In a world of mobility and migration, entrepreneurs often relocate to other countries, taking their businesses with them. When that happens, it is important to assess the tax impact of the move not only on the shareholder, but also on the company they own.
For Irish business owners relocating to Portugal, moving from Ireland to Portugal tax issues may involve personal income tax, dividend and capital gains taxation, Irish exit tax considerations, and possible corporate tax consequences if the company’s place of effective management shifts to Portugal.
Moving From Ireland to Portugal Tax: Why Business Owners Need to Plan Ahead
For business owners, moving from Ireland to Portugal tax planning should cover both the shareholder’s personal tax position and the company’s possible exposure to tax in Portugal.
1. What happens to a shareholder’s tax position if he or she relocates from Ireland to Portugal?
Dividends and capital gains on shareholdings
If a shareholder owning an Irish company relocates from Ireland to Portugal, he or she will generally become a tax resident of Portugal for purposes of Portuguese personal income tax (IRS).
As a Portuguese tax resident, dividends received from Irish companies are typically taxed at a flat rate of 28%, unless aggregation applies. Capital gains on shares are also generally taxed at 28%, subject to applicable exemptions, reliefs or treaty provisions.
No automatic step-up for capital gains
Upon relocation to Portugal, there is generally no automatic step-up in the tax basis of shares to fair market value.
This means that capital gains realised after becoming a Portuguese tax resident may include gains accrued prior to immigration. For that reason, pre-relocation planning is particularly important.
No step-up for dividends
Dividends distributed by Irish companies to a Portuguese resident shareholder are fully taxable in Portugal.
Ireland generally levies dividend withholding tax, typically at 25%, often reduced under domestic exemptions or the Portugal–Ireland tax treaty, depending on structuring and documentation. This withholding tax may be creditable in Portugal, subject to limitations.
Controlled foreign company (CFC) rules
Portugal’s CFC rules may apply depending on the structure and effective taxation of the Irish company.
Although Ireland is not a low-tax jurisdiction, certain holding or IP structures could still fall within the scope of CFC rules, potentially resulting in attribution of undistributed profits to the Portuguese resident shareholder.
Anti-abuse provisions and shareholder transactions
Transactions between the shareholder and the Irish company, such as loans, management fees or other arrangements, must comply with arm’s length principles.
Portuguese tax authorities may recharacterise arrangements that lack economic substance or are considered artificial.
Deemed employment or management income
If the shareholder performs management or executive functions from Portugal for the Irish company, remuneration may be taxable in Portugal as employment or self-employment income at progressive rates of up to 48%, plus applicable surcharges.
The Portugal–Ireland tax treaty will be relevant in determining taxing rights and avoidance of double taxation.
Non-Habitual Resident (NHR) regime / transitional regimes
Although the traditional NHR regime has been phased out for new applicants as of 2024, transitional or replacement regimes may still apply.
Historically, certain foreign-source income could benefit from preferential treatment, but current eligibility depends on specific transitional provisions.
Irish exit tax considerations
Ireland applies exit tax rules in certain corporate contexts, but for individuals there is no comprehensive exit tax regime comparable to some other jurisdictions.
However, individuals may still be subject to Irish tax on income or gains arising during Irish tax residency and must ensure proper cessation of Irish tax residence under Irish rules.
2. What happens to an Irish company’s tax position if its shareholder relocates to Portugal?
Managing dual residence
An Irish company is generally tax resident in Ireland if it is incorporated there or if it is centrally managed and controlled there.
If the place of effective management shifts to Portugal, for example due to relocation of key decision-making, it may also be considered tax resident in Portugal. This may result in dual residence and potential double taxation on worldwide profits.
Single residence based on the Portugal–Ireland tax treaty
The Portugal–Ireland tax treaty provides tie-breaker rules to resolve dual residence situations, typically based on the place of effective management.
In practice, this may require coordination between the tax authorities of both countries.
Corporate exit tax considerations
Ireland does not impose a broad corporate exit tax regime comparable to some jurisdictions, but migration of tax residence or assets may still trigger taxable events, particularly in relation to unrealised gains or restructuring transactions.
3. What would be the Irish company’s tax position once it has become a tax resident of Portugal?
Corporate Income Tax
Once the company is considered tax resident in Portugal, based on its place of effective management, it becomes subject to Portuguese corporate income tax (IRC) on its worldwide income.
The standard rate is 21%, potentially increased by municipal and state surcharges, leading to an effective rate of up to approximately 31.5%.
Step-up for assets and liabilities
Portugal may allow a step-up in the tax basis of assets and liabilities, including goodwill, upon migration, depending on how the relocation is structured.
This ensures that only gains accrued after becoming Portuguese tax resident are subject to taxation.
Depreciation and amortisation
Assets recognised at fair market value may be depreciated or amortised in accordance with Portuguese tax rules, generating deductible expenses over their useful life.
Dividend withholding tax
Dividends distributed by a Portuguese tax resident company are generally subject to a 25% withholding tax, which may be reduced under the Portugal–Ireland tax treaty.
As in other cases, there is typically no step-up for retained earnings accumulated prior to migration.
4. What would be an Irish entity’s tax position if its residence is relocated to Portugal?
If an Irish entity transfers its place of effective management to Portugal, it may become tax resident there, potentially resulting in dual residence issues.
Within the EU, corporate mobility mechanisms such as cross-border mergers, conversions or reorganisations may facilitate restructuring. However, Portugal does not provide a straightforward direct re-domiciliation mechanism for Irish companies into a Portuguese legal entity, such as a Sociedade por Quotas (Lda), so alternative structuring solutions must be considered.
Migration may trigger tax consequences in Ireland depending on the structure adopted, including taxation of unrealised gains or implications under Irish corporate tax rules.
Final remarks
Relocation as an individual to another country has significant personal income tax consequences. However, if the individual is also a business owner, the business itself may effectively relocate as well, resulting in a higher level of tax complexity.
This additional corporate tax dimension requires thorough analysis of the impact of the owner’s relocation on the company’s legal and tax status. For that reason, moving from Ireland to Portugal tax planning should be addressed well ahead of the relocation itself.
If you have any questions, please feel free to contact us. We would be more than happy to share our international expertise on the legal and tax matters related to the cross-border relocation of business owners and their businesses.
This edition of our Legal & Tax Series 2026 provides only general information on the highly complex area of cross-border relocation of business owners and their businesses. We strongly recommend involving local legal and tax counsel regarding your particular circumstances.