When Financial Plans Assume Stability, but Life Doesn’t
Why a plan built on straight-line assumptions can quietly drift away from the life actually being lived, especially after a move abroad.
A financial plan is a set of assumptions about returns, tax rules, income and where a person lives. A move abroad changes several of those assumptions at once, and US law has changed three of them since January 2025. The useful test in 2026 is what the plan assumes, and whether each assumption still holds.
Most financial plans look sensible on the day they are written. Markets deliver a steady average return, tax rules stay as they are, income arrives on schedule, and the household keeps living where it lives now. On a spreadsheet the future is a smooth upward line. Real life moves in bursts. Governments rewrite tax law, families grow and relocate, health changes, and careers end earlier or later than expected. A plan that assumes stability is not wrong on day one. It starts aging the moment life moves.
| What changed | When | The detail | Why it matters abroad |
|---|---|---|---|
| Windfall Elimination Provision and Government Pension Offset repealed | Signed January 5, 2025 | The Social Security Fairness Act applies to benefits payable for months after December 2023 | The Windfall Elimination Provision had reduced benefits for people with pensions from work not covered by Social Security, which included many foreign pensions |
| Estate and gift basic exclusion | Law signed July 4, 2025; applies from 2026 | $15,000,000 per person for 2026, up from $13,990,000 for 2025 | Estate plans drafted around a lower, expiring exclusion now rest on a different number |
| Foreign Earned Income Exclusion | Tax year 2026 | $132,900, up from $130,000 for tax year 2025 | The exclusion moves every year, so a plan that fixed one year’s figure drifts |
| Annual exclusion for gifts to a spouse who is not a US citizen | Calendar year 2026 | $194,000, against $19,000 for gifts to anyone else | Mixed-nationality couples abroad work with a different limit from couples who are both US citizens |
What does a financial plan assume?
Every projection rests on inputs that someone chose. The common ones are a rate of return applied evenly across the years, tax rules frozen at the date of writing, a retirement date, a life expectancy, a single currency, and a single country of residence. None of these is a forecast. Each is a placeholder that makes the arithmetic possible.
The plan ages as the placeholders stop matching the household. The difficulty is that nothing announces the drift. The document still exists, the accounts still exist, and the projection still shows the same smooth line. Only the life underneath it has changed.
What changed for Americans abroad in 2025 and 2026?
Three changes in under two years illustrate the point. On January 5, 2025, the Social Security Fairness Act became law and repealed the Windfall Elimination Provision and the Government Pension Offset. Both had reduced Social Security benefits for people who also received a pension from work not covered by Social Security, a group that included many Americans with foreign pensions. The Social Security Administration states that the law applies to benefits payable for months after December 2023.
On July 4, 2025, Public Law 119-21 was signed. Among its provisions, it set the federal estate and gift basic exclusion amount at $15,000,000 per person for 2026. The IRS confirms that figure for the estates of people who die during 2026, up from $13,990,000 for 2025. Earlier plans had been written around an exclusion that was scheduled to fall sharply at the end of 2025.
For tax year 2026 the IRS also adjusted dozens of thresholds in Revenue Procedure 2025-32. The Foreign Earned Income Exclusion rose to $132,900 from $130,000. The annual exclusion for gifts stayed at $19,000, while the annual exclusion for gifts to a spouse who is not a US citizen rose to $194,000. A plan written even three years ago may now rest on figures that no longer exist.
Why are cross-border plans more exposed?
A US citizen is taxed by the United States on worldwide income wherever that person lives, as IRS Publication 54 sets out. An American resident in Europe is therefore inside two tax systems at once, and either one can change. The ordinary uncertainties of a domestic plan are multiplied rather than replaced.
Currency adds a second layer. Amounts on a US tax return are reported in US dollars, and the IRS publishes yearly average exchange rates for that purpose. A household that spends in euros while its investments are held in dollars sees its real spending power move with the exchange rate even when markets are calm.
Residence is the third layer. How pensions, investment income and an estate are treated can shift when a person moves country, and sometimes when the rules of the new country move around them.
How does succession differ on each side of the Atlantic?
