How are foreign dividends taxed in Portugal?

Dividends from foreign shares are Category E investment income. Residents declare them on Anexo J of the Modelo 3 return, filed between 1 April and 30 June of the year after the income year.

The flat rate, and when to refuse it

The default is a special flat rate of 28 percent. It is simple and it is final. But you can tick the aggregation option, which throws the dividends in with your salary or freelance income and taxes the whole lot at the progressive scale, from 12.5 percent on the first 8,342 euros to 48 percent above 86,634 euros in 2026.

Aggregation only helps when your total income is modest enough that your marginal rate lands under 28 percent. On a large salary it makes things worse, because the dividends stack on top at 43 to 48 percent. Aggregation is also an all or nothing choice across your investment income for the year, not a per line decision.

Blacklisted jurisdictions

If the paying entity is resident in a jurisdiction on Portugal's list of privileged tax regimes, the rate is 35 percent, and that penalty applies under IFICI too.

Avoiding double taxation

Most source countries withhold tax at their end. Portugal gives a foreign tax credit for what you actually paid, limited to the Portuguese tax on the same income. Where a double taxation convention exists, and Portugal has 79 signed with 78 in force, the treaty rate is usually lower than the domestic withholding rate. Claiming that lower rate normally means giving the payer or the foreign administration a Portuguese certificate of tax residence before payment, because refunds afterwards are slow.

If you hold IFICI

Foreign source income, including dividends, is exempt from IRS under IFICI, with the exceptions of pensions and blacklisted jurisdictions. That exemption is one of the strongest parts of the regime and it is a good reason to check eligibility before you restructure a portfolio.

The tax guide for expats covers the income types side by side, and the tax estimator shows the difference aggregation makes.