Financial Planning for Americans in Poland

Americans living in Poland should normally review their finances across both the US and Polish systems.

That can include:

• US tax filing
• Polish tax residence
• worldwide income
• foreign tax credits
• employment income
• 401(k)
• IRA
• Roth IRA
• US Social Security
• Polish pension rights
• US brokerage accounts
• Polish investments
• PFIC exposure
• FBAR
• FATCA
• property
• estate planning
• beneficiaries
• USD/PLN currency exposure
• future residence

The same income or asset can interact with both systems.

A US retirement account may retain its US characteristics while producing Polish tax consequences when benefits are taken.

A Polish or European investment may be perfectly normal locally while creating complex US reporting or PFIC issues.

The financial plan therefore needs to work in both countries.

1. US tax generally continues after moving to Poland

Moving to Poland does not normally remove a US citizen from the US federal tax system.

US citizens and resident aliens abroad generally remain subject to US taxation and reporting on worldwide income.

That can include:

• Polish salary
• self-employment income
• dividends
• interest
• investment gains
• pension income
• Polish financial accounts
• rental income
• business interests

Poland can also tax foreign income once Polish residence applies.

The financial plan therefore needs to coordinate both systems.

2. Poland uses both a centre-of-interests test and a day-count test

You can generally become Polish tax resident if:

• your centre of personal or economic interests is in Poland
• or you spend more than 183 days in Poland during the tax year

These are alternative tests.

That means someone can potentially become Polish tax resident even without spending more than 183 days there if their centre of vital interests has moved to Poland.

3. The centre of vital interests can be particularly important

Tax residence is not determined by day count alone.

Factors can include:

• family
• home
• employment
• business interests
• economic connections
• social connections

For an internationally mobile person, this can make residence less straightforward than simply counting days.

4. Polish tax residents are generally taxed on worldwide income

Once you are Polish tax resident, Poland generally applies unlimited tax liability.

That means relevant income can include both:

• Polish-source income
• foreign-source income

For an American, that can make US:

• salary
• dividends
• interest
• pensions
• investment gains
• property income

relevant to the Polish tax position.

5. The treaty can resolve dual-residence situations

If both Poland and another country consider you tax resident, the relevant double-taxation treaty may provide tie-breaker rules.

Those rules can consider factors such as:

• permanent home
• centre of vital interests
• habitual abode
• nationality

Residence should therefore be confirmed before relying on a particular country's tax treatment.

6. Poland and the US have an income-tax treaty

The United States and Poland have a bilateral income-tax treaty dating from 1974.

It remains part of the framework for coordinating taxation between the two countries.

The treaty addresses areas including:

• residence
• employment income
• business profits
• real property
• dividends
• interest
• gains
• government service
• relief from double taxation

Because the treaty is older than many modern US treaties, significant pension or investment decisions should be reviewed carefully rather than assuming newer treaty conventions apply.

7. Foreign tax credits can help reduce double taxation

Where the same income is taxed in both countries, foreign tax credits can become important.

The 1974 treaty expressly provides for Poland to allow an appropriate credit against Polish tax for qualifying US tax and for the United States to provide relief for qualifying Polish tax, subject to domestic-law limitations.

That does not mean every double-tax issue resolves automatically.

The income still needs to be classified correctly.

8. Foreign pension income should be checked against the treaty and Polish rules

Poland's tax authority specifically directs recipients of foreign pensions to review the relevant double-tax treaty.

This is important for Americans with:

• 401(k)
• IRA
• employer pension
• other US retirement income

Do not assume all US retirement arrangements are treated identically.

9. Polish pension income is generally taxed under the ordinary income-tax scale

For 2026, the main Polish personal income-tax scale remains:

• 12% on taxable income up to PLN 120,000
• 32% on taxable income above PLN 120,000

subject to the applicable tax-free amount, deductions and detailed rules.

Foreign pension income may interact with other taxable income under this framework.

10. 401(k) accounts can usually remain in the United States

Moving to Poland does not itself normally require you to close a 401(k).