The United States taxes the estate of the person who dies. The federal estate tax is calculated on the estate as a whole, with the basic exclusion amount applied before any tax is due. Several European countries work the other way round. In Spain, the tax agency describes the heir, the legatee or the life insurance beneficiary as the person liable for Inheritance and Gift Tax.
Tax is only part of it. The European Union’s guidance on cross-border inheritance explains that the national law applicable to a succession decides who the beneficiaries are, whether a family member can be disinherited, and whether parts of the estate are reserved for certain people such as children. A plan that considers one side of the Atlantic can leave a family facing outcomes nobody intended.
What does a plan that expects change look like?
Nobody predicts the future precisely. Plans that hold up tend to be built to bend rather than break, and four features recur in them.
- Stress-tested, not only projected — the plan has been run against a poor sequence of returns, a weaker dollar against the euro, and one spouse needing care earlier than expected
- Flexible — adequate liquidity, income sources that do not all depend on the same market, and structures that still work after a change of country
- Reviewed on a schedule rather than on a scare — once a year, and after every major change in life or in law
- Coordinated across borders — US tax, local tax, investments and insurance interact, and gaps appear where each is decided in isolation
Which life events commonly outdate a plan?
The events are ordinary ones: a move to another country, a change of job, retirement, an inheritance, marriage, divorce, the birth of a child, or a change in health. For Americans abroad, the list now includes the run of US rule changes since January 2025. A plan last reviewed before those dates was written against different numbers.
The question worth asking
The most useful question is rarely whether a plan is good. It is what the plan is assuming, and whether that is still true. Each assumption can be listed, dated and checked against the household as it is today and the rules as they stand in 2026.
Figures cited were current as of September 2026 and are subject to change.
- Social Security Administration — Social Security Fairness Act: Windfall Elimination Provision (WEP) and Government Pension Offset (GPO) update — https://www.ssa.gov/benefits/retirement/social-security-fairness-act.html — checked 2026-09-17
- Social Security Administration — Legislative Bulletin 118-13, President Signs H.R. 82 — https://www.ssa.gov/legislation/legis_bulletin_010624.html — checked 2026-09-17
- Congress.gov — H.R. 82, Social Security Fairness Act of 2023, 118th Congress — https://www.congress.gov/bill/118th-congress/house-bill/82 — checked 2026-09-17
- Congress.gov — H.R. 1, 119th Congress, Public Law 119-21 — https://www.congress.gov/bill/119th-congress/house-bill/1 — checked 2026-09-17
- IRS — IRS releases tax inflation adjustments for tax year 2026 — https://www.irs.gov/newsroom/irs-releases-tax-inflation-adjustments-for-tax-year-2026-including-amendments-from-the-one-big-beautiful-bill — checked 2026-09-17
- IRS — Revenue Procedure 2025-32 — https://www.irs.gov/pub/irs-drop/rp-25-32.pdf — checked 2026-09-17
- IRS — Estate tax — https://www.irs.gov/businesses/small-businesses-self-employed/estate-tax — checked 2026-09-17
- IRS — Foreign earned income exclusion — https://www.irs.gov/individuals/international-taxpayers/foreign-earned-income-exclusion — checked 2026-09-17
- IRS — Publication 54, Tax Guide for U.S. Citizens and Resident Aliens Abroad — https://www.irs.gov/publications/p54 — checked 2026-09-17
- IRS — Yearly average currency exchange rates — https://www.irs.gov/individuals/international-taxpayers/yearly-average-currency-exchange-rates — checked 2026-09-17
- Agencia Tributaria (Spain) — Inheritance and Gift Tax (non-residents) — https://sede.agenciatributaria.gob.es/Sede/en_gb/no-residentes/impuesto-sobre-sucesiones-donaciones.html — checked 2026-09-17
- European Union, Your Europe — Planning your cross-border inheritance — https://europa.eu/youreurope/citizens/family/inheritances/planning-inheritance/index_en.htm — checked 2026-09-17
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Common questions
- What does it mean for a financial plan to assume stability?
