Financial Planning Fundamentals: Strategies for Building Wealth Across Borders

Financial Planning Fundamentals: Strategies for Building Wealth Across Borders

Introduction:

Accumulating wealth in a single jurisdiction is challenging, but managing finances across two can feel like navigating uncharted waters. Without a clear plan and reliable guidance, even calm seas can lead to ships being led astray. Fortunately, timeless principles and strategies for saving and investing act as the compass and map, helping you steer through the complexities of accumulating and maintaining wealth across borders with confidence.

“The best time to plant a tree was 20 years ago. The second-best time is now.” – Chinese Proverb 

This proverb provides invaluable guidance on accumulating wealth. Much like growing a tree that requires a strong root system, beginning to save early establishes your foundation for wealth accumulation. If you missed the opportunity to start earlier, the next best step is to begin now. Waiting further only delays the potential growth of your savings. By starting today, you can take control of your financial future and allow your savings to benefit from time, patience, and steady growth—ensuring your “tree” of wealth has the best chance to thrive.

“Compound interest is the eighth wonder of the world. He who understands it, earns it; he who doesn’t, pays it.” – Albert Einstein

This brings us to compound interest, which refers to earning returns not only on your original investment but also on the returns that investment generates over time. For example, investing $10,000 at an annual return of 7% with annual compounding grows to around $19,672 after 10 years and approximately $38,697 after 20 years. This exponential growth highlights the importance of starting as soon as possible to maximize growth.

Overcoming barriers to begin saving early can feel daunting, especially when managing multiple currencies or unexpected capital expenditures. However, breaking down saving into manageable steps makes it easier to plant that seed. One effective strategy is to automate contributions to tax-advantaged accounts, like Traditional IRAs, ensuring consistent saving without constant attention. Additionally, consider prioritizing high-interest debts, such as student loans, while still setting aside small amounts for long-term goals. Starting early, even with modest amounts, can help create momentum, allowing your savings to grow over time and making it easier to adjust to financial pressures.

Once you’ve established a saving habit and built a 6-month emergency fund, the next step is to grow your wealth through investing. Key principles for steady and sustainable growth include:

  • Diversification: This fundamental principle mitigates investment risks. Imagine a basket of eggs: if all the eggs are in one basket and it breaks, all the eggs are lost. However, if the eggs are spread across multiple baskets, a single mishap won’t spoil them all. Similarly, a well-diversified investment portfolio reduces concentration risk by spreading investments across different asset classes, geographies, and a variety of securities within each asset class.
  • Time in the Market: Success comes from time in the market, not timing the market. Studies show that the best-performing accounts often belong to investors who forget they even have them, highlighting the benefits of staying invested. Missing just a few key trading days can dramatically impact returns. For example, between 2002 and 2022, the S&P 500 averaged a 9% annual return, but missing the 10 best days reduced returns to just 5.5%, underscoring the importance of patience and consistency.
  • Pound/Dollar Cost Averaging: This strategy involves making regular contributions of the same value to your investment portfolio, building the habit of saving while smoothing out the effects of market fluctuations. When prices are high, your investment buys fewer shares; when prices are low, it buys more. Over time, this results in a cost basis that reflects the average price of the securities, offering protection against market volatility and reducing the risk of poor market timing.

Conclusion:

Navigating the complexities of building and preserving wealth, particularly across multiple jurisdictions, requires both strategy and discipline. By starting early, harnessing compound interest, and embracing key investment principles like diversification and Dollar/Pound Cost Averaging, you can confidently grow your financial future.

At Tanager, we specialize in guiding US-connected individuals through these complexities with tailored advice. Contact us today to take the first step toward securing your wealth across jurisdictions.

 

Disclaimer:

This is not advice or a recommendation. You should consult with your tax attorney and accountant to determine whether any of these actions are appropriate in your circumstances.

Certain investments carry a higher degree of risk than others and are, therefore, unsuitable for some investors. Past performance is not a reliable indicator of future results. The value of investments, and the income from them, can go down as well as up, and you may not recover the amount of your initial investment.