The key questions are:

• whether the provider continues serving you
• investment restrictions
• fees
• whether to retain or roll over the plan
• future withdrawals
• Polish tax
• RMDs
• beneficiaries

A move abroad is a reason to review the account, not automatically to transfer it.

11. IRA accounts also need cross-border planning

A traditional IRA can generally remain in the United States, subject to the custodian's overseas-resident policy.

The plan should review:

• investments
• withdrawals
• US tax
• Polish tax
• RMDs
• beneficiaries
• provider access

The account should be considered as part of the overall retirement plan rather than in isolation.

12. Roth IRA treatment should not be assumed

A Roth IRA can produce qualifying tax-free distributions under US domestic law.

That does not automatically establish its treatment under Polish tax law.

Before relying on Roth income as tax-free retirement capital, confirm how Poland treats:

• the account
• investment growth
• withdrawals
• conversions

13. Roth conversions require both US and Polish analysis

A Roth conversion can create US taxable income.

If you are Polish tax resident, the Polish consequences should also be checked before implementation.

Consider:

• current US tax rate
• Polish tax residence
• expected future tax rates
• future RMDs
• retirement country
• amount converted

A conversion should be based on lifetime planning rather than a purely US tax calculation.

14. Required Minimum Distributions remain relevant abroad

Living in Poland does not remove US RMD requirements where they apply.

Future RMDs may interact with:

• Polish pension income
• US Social Security
• employment income
• investment income

This can create higher taxable income later in retirement.

15. The US and Poland have a Social Security Agreement

The bilateral Social Security Agreement entered into force on 1 March 2009.

It helps coordinate the US and Polish social-insurance systems.

This can be valuable for people who have worked in both countries.

16. The agreement can prevent double social-security coverage

Certain workers would otherwise potentially be required to contribute to both US and Polish systems for the same work.

The agreement contains coverage rules designed to determine which country's system applies.

This can be particularly relevant for:

• temporary assignments
• multinational employees
• self-employed individuals

17. Contribution periods can potentially be combined

Where someone does not independently meet the minimum benefit conditions in one country, the agreement can allow qualifying periods from the other system to be taken into account.

This is known as totalization.

The two pension systems remain separate.

Each country calculates and pays its own benefit.

18. US totalization generally requires some US coverage first

Someone generally needs at least six US Social Security credits before Polish periods can help establish a US totalization benefit.

This can be useful for people who worked in America for several years but did not independently earn enough credits.

19. Polish pension entitlement should be reviewed too

If you work in Poland and pay into the Polish social-insurance system, you may build local pension rights.

Those benefits should eventually be coordinated with:

• US Social Security
• 401(k)
• IRA
• Roth IRA
• investments

The household retirement plan should focus on combined lifetime income.

20. US Social Security can remain payable while living in Poland

Moving to Poland does not automatically remove an existing US Social Security entitlement.

For someone who already qualifies, the benefit can remain an important source of dollar-denominated lifetime income.

Tax treatment should be reviewed separately from private retirement accounts.

21. US brokerage accounts can remain useful

Many Americans living in Europe retain US brokerage accounts.

Potential advantages include:

• access to US custody
• US-listed securities
• dollar assets
• avoiding certain PFIC issues

But Poland can still tax relevant investment income and gains once you are resident.

The account location does not determine the entire tax result.

22. Polish or European funds can create PFIC problems

A local adviser may recommend:

• Polish funds
• UCITS ETFs
• European mutual funds
• Luxembourg funds
• insurance-based investment products

Many non-US pooled investment companies can potentially fall within the US PFIC regime.

This can create:

• Form 8621 reporting
• complex calculations
• additional accounting costs
• potentially adverse US taxation

Investment selection should therefore be designed for a US taxpayer.

23. A locally tax-efficient fund can still be US-tax inefficient

This is one of the central cross-border investment problems.

An investment may be:

• mainstream in Poland
• regulated in Europe
• tax-efficient locally

and still create a poor US tax result.