- A projection needs fixed inputs to produce a number: a steady average return, today’s tax rules, a retirement date, one currency and one country of residence. Those inputs are placeholders rather than forecasts. The plan is accurate on the day it is written and drifts as the household and the rules move away from the placeholders.
- Why does moving abroad affect a US financial plan?
- A US citizen remains taxable by the United States on worldwide income after a move, as IRS Publication 54 explains, and also becomes subject to the tax system of the new country. Currency, residence status and succession law all change at the same moment. A plan written for a single-country life was not built with those inputs.
- What did the Social Security Fairness Act change?
- Signed on January 5, 2025, the Act repealed the Windfall Elimination Provision and the Government Pension Offset. Both had reduced Social Security benefits for people who also received a pension from work not covered by Social Security, including many foreign pensions. The Social Security Administration states that the law applies to benefits payable for months after December 2023.
- What is the US estate tax exclusion for 2026?
- The IRS states that the estates of people who die during 2026 have a basic exclusion amount of $15,000,000 per person, up from $13,990,000 for 2025. The figure was set by Public Law 119-21, signed on July 4, 2025. Plans drafted before that date were generally written around an exclusion scheduled to fall at the end of 2025.
- What is the Foreign Earned Income Exclusion for tax year 2026?
- For tax year 2026 the Foreign Earned Income Exclusion is $132,900, up from $130,000 for tax year 2025. The amount is set out in Revenue Procedure 2025-32 and is adjusted for inflation each year. A plan that fixed one year’s figure as a constant will be slightly out of date every January.
- How much can a US citizen give a spouse who is not a US citizen in 2026?
- The IRS sets the 2026 annual exclusion for gifts to a spouse who is not a US citizen at $194,000, up $4,000 from 2025. The general annual exclusion for gifts remains $19,000 per recipient. The IRS publishes the two figures separately because gifts between spouses are treated differently when the receiving spouse is not a US citizen, which is the position of many mixed-nationality couples abroad.
- How do exchange rates affect an American living in Europe?
- Amounts on a US tax return are reported in US dollars, and the IRS publishes yearly average exchange rates for converting foreign currency. A household that spends in euros while holding investments in dollars sees its real spending power rise and fall with the exchange rate, whether or not markets move. A single-currency plan does not show that exposure.
- How is inheritance taxed differently in Europe and the United States?
- The United States taxes the estate of the person who dies, after applying the basic exclusion amount. Several European countries tax the person who receives the inheritance instead. Spain’s tax agency, for example, names the heir, the legatee or the life insurance beneficiary as the person liable for Inheritance and Gift Tax.
- Can the law of another country decide who inherits an American’s estate?
- The European Union’s guidance on cross-border inheritance explains that the national law applicable to a succession determines who the beneficiaries are, whether a family member can be disinherited and whether part of the estate is reserved for certain people such as children. An American resident in Europe may therefore be dealing with succession rules that differ from those of a US state.
- How often is a cross-border financial plan typically reviewed?
- A common rhythm is once a year, plus a review after any major change in life or in law. For Americans abroad, the period since January 2025 has included the Social Security Fairness Act, a new estate and gift basic exclusion amount and the annual inflation adjustments, each of which altered an input that many plans rely on.
- Which life events commonly make a financial plan out of date?
- The usual triggers are a move to another country, a change of job, retirement, an inheritance, marriage, divorce, a new child and a change in health. A change in tax law has the same effect even when nothing in the household moves. Each event replaces one of the assumptions the original projection was built on.
A note on financial planning content
Financial planning topics discussed by US Expat are educational and general in nature. They should not be treated as personalized investment, financial, or retirement advice unless provided through the appropriate advisory relationship and documentation. Where regulated advisory services are referenced, they are offered separately and are subject to applicable jurisdiction, registration, and compliance requirements.
The information provided by US Expat is for educational and informational purposes only. It should not be treated as personalized tax, legal, immigration, investment, insurance, or financial advice. U.S. citizens abroad should consult qualified professionals who understand their specific facts and circumstances. US Expat is not a law firm, tax filing firm, or immigration law firm.
Rules and thresholds for U.S. citizens abroad change. Pages are reviewed periodically; confirm current details with a qualified professional before acting.
