Crypto Taxation in Portugal

Portugal introduced a dedicated crypto-asset tax framework through Lei 24-D/2022, effective 1 January 2023. Before that date, the Autoridade Tributaria e Aduaneira (AT) applied general capital-gains principles with limited specific guidance. The 2023 reform added explicit provisions to the Codigo do Imposto sobre o Rendimento das Singulares (CIRS), creating a three-category structure that covers most crypto activity an individual investor or sole-trader encounters.

What rate applies to short-term crypto gains?

When a Portuguese tax resident disposes of a crypto asset held for fewer than 365 days, the gain is treated as a Category G capital gain and taxed at a flat 28% autonomous rate under Article 72 CIRS (Autoridade Tributaria, AT crypto guide, 2023). The taxpayer may instead elect to aggregate the gain with all other taxable income (englobamento), in which case progressive IRS rates of 12.5% to 48% apply depending on total income bracket. Aggregation makes sense for lower-income filers; at higher incomes the flat 28% is almost always lower. The gain is reported in Annex G of the Modelo 3 IRS annual return, Quadro 18A.

What is the 365-day long-term exemption?

Article 10(19) CIRS exempts capital gains on crypto assets held by an individual for 365 days or more from Portuguese IRS entirely (AT informational leaflet, 2023; PwC Worldwide Tax Summaries, Portugal, updated 05 January 2026). Two conditions must both be satisfied: (1) the holding period, measured using the FIFO method, equals or exceeds 365 days at the date of disposal; and (2) the counterparty is located in an EU or EEA member state, or a country that has a tax-information-exchange agreement with Portugal. Disposals to counterparties in non-cooperative or blacklisted jurisdictions do not qualify for the exemption, even if the 365-day test is met; those gains are taxed at 35% rather than 28%. Exempt gains must still be declared in Annex G1 of the Modelo 3 return; failure to declare is a reporting violation separate from the tax liability.

How are mining and on-chain staking taxed?

Activities involving the issuance of crypto assets -- including mining -- or the validation of transactions through consensus mechanisms such as proof-of-work or proof-of-stake are classified as commercial and industrial activity under Category B (Business and Professional Income) per Article 4(1)(o) CIRS (Legal500, RFF Lawyers analysis, 2025). Income is taxed at the standard progressive IRS rates (12.5% to 48% plus a solidarity surcharge of 2.5% to 5% on taxable income above EUR 80,000). Under the simplified regime available to sole traders with annual turnover below EUR 200,000, mining income uses a 0.95 coefficient: 95% of gross receipts forms the taxable base, with 5% treated as a deemed cost deduction. Validator-node staking is generally treated as commercial activity regardless of scale. The 365-day exemption does not apply to Category B income.

How is delegated staking and other passive yield taxed?

Passive remuneration derived from the investment of crypto assets -- such as delegated staking rewards, lending interest, or yield from liquidity provision -- falls under Category E (Capital Income) and is taxed at a flat 28% rate (PwC Worldwide Tax Summaries, Portugal, 05 January 2026; AT informational leaflet). An important timing rule applies: if the reward is paid in crypto rather than fiat currency, taxation is deferred until the crypto is converted into fiat or used in a taxable transaction. At that point the fair-market value on the date of conversion forms the taxable income. Income is reported in Annex E of the Modelo 3 return.

How are crypto-to-crypto swaps treated?

Exchanging one crypto asset for another -- for example, trading BTC for ETH -- is not treated as an immediate taxable event in Portugal (RFF Lawyers, 2025; AT informational leaflet). The original cost basis and acquisition date carry over to the new asset. The 365-day holding clock restarts from the date of the swap for the asset received. Only a conversion to fiat currency, or use of crypto as payment for goods and services, triggers a taxable disposal. This contrasts with several Nordic jurisdictions where each swap is a separate taxable event. NFTs classified as unique and non-fungible assets are expressly excluded from the scope of the Lei 24-D/2022 crypto tax regime entirely.

Filings are submitted via the annual Modelo 3 IRS return, available through the Portal das Finanças (portaldasfinancas.gov.pt). The submission window runs from 1 April to 30 June for the prior tax year, with any balance due payable by 31 August. From 1 January 2026, crypto-asset service providers operating in Portugal must file annual transaction reports with the AT under the EU DAC8 Directive (Decreto-Lei 65/2024), which substantially increases information matching against declared returns.

For the Portugal country tax overview covering income tax brackets, NHR/IFICI regimes, and VAT, see the dedicated jurisdiction page. Individual situations involving active trading, mining operations, or multi-exchange portfolios involve meaningful classification questions best resolved with a qualified Contabilista Certificado or tax practitioner familiar with AT's current guidance on crypto assets. Nothing on this page constitutes professional advice.