Capital Gains & Investment Taxation in Portugal (2026)
If you invest from Portugal — shares, bonds, ETFs or funds — most of your gains and income meet a single number: a 28% flat rate. But there are useful wrinkles, like a discount for holding longer and a real advantage for accumulating funds. This is general education for the 2026 tax year, not tax advice, and Portuguese rules can change.
- Sort your income into two boxes. Dividends, interest and fund distributions are Category E (capital income); profits on selling shares, bonds, ETF units or crypto are Category G (mais-valias, capital gains).
- Apply the default 28% flat rate. Both categories are taxed at a flat 28% by default — Portuguese-source income usually has it withheld at source; foreign income you declare and it's taxed at 28%.
- Check whether holding longer cuts your rate. For listed securities and open-ended fund units, part of the gain is excluded after 2, 5 and 8 years, lowering the effective rate to 25.2%, 22.4% and 19.6%.
- Decide on aggregation only if it helps. You can elect the progressive scale instead of 28% — worthwhile only if your marginal rate sits below 28%, and it's all-or-nothing for that income.
What matters
The two categories. Portugal splits investment income into Category E (capital income: dividends, interest, fund distributions) and Category G (capital gains, or mais-valias, on selling securities, fund units and crypto). The headline rate for both, by default, is a flat 28%. This is a special, autonomous rate — the gain is not normally pooled with your salary or other income.Dividends and interest. Portuguese-source dividends and interest usually have 28% withheld at source, and that withholding is normally final — you needn't even declare it unless you choose to. Foreign dividends and interest are declared and taxed at the same 28%. A foreign tax credit offsets foreign withholding tax already paid, capped at the lower of the foreign tax or the Portuguese tax due; treaties typically limit foreign WHT to 5%–15%.Capital gains. The net annual gain (gains minus losses) on shares, bonds, ETF/fund units and other securities is taxed at 28%. Losses can offset gains and be carried forward up to 5 years — but only if you opt for aggregation in both the loss year and the year you use it.The aggregation option. Instead of 28%, a resident may elect the progressive IRS scale (roughly 13%–48% in 2026, plus a solidarity surtax of 2.5% on income €80k–€250k and 5% above). This only helps when your marginal rate is below 28%, and it's all-or-nothing for the relevant income. Aggregation also unlocks the 50% relief on dividends from Portuguese-resident and qualifying EU/EEA companies (only half the dividend taxed) meeting Parent-Subsidiary (Directive 2011/96/EU) conditions — note that US, UK, Swiss and Irish-domiciled UCITS/ETF distributions do not qualify — and it's the gateway to using carried-forward losses.Holding-period discount. Under Law 31/2024, part of a gain on listed securities and open-ended fund units is excluded by holding period — 10% at 2 to under 5 years, 20% at 5 to under 8, 30% at 8+ — pulling the effective 28% down to 25.2%, 22.4% and 19.6%. Its administrative application is still being debated, so treat it as a live area.Watch-outs. Income from blacklisted jurisdictions is hit with an aggravated 35%, and those losses aren't deductible. Short-term gains (held under 365 days) become mandatorily aggregated (taxed at progressive rates) if your total taxable income exceeds the statutory threshold of ~€83,696 for 2026 (the top progressive bracket itself starts around €81,199); the exact short-term threshold figure is disputed (some sources cite ~€86,634).