Cross-Border
Tax Planning
Clarity for Your Global Footprint
When you live, work, or invest internationally, you trigger deeply complex compliance obligations. The IRS and HMRC operate on fundamentally different principles. A tax-advantaged wrapper in the UK (like an ISA) may be considered a punitive PFIC in the US.
Our dual-qualified advisors bridge this gap. We provide a single point of strategic contact, applying tax treaties effectively to shield your wealth from double taxation, while ensuring aggressive compliance with offshore disclosure rules.
Treaty Analysis
Applying bilateral treaties to prevent duplicate taxation on the same income streams, from corporate dividends to personal pensions.
Global Mobility
Pre-immigration planning for individuals moving stateside, and expatriation counsel for Americans relocating to the UK.

Expansion Structuring
Evaluating branches versus subsidiaries for inward UK/US investments, considering Subpart F and GILTI rules.
PFIC Mitigation
Steering US taxpayers clear of passive foreign investment companies (like UK mutual funds) to avoid punitive tax and interest charges.
Our Strategy
CAPABILITIESTax Treaty Navigation
Strategic application of the US-UK Double Taxation Treaty and Totalization Agreement to prevent double assessment of income, capital gains, and social security taxes.

Entity Jurisdictional Structuring
Analyzing foreign tax credits (FTCs), controlled foreign corporations (CFCs), and PFICs to determine the optimal entity type for cross-border expansion or investment.

Repatriation of Profits
Advising on the most favorable tax mechanisms to extract and repatriate capital from a foreign subsidiary back to the mother company or individual shareholders.

Global Mobility & Secondments
Comprehensive tax and payroll planning for executives relocating internationally, aligning visa parameters with domestic residence tests to neutralize unexpected liabilities.

Our Approach
Bilateral Exposure Assessment
Treaty Claim Optimization
Structural Implementation
Unified Global Filing
Seamlessly handling your reporting obligations in both countries, ensuring that a decision in one jurisdiction does not unwittingly trigger a penalty in the other.
Specialist Advisors for
Global Operations
Operating across borders without a unified tax strategy guarantees friction. Overpaid taxes, locked capital, and debilitating IRS/HMRC inquiries are the hallmarks of a disjointed advisory approach.
Jungle Tax eliminates this friction. We look at your global picture holistically. By deeply understanding the mechanics of dual-jurisdiction taxation, we create seamless financial architectures that allow wealth and enterprise to cross borders effortlessly.
We believe in pre-emptive action. We do not just react to legislation; we analyze your trajectory to ensure your international moves are executed with supreme tax efficiency from day one.
Double Tax Avoidance
Fiercely protecting your margins by leveraging complex treaty negotiations.
Dual-Qualified
Expertise in both US and UK tax codes within a single, cohesive team.
Asset Protection
Shielding international portfolios from punitive regimes like PFIC taxation.
Expansion Agility
Providing the tax clearance required to launch foreign subsidiaries rapidly.
Reach Out
Ready to discuss your US-UK tax situation? Contact Jungle Tax today to explore how we can help with your cross-border tax compliance and planning needs.
Questions & Answers
The treaty allocates taxing rights between the two countries and, combined with foreign tax credits, ensures the same income is not fully taxed twice. It sets reduced withholding rates on dividends, interest and royalties, and includes tie-breaker rules for residence. Claiming treaty benefits correctly is central to efficient US-UK cross-border planning.
The US-UK totalization agreement prevents you paying social security taxes, US Social Security and UK National Insurance, on the same earnings in both countries. It determines which system you contribute to, usually based on where you work and your employer. It also helps protect your benefit entitlement across both nations.
Often, but not always. Because UK income tax rates are generally higher than US rates, the Foreign Tax Credit (Form 1116) frequently covers your US liability on UK-taxed income, sometimes leaving excess credits to carry forward. However, mismatches in tax years, income categories and rules like PFICs and the Net Investment Income Tax can leave residual US tax.
Carefully. UK pensions are usually reportable to the IRS, with the treaty affecting how they are taxed, while UK ISAs and many UK funds are treated as PFICs and are tax-inefficient for US persons. Coordinated planning often shifts investments toward US-compliant holdings and uses treaty positions to protect retirement savings on both sides.
Before you move. Pre-arrival and pre-departure planning lets you time income, gains and asset sales around changes in residence under the Statutory Residence Test and US rules. Acting early can reduce exposure in both countries, especially given the 2025 UK non-dom reforms. Last-minute planning usually means lost opportunities and higher tax.
Yes. The treaty and foreign tax credits reduce double taxation, but they do not remove filing obligations. US citizens must file with the IRS on worldwide income regardless of treaty relief, and UK residents must file with HMRC where required. Cross-border planning ensures both returns are consistent and that available relief is actually claimed.
Still have questions? We're here to help.
›Get in TouchOfficial resources & further reading
Authoritative guidance from the relevant tax authorities and regulators. Always confirm current thresholds and deadlines on the official source.
