Tax residence: international context and Polish examples

Consider an invented investor comparing the cost of remaining a Polish tax resident with a genuine move abroad. The calculation begins with the actual residence rules, the classification of the transactions and the additional costs of moving. Renting a foreign flat or registering an address alone does not establish a tax exemption.

How to identify the residence rules that apply

Begin with the domestic rules of every country that could treat you as resident for the relevant tax year, then check any applicable treaty. The OECD tax-residence resource distinguishes domestic status from a right to live in a country. A visa, broker location or a day-count slogan is not a universal residence test.

Country examples: the UK residence guidance uses automatic and sufficient-ties tests, with a tax year running from 6 April to 5 April. Polish domestic rules consider personal or economic interests or presence exceeding 183 days in the tax year; an applicable treaty also needs assessment. Neither test should be copied to every country.

Polish starting point for the detailed examples below: establish the actual residence facts and instrument classification before comparing Poland with a named destination. A possible dual-residence position needs the relevant treaty, rather than selecting the country with the lowest advertised rate.

Polish domestic residence can arise from either the centre of personal or economic interests or presence exceeding 183 days in the tax year. Family, homes and accounts are facts to assess together, not a checklist that automatically decides every case. If another state also treats you as resident, apply the relevant treaty rather than treating either domestic test as the final cross-border answer.

In a hypothetical calendar-year exercise, three non-overlapping visits correctly counted as 70, 69 and 44 days total exactly 183. That does not satisfy the “more than 183” presence test; one additional actual day makes 184. At either total, a confirmed Polish centre of personal or economic interests remains an independent domestic criterion. MF’s guidance counts parts of days, arrival and departure, and assesses each calendar year separately. The exercise separates tests; it does not certify that someone is safely nonresident.

If both states establish domestic residence, check the actual treaty and any applicable MLI modifications. For example, the Poland–UK treaty has ordered individual tests for permanent home, vital interests, habitual abode and nationality, followed where necessary by agreement between authorities. Do not assume every treaty is identical or skip to the most convenient test.

The Polish baseline — PIT-38 and the Belka tax

A Polish resident’s privately held derivatives falling under Article 30b are generally reported on PIT-38 at 19% of taxable income. Establish revenue, eligible costs and any permitted losses in PLN, using the relevant tax dates. The separate solidarity levy can also be relevant when the applicable combined income base exceeds PLN 1 million; the PIT rate alone is not a complete statement of every liability.

For a hypothetical qualifying private article 30b loss of 30,000 PLN in 2024 and relevant income of 100,000 PLN in 2025, assume the one-off deduction is available and the whole loss remains unused. Deducting 30,000 PLN leaves 70,000 PLN taxable rather than 100,000 PLN, reducing tax at nineteen percent by 5,700 PLN. Each loss retains its original five-year deduction window and source restrictions; virtual currencies have separate settlement rules.

A permitted derivative loss can offset income within the relevant Article 30b category, including eligible share gains. It cannot simply be deducted from salary, business or rental income. Virtual-currency disposal has separate rules even though it also appears on PIT-38. Assess the actual category before netting results; the label “capital income” is not sufficient.

A rate comparison must use the same year, income category and personal circumstances. France’s official 2026 guidance gives a 31.4% combined PFU for covered investment income, comprising 12.8% income tax and 18.6% social levies, subject to the applicable rules and elections. This is not a universal rate for every French trader, nor proof that relocation saves money.

The Polish limited company — a separate comparison

A Polish limited company requires a separate analysis. The 9% CIT rate applies to qualifying income other than capital gains and has both small-taxpayer or start-up conditions and an annual revenue limit. The EUR 2 million small-taxpayer test is not simply a rule that every company below that size pays 9% on all trading income.

The reduced Polish CIT rate applies to qualifying income other than capital gains. Securities and derivative income generally belong to the statutory capital-gains category, with specific exceptions requiring assessment of the company’s actual facts. Company registration alone does not make a trader eligible for nine percent; check both classification and the rate conditions before modelling any retention or distribution advantage.

