source-of-wealth and source-of-funds documentation. Assets originating from Iran require clear paper trails documenting their provenance as legitimately earned (property sales, business proceeds, etc.) rather than sanctions-evasion proceeds.

Iranian bank account reporting: UK residents with Iranian bank accounts (or interests in Iranian accounts through family arrangements) may have CRS reporting obligations. Iran is not yet a CRS signatory as of 2026 but UK reporting obligations may apply to Iranian accounts under HMRC's domestic rules.

Farhangian-type diaspora investment schemes: Periodically, Iran offers diaspora investment bonds or similar instruments. These must be assessed carefully for UK sanctions compliance before participation.

Practical Financial Planning Tips

Address UK compliance first: For UK-resident Iranian nationals, the priority is ensuring UK tax compliance — annual returns, declaration of overseas income, and source-of-funds documentation for existing assets.
Offshore structure review: Review any existing offshore structures involving Iranian connections for sanctions compliance — particularly any structures involving Iranian passports, Iranian bank accounts, or transfers from Iran.
Currency diversification is non-negotiable: Never hold significant wealth in IRR-denominated assets if you have any ability to diversify. The IRR track record of value preservation is extremely poor.
Multi-jurisdictional wills: Prepare wills separately for UK assets, UAE assets, and Iranian assets (if any). Ensure family members understand which will governs which assets.
FATF/AML compliance: Work with a UK-regulated financial adviser who understands the AML obligations and source-of-wealth documentation requirements. Doing so proactively makes banking and investment relationships far smoother.
Dual nationality considerations: Iran does not formally recognise dual nationality. British-Iranian dual nationals should be aware of the consular and travel implications of this position.
Engage specialist advisers: This is an area where generalist financial advisers are ill-equipped. Seek advisers with specific experience in Iran-connected families and familiarity with OFAC, UK sanctions, and cross-border succession law.

A Note on Practical Limitations

This guide has addressed the planning framework for Iran-connected individuals in general terms. We want to be transparent with clients: Global Investments does not facilitate transactions that could constitute sanctions violations under UK, EU, or US law. Any activity involving direct financial flows to or from Iran requires specific legal assessment of sanctions applicability.

Where clients have Iran-connected assets or interests, we focus on:

UK-side compliance and tax planning
Offshore portfolio management for non-Iranian assets
Cross-border estate planning for assets held in permissible jurisdictions
Introductions to specialist legal advisers for Iran-specific legal matters

How Global Investments Can Help

We have experience advising British nationals of Iranian heritage and Iranian nationals resident in the UK on the complexities of their cross-border financial situations. This includes UK tax planning, offshore investment portfolio structuring, estate planning for multi-jurisdictional families, and source-of-funds documentation.

We work with specialist international law firms where Iranian legal questions, sanctions analysis, or specific cross-border succession matters arise. Our approach is to be genuinely useful within the boundaries of compliant practice — helping clients bring order and proper planning to what is often a highly complex family financial situation.

We do not offer services that would contravene UK sanctions law. We do offer a thoughtful, compliant, and effective advisory service for the many planning issues that legitimately arise for Iran-connected families.

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.

Financial Planning for Iranian Nationals and Expatriates: A Specialist Guide