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Abbas Somji

Abbas Somji

PARTNER AND FINANCIAL ADVISOR

Abbas moved to London in early 2018 to be with his British wife. Born in the United Kingdom and raised in Botswana, Abbas then migrated to Houston where he attended University. He began his professional career at an RIA in Houston and holds the Series 65 license and US CFP® . He brings with him a decade of experience in advising High-Net-Worth clients and business owners. Abbas is a Partner and Advisor and ensures he’s helping clients navigate the complicated world of being an expat in the UK. He particularly enjoys providing clients with the clarity and confidence to pursue their financial goals. A sports enthusiast, Abbas enjoys conversing about and playing soccer/football and attending Liverpool matches.

Read more… Abbas Somji, Beyond the Bio

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Alistair Jackson

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Alistair joined the team at Tanager in 2019 following his completion of an MPhil in English at the University of Cambridge as a John Crook Scholar. With three years of experience working across our Investment and Financial Planning teams, Alistair transitioned to the Advisor Team in January 2022. His time is now focused on the production and implementation of robust planning and investment strategies for our clients on either side of the Atlantic. Outside of the office, Alistair’s time is divided between exploring East London’s many food markets, spending time with friends and family, and travelling abroad.

 

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Angela Lloyd-Read

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Having worked with private clients for almost 25 years, Angela has helped a diverse range of clients improve their financial well-being. A Chartered Financial Planner and Fellow of the Personal Finance Society, she is passionate about the importance of relevant and ongoing financial planning, and the difference it can make to the lives of individuals and families alike. As a member of Resolution, she works with solicitors and mediators to improve financial outcomes for clients going through divorce or separation. By communicating complex ideas simply and setting out clear priorities, Angela allows clients to concentrate on their other concerns at this time. In her free time, Angela enjoys exploring London’s museums and galleries and being creative in the kitchen for the benefit of friends and family.

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David Costello

PARTNER AND FINANCIAL ADVISOR

David arrived in the UK on New Year’s Day 2014 and brought with him fifteen years’ experience advising private clients and business owners. He attained the U.S. Certified Financial Planner designation in 2007. David specialises in building financial plans for UK based households that include US taxpayers and is tirelessly committed to helping Tanager clients maximise their wealth and achieve their stated goals and objectives while navigating the US/UK tax and investment landscape. David is a Non-Hodgkins Lymphoma survivor and is active in volunteering and fund raising for the support toward the treatment and eradication of blood cancers.

Read more… David Costello, Beyond the Bio

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Gail Hamilton- King

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Gail joined Tanager in 2021 as a financial advisor with more than fifteen years of experience in senior investment banking and management consulting roles at Morgan Stanley and Deutsche Bank. She enjoys leveraging her financial experience to make a tangible difference for Americans living in the UK by helping to manage their complex finances globally. Gail moved to the UK from Chicago to complete an MBA at London Business School. As a dual UK/US family living in west London, she understands the challenges our clients face.

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Ieuan Martin

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Ieuan joined Tanager in January 2023 to continue his career in wealth management and provide client solutions for families across the UK and the US. He has a strong background in finance, having spent 3 years as a Financial Planner after graduating from Newcastle University with a degree in Economics and holds the Series 65 license, the CFA Investment Management Certificate (IMC), and the Diploma in Regulated Financial Planning (CII). A keen student of history, Ieuan spends his weekends either reading or watching his beloved Newcastle United.

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Kristopher Heck

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Kristopher has lived in London since 2007 and combined his ten-plus years of experience in the Institutional Asset Management Industry in the US and Europe and personal experiences as an expat to found Tanager. A founding partner and Chief Investment Officer, Kris has been a guest lecturer at the London School of Economics and has particular interest and experience in portfolio efficiency – encompassing tax, cost, and the optimal risk budgeting of a client’s assets. Kristopher is an avid fan of the Baltimore Orioles and enjoys going back to Maryland whenever he is able to.