For an explicitly assumed case qualifying for 9% CIT, distributing the entire after-CIT profit to an individual at 19% dividend tax gives 1 − 0.91 × 0.81 = 26.29% combined tax. If the company income instead attracts 19% CIT, the same assumed distribution gives 34.39%. Retained profit postpones the distribution step; it does not establish that a trader’s derivatives qualify for 9%.

Cyprus — residence and income classification

Cyprus has both a domestic 183-day rule and a conditional 60-day rule. Check the current Tax Department criteria for the actual year. Non-domiciled status concerns Special Defence Contribution and depends on domicile facts and residence history; Polish nationality alone does not establish it automatically.

Do not treat Cyprus’s securities exemption as a general zero-tax rule for forex. The Tax Department’s income guidance expressly excludes foreign-exchange trading and related derivatives from its foreign-exchange-gains exemption. Non-dom relief from Special Defence Contribution on dividends or interest is a separate question. Obtain the correct classification for the actual instrument and activity.

Cyprus increased its corporate income-tax rate from 12.5% to 15% from 1 January 2026, as recorded in the government’s April 2026 fiscal report. Calculate the actual company income, applicable exemptions, shareholder charges and operating costs separately. A non-dom status or a chosen profit threshold does not establish a universal zero-tax dividend or profitable structure.

Other jurisdictions — Malta, Portugal and Andorra

Malta’s shareholder refund mechanism is distinct from private trading. Depending on the income and conditions, a shareholder may qualify for a refund after a company distributes taxed profits; 6/7 is not an unconditional refund for every foreign shareholder. Check the actual income category and refund entitlement rather than assuming a universal 5% burden or EUR 250,000 break-even point.

Portugal repealed NHR for new entry from 1 January 2024, with transitional provisions and continued treatment for qualifying existing participants. It was not a blanket ten-year holiday from all taxes. The replacement research-and-innovation incentive has its own conditions; a trader’s residence and actual income classification require separate checks.

Andorra’s government gives a 10% personal income-tax rate, with applicable allowances, reductions and other rules affecting the result. A headline rate alone does not determine the tax on a trader’s instrument or the financial and personal costs of living there.

The United Arab Emirates — taxpayer and residence tests

The UAE’s corporate-tax rules distinguish personal investment income, qualifying business activity and companies. The standard corporate-tax bands are 0% up to AED 375,000 of taxable income and 9% above that threshold, subject to relevant regimes and exemptions. This is a marginal band structure, so it is not correctly described as simply half of Poland’s 19% tax on the same profit.

Separate immigration permission, UAE domestic tax residence and treaty entitlement. The FTA distinguishes certificate applications for domestic and treaty purposes, with documentary requirements; a visa or an isolated 90-day stay does not by itself settle Polish treaty residence. Build a budget using current quotations and additional costs relative to remaining in Poland, without a universal EUR 250,000 threshold.

A worked example — 500,000 zloty a year on paper

Consider an explicitly invented budget with PLN 500,000 annual Article 30b taxable income, no other relevant items, and assumed Polish tax of PLN 95,000. For this budget only, assume an exchange conversion making that tax about EUR 22,000, foreign annual living costs EUR 40,000 and one-off costs EUR 15,000. Do not assume actual forex income is exempt in Cyprus. The decision requires foreign tax and the difference between domestic and foreign living costs, not foreign expenses alone.

A budget using EUR 22,000 assumed tax saving and EUR 40,000 foreign living costs is incomplete until domestic costs avoided and actual foreign tax are included. The example’s EUR 15,000 initial outflow also includes a rental deposit: record any refundable amount separately from a final expense and do not count its repayment twice. With zero foreign tax assumed only for arithmetic, 19% of EUR 200,000 is EUR 38,000, below EUR 40,000 before initial outflows. These figures cannot prove a universal break-even rule.

Residence evidence and exit-tax conditions

Document the actual residence facts and applicable periods. A foreign registration does not override Polish domestic tests, while dual domestic residence requires the relevant treaty analysis. If a return is wrong, assess corrections, tax, interest and any fiscal-penal consequences under their separate conditions; liability is not established solely by owning Polish property or receiving an authority’s question.