The correct portfolio needs to balance both systems.

24. Direct shares and US-listed securities can produce a different outcome

Holding:

• individual shares
• US-listed ETFs
• US-domiciled investments

may avoid some PFIC issues.

That does not automatically make them optimal from the Polish side.

Investment structure should balance:

• diversification
• tax
• costs
• access
• reporting
• risk

25. Polish investment income needs local analysis

Interest, dividends and gains can have different Polish tax treatment.

A US portfolio should therefore be reviewed at the underlying holding level rather than simply treated as one brokerage account.

The same economic return can be taxed differently depending on whether it arises as:

• interest
• dividend
• capital gain
• fund distribution

26. Selling investments after Polish residence begins can change the tax result

Someone moving with a substantial US portfolio should review:

• unrealised gains
• cost basis
• acquisition dates
• planned sales
• date Polish residence begins

before restructuring.

Do not wait until after a large sale to investigate the cross-border tax position.

27. Keep detailed cost-basis records

Download and retain:

• purchase dates
• acquisition prices
• reinvested dividends
• historic statements
• stock splits
• transfers
• corporate actions

This can become essential for both US and Polish reporting.

28. FBAR remains relevant

Polish financial accounts can potentially create US FBAR obligations.

These can include:

• bank accounts
• savings accounts
• brokerage accounts
• joint accounts
• certain pension or investment arrangements
• accounts over which you have signing authority

FBAR is separate from your US tax return.

29. FATCA adds another reporting layer

US taxpayers abroad can also have Form 8938 obligations for specified foreign financial assets where the relevant thresholds are exceeded.

Polish institutions also participate in FATCA reporting arrangements with the United States.

Americans should therefore expect local accounts to sit within the international reporting framework.

30. USD/PLN currency planning matters

An American living in Poland may hold:

• 401(k) in USD
• IRA in USD
• brokerage account in USD
• Social Security in USD
• salary or pension in PLN
• property costs in PLN

That creates currency exposure.

31. Do not convert every dollar automatically

The objective is not to eliminate all currency exposure.

Instead:

• maintain sufficient PLN for near-term spending
• fund known local liabilities
• retain globally diversified long-term assets
• avoid forced conversions at poor exchange rates

32. Property should be included in the wider plan

Buying Polish property or retaining US property can affect:

• liquidity
• tax
• currency
• retirement planning
• estate planning
• cash flow

Property should be modelled alongside financial assets rather than treated separately.

33. Estate planning needs US and Polish coordination

An American living in Poland may need to review:

• US estate tax
• Polish succession law
• wills
• property
• retirement-account beneficiaries
• spouse nationality
• children living abroad
• trusts

The planning issue is broader than inheritance tax alone.

34. Beneficiary nominations remain important

US retirement accounts generally pass according to their beneficiary designations.

Review those nominations after moving and coordinate them with:

• wills
• spouse
• children
• beneficiary residence
• inherited-account rules

35. Your long-term country matters

Poland may be:

• a permanent home
• a work assignment
• a retirement destination
• a temporary stage before another move

That should influence:

• investments
• pension withdrawals
• currency
• property
• estate planning

The right solution should preserve flexibility where practical.

This page is for general information only and does not constitute personalised financial, tax, legal, pension, retirement, investment, estate-planning or currency advice.

Financial planning for Americans in Poland can involve:

• US federal tax
• Polish tax
• tax residence
• worldwide income
• foreign pensions
• 401(k)
• IRA
• Roth IRA
• Social Security
• Polish social insurance
• investment taxation
• PFICs
• FBAR
• FATCA
• property
• estate planning
• currency
• future residence

US tax advice should be obtained from a suitably qualified US tax adviser or CPA.

Polish tax and legal advice should be obtained from appropriately qualified Polish professionals.

Financial planning should be coordinated with that specialist advice before substantial pension withdrawals, Roth conversions or investment changes are implemented.

Investments can fall as well as rise, and you may get back less than you invest.

Tax rules, treaties, Social Security agreements and provider policies can change.