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Kyle Pettigrove

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Kyle is a Certified Financial Planner ™ (CFP ®) and joined Tanager in London in 2016 having moved to the UK with his fiancée. A US/UK dual citizen and Philadelphia native, Kyle previously worked as a financial advisor in the US specializing in retirement planning. Now spearheading Tanager’s stateside office in Philadelphia, Kyle brings both relevant personal and professional experience to his role and covers the areas of pensions for US residents, British expats and transatlantic families living in the US. Outside of his work life, Kyle is an avid traveller and craft beer enthusiast.

Read more… Kyle Pettigrove, Beyond the Bio

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Louis Davies

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Louis started his Wealth Management career in 2015 and has 10 years of experience in financial planning, with 4 years focused on Transatlantic Advisory services. He specialises in structuring global assets to enhance clients’ financial affairs, as well as developing strategies for US-connected families and individuals both before and after relocating to the UK. Louis holds the Certificate in Advanced Financial Planning (CISI) and the Diploma in Regulated Financial Planning (CII). Outside of work, Louis enjoys going to the gym and is a long-time sufferer of Tottenham Hotspur Football Club.

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Luke Papaelias

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Luke joined the Tanager US team in 2025 as a Financial Advisor with over 18 years of experience in the industry. Born and raised in Australia, Luke completed a Bachelor of Commerce (Accounting and Business Law) at Curtin University and holds the Series 65, as well as an Advanced Diploma of Financial Planning.  Luke started his professional career as a tax accountant, later switching to a Financial Advisor role and brings over 17 years of experience in advising High-Net-Worth clients around the globe. In 2018 he relocated to Dubai with his family to continue providing advice to predominantly UK and Australian expats in the region. After 6 years in Dubai, Luke moved to Houston to help expatriate families living in the US, navigate the complex world of cross border advice. Luke has always had a strong passion for finance and has developed a particular interest in the unique issues that expatriates face when planning for their financial future. He is passionate about helping clients navigate cross border issues and helping them achieve financial freedom to pursue their goals. Outside of work, Luke enjoys outdoor activities with his family. He is a motorsport enthusiast and has a passion for travel as well as learning new cultures.

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Patrick Mulhern

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Born and raised in New Hampshire, Patrick moved to Scotland at seventeen to study at the University of St. Andrews and has been picking up knowledge of life on both sides of the Atlantic ever since. A Partner and Financial Advisor, he specializes in complex planning for high-net-worth clients, international estate planning and inheritance issues. Prior to working in Financial Planning, he worked for a trust and estate law firm and co-wrote the book Estate Planning to Die For. Patrick lives in Sussex with his wife and children. He gets back to New England as often as possible and is one mountain short of having hiked all 4,000 Footers of the White Mountains.

Read more… Patrick Mulhern, Beyond the Bio

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Robyn Power

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Robyn joined Tanager in 2025 from Edinburgh, bringing valuable experience in the international advice space. She has a background in assisting expats with the complexities of cross-border financial planning. Having earned her Diploma in Regulated Financial Planning (CII), Robyn is committed to providing insightful, tailored guidance to help clients navigate their financial journeys with confidence. A graduate of the University of Aberdeen with a 2:1 MA (Hons) in French & Hispanic Studies, Robyn has a deep appreciation for global cultures. Her passion for travel and world cuisines reflects her international perspective, qualities that enhance her understanding of the diverse needs of expatriate clients.

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Susan Blaylock

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Susan joined Tanager in 2019 upon moving to London. She is a Financial Advisor and has over a decade of experience in the financial services industry, mainly as a CPA. What she loves about financial planning is the opportunity to help people understand and achieve the financial goals that are most important to them. She enjoys the challenge of working with the complex situations of US expats. Susan shares Tanager’s philosophy of developing strong relationships with clients and gaining a deep understanding of their financial situations and life goals. Outside of work, Susan enjoys exploring, including hiking in the Alps, canyoning, kayaking London’s canals, cycling, and spending time with friends and family.

Read more… Susan Blaylock, Beyond the Bio

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