How do US state taxes affect UK residents with US income?

Published: 06/09/2025 • By Chris McConnachie
UK residents with US income face complex tax obligations that vary significantly by US state. While some states like Delaware and Florida impose no personal income tax, others like California and New York maintain worldwide tax claims even after UK residency. This creates potential double taxation scenarios requiring careful planning. Key considerations include state filing obligations, treaty relief opportunities, and UK tax credit claims. Many clients underestimate ongoing US state compliance requirements, particularly California's strict residency rules. Professional guidance helps navigate the intersection of UK residence rules, US state tax codes, and available treaty protections to optimise your overall tax position.

Expert Financial Insights

This comprehensive guide provides expert analysis and practical advice for UK investors. Our experienced financial advisors share insights to help you make informed investment decisions and optimize your financial strategy.

At Netfin, we understand that every investor's situation is unique. That's why our articles combine market expertise with practical guidance tailored to UK regulations, tax implications, and investment opportunities.

Key Takeaways

This article covers essential considerations for UK investors, including regulatory requirements, tax implications, and strategic planning approaches. Our analysis is based on current market conditions and regulatory guidance from the FCA.

For personalized advice based on your specific situation, we recommend consulting with one of our qualified financial advisors who can provide tailored strategies aligned with your financial goals.

Professional Financial Advice

The information provided in this article is for educational purposes and should not replace professional financial advice. Every investor's circumstances are different, and what works for one person may not be suitable for another.

Our FCA-regulated financial advisors can provide personalized guidance based on your individual situation, risk tolerance, and financial objectives. Contact us today to discuss your financial planning needs.

Topics: us-state-taxcalifornia-tax-uknew-york-tax-planningcross-border-taxationuk-us-expats

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