Does Portugal have a Double Taxation Treaty with Ireland?

Yes, Portugal and Ireland have a Double Taxation Treaty (DTT) signed in 1993. This treaty prevents most double taxation by allocating taxing rights between the two countries and allowing foreign tax credits.

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Ireland Expats in Portugal — Tax Guide 2026

By Taxpert Editorial · Last reviewed: 26 April 2026

Ireland and Portugal are both EU member states, making movement straightforward. The Ireland-Portugal DTT (1993) provides solid treaty protection. Many Irish nationals have moved to Portugal in recent years, attracted by climate, cost of living, and the IFICI regime for tech workers. Key considerations include Irish pension treatment and the Irish Revenue's view on residence termination.

Double Taxation Treaty: Yes (1993)
Tax relief mechanism: Treaty FTC

Key facts

Ireland-Portugal DTT signed 1993
EU freedom of movement: No visa required — register as EU resident within 3 months
Irish domicile levy: Ireland may continue to levy a €200k annual charge on 'domiciled' individuals with Irish ties and >€1M Irish assets
Irish occupational pensions: Taxable in Portugal as Cat. H at progressive rates
Irish USC (Universal Social Charge) and PRSI: Cease on departure from Ireland
IFICI attractive for Irish tech workers in the Portuguese market

Income type treatment

Employment

Irish-source employment (remote): Ireland taxes under treaty Article 15. Portuguese IFICI (20%) on Portuguese-source qualifying employment. FTC for Irish tax paid.

Pension

Irish occupational pensions: Portugal has primary taxing rights as residence state. Irish withholding (20% emergency basis if non-resident status not established) — FTC applies. State pension (contributory OAP): Treaty allocates to Portugal as residence state.

Dividends

Irish dividends: Ireland applies DWT (Dividend Withholding Tax, 25%); treaty reduces to 15%. Portugal 28%. FTC applies in Portugal.

Rental income

Irish rental income: Ireland taxes (property location). Portugal taxes as Cat. F; FTC for Irish tax paid.

Capital gains

Irish CGT (33%) applies to Irish-located assets on disposal. Portugal 28%. Treaty Article 13 allocates gains — check specific asset type.

Watch-outs for Ireland expats

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Irish domicile: Ireland distinguishes between residence and domicile. Even after becoming Portuguese-resident, if you are 'domiciled' in Ireland (a complex test based on origin or choice), Ireland may continue to have taxing rights on certain income. Domicile is a concept not recognized in Portuguese tax law.

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Revenue Non-Resident declaration (Ireland): File Form 12 / submit to Irish Revenue to establish non-resident status formally. Without this, Irish withholding agents may continue to withhold at full resident rates.

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Irish pension draw-down: PAYE (pay as you earn) withholding on pension payments continues even for non-residents unless formally registered as non-resident with the pension provider.

Recommended regimes

IFICI (for tech sector workers, consultants)
Standard IRS (for retirees)

IFICI regime

20% flat rate for qualifying professionals

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NHR Legacy

For existing holders before Jan 2024

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This guide is for general information only. Tax laws in both Ireland and Portugal change frequently. Always consult a qualified tax advisor with expertise in both Ireland and Portuguese tax law before making tax decisions.