1. Day counts are one part of the analysis — Polish domestic law uses more than 183 days, but residence can also follow from personal or economic interests. Destination rules and treaty tests differ. Document actual presence rather than treating “under 183 everywhere” as a universal solution.
2. Centre of interests — document personal and economic ties and assess the whole situation. The number of Polish ties is not a legal score. In dual-residence cases, use the relevant treaty’s individual rules.
3. CRS reporting — financial institutions identify reportable accounts using tax-residence due diligence, and information is exchanged with relevant jurisdictions under activated relationships. A Cypriot account is not automatically reported to Poland solely because its holder is Polish. Update accurate residence self-certifications and meet any filing duties.
4. Exit tax — for a change of residence, check loss of Poland’s right to tax the asset’s disposal, the statutory personal-asset catalogue, prior residence and the combined market-value threshold. Article 30da uses the market value on the day before the residence change. Derivatives are expressly included; article 30db also contains a spouses’ community-property rule. Check current declaration and payment rules separately.
5. Relevant evidence — document residence facts for the actual destination and period: housing and travel records, family/work ties, local tax documents and any required registration. A Cyprus residence registration certificate is an immigration document, not by itself a determination of tax residence. No universal list of five documents settles every country.

A foreign address or residency package needs to be supported by the actual legal conditions and documented residence facts. Review the services offered and the evidence they provide before relying on a provider’s promise.

Compare the tax and incremental living costs

A move is a personal and financial decision. Compare the correct tax treatment, extra living and administration costs, one-off costs, family circumstances and uncertain future trading income. No universal EUR 200,000 threshold determines whether moving is worthwhile.

Check legally eligible PIT-38 costs before comparing residence options. Reconcile transaction charges and assess other expenses against their actual income connection and statutory conditions; an invoice alone establishes neither eligibility nor a universal prohibition. In a hypothetical settlement with sufficient taxable income, an additional 5,000 PLN of eligible costs reduces a nineteen-percent tax calculation by 950 PLN. That arithmetic does not decide whether a particular expense qualifies.

A Polish company is another structure to evaluate, not a default 9% solution for traders earning PLN 300,000–800,000. Classification of capital gains, eligibility for reduced CIT, distribution tax and operating costs can change the comparison. Obtain a calculation using the actual transactions before forming a company.

What to do before you decide to move

If considering a change of residence, assemble the facts, transaction classification and budget before comparing rates. A Polish 19% Article 30b rate and permitted loss relief are relevant inputs, but neither proves that the Polish system is universally preferable.

1. Model uncertain income. Reconcile the income and costs of each past year and test several future scenarios, including zero income and loss. A lowest recent year can be one stress input, but neither it nor a three-year average proves a sustainable future return. Separate fixed obligations, additional living costs and available cash.
2. Document your centre of interests. List the personal and economic ties in each country with supporting facts and dates. Do not decide residence by counting which list is longer. Check domestic law and the applicable treaty for the actual period.
3. Assess exit-tax conditions before modelling the move. Identify the relevant assets, combined threshold, prior residence and loss of Polish disposal-tax rights. A planning valuation today is not automatically the statutory valuation: for the residence-change case check the day-before rule and current procedural deadlines.
4. Ask about classification and the full comparison. Establish how the actual instruments and activity are treated in the destination, and whether another eligible structure changes the outcome after all taxes and costs. Request the advice’s scope and fee; no fixed relationship between that fee and the amount at stake is established here.

Before acting, obtain a residence analysis, transaction-specific tax calculation and a budget for the actual destination. A local company, holding structure or fixed adviser-fee range is not a universal requirement in every jurisdiction. Review each relevant legal system and its current rules.

Related material: how to file forex taxes in Poland step by step — a practical PIT-38 guide; deductible costs for forex traders — what can be claimed without changing residency; capital gains tax for the forex trader — the foundation of the whole filing system.