Portugal cryptocurrency tax guide

What this guide covers

This guide covers Portugal's general approach to individual cryptocurrency taxation for the 2025 tax year, based on secondary reporting of the crypto tax regime Portugal's 2023 State Budget (Orçamento do Estado 2023) introduced, plus actual official binding tax rulings read directly for this guide. The Autoridade Tributária's own site and the enacted Código do IRS text weren't directly fetched in this research pass. This is educational information, not individualized tax advice.

Tax treatment of cryptocurrency

How long you hold your crypto now determines whether you owe tax on it — that's the central current feature of Portugal's regime, and a real change from its earlier reputation. Before 2023, Portugal was widely reported as not taxing individual crypto capital gains at all. The 2023 State Budget introduced a specific regime, reported under Category G (with some related income types under Category E), that taxes crypto held for less than 365 days at a flat rate, while exempting gains on crypto held longer. This guide treats the pre-2023 "no tax" reputation as historical, not current.

Common taxable events

• Selling crypto held for less than 365 days for euros — taxed at the flat rate.
• Using crypto to pay for goods or services — sources genuinely conflict here. One reports this is taxable under the same conditions as a sale; another reports spending crypto held over 365 days is tax-free, consistent with the general holding-period exemption. This guide doesn't resolve that tension and flags it for direct confirmation.
• Staking, lending rewards, and professional mining — reported as taxed under separate categories and rates from the Category G disposal rate. Staking and lending are reportedly under Category E, at a flat rate that may be deferred if paid in-kind. Professional mining is reportedly under Category B, at progressive business-income rates. This guide doesn't independently confirm these category assignments against the enacted law.

Potentially non-taxable events

• Selling or disposing of crypto held for more than 365 days — exempt from IRS taxation under article 220 of Lei 24-D/2022, confirmed directly from an official binding ruling. This is the central exemption in Portugal's current approach. For crypto you acquired before that law took effect, its holding period still counts toward the 365 days, but this transitional exclusion applies only to transactions between residents of the EU/EEA, or of a country with which Portugal has a treaty or agreement allowing tax information exchange.
• Crypto-to-crypto swaps — sources genuinely conflict. One reports such swaps aren't taxed under the regime at all. Another describes them as tax-deferred, resetting the 365-day holding clock on the new asset, rather than simply untaxed. This guide doesn't assert either as settled and flags it as requiring direct confirmation against the Código do IRS.
• Buying and holding crypto without disposing of it — not taxable.

Tax rates and thresholds

Gains on crypto held under 365 days are reported as taxed at a flat 28% rate. One secondary source describes this rate as applying "without prejudice to" an aggregation option, suggesting you may be able to elect to include the gain in progressive income instead — this guide doesn't confirm the current mechanics or eligibility for that election. Gains on crypto held 365 days or longer are reported as exempt from this regime entirely. This guide doesn't reproduce rates for the separate staking and mining categories referenced above, which weren't independently confirmed.

Cost basis and calculation

Your taxable gain for a sub-365-day disposal is proceeds minus acquisition cost, consistent with ordinary capital-gains mechanics. This guide doesn't independently confirm Portugal's specific cost-basis identification method — FIFO or average-cost — for crypto under Category G. The 365-day holding period is measured from acquisition to disposal for each unit, which has direct practical implications for recordkeeping across multiple purchases.

Reporting and compliance

• All resident taxpayers are reported as required to declare crypto disposals in the annual Modelo 3 IRS return, even where no tax is ultimately owed (e.g., a disposal held over 365 days). An official binding ruling confirms that for crypto derivatives (futures), gains are reported in Quadro 9.2.B of Anexo J, using code G30, with an aggregation election available in Quadro 9.2.C — this guide does not independently confirm whether the same exact field/code applies to a simple spot disposal rather than a derivatives position.
• This guide does not independently confirm the exact 2025-tax-year filing deadline — confirm directly with the Autoridade Tributária.

Residency and cross-border issues

Your Portuguese tax residency governs whether this regime applies to your worldwide crypto gains. Using a foreign exchange doesn't, by itself, change this for a resident taxpayer. This guide doesn't cover the Non-Habitual Resident (NHR) regime's interaction with crypto income, non-resident rules, or double-taxation treaty interactions in depth.

Example

This example is hypothetical, for illustration only. Rui buys crypto in January 2025 and sells it in August 2025, a 7-month holding period, under 365 days, for a €3,000 gain. The gain is reported as taxable at the flat 28% rate, approximately €840, absent an election to use the aggregation option instead. Had Rui held until after January 2026, crossing the 365-day mark, that same gain would be reported as exempt under the holding-period rule — still required on his Modelo 3 return, but with no tax owed.

Official resources

• Portal das Finanças (AT): https://www.portaldasfinancas.gov.pt/

Limitations and review information

Tax year covered: 2025. Last verified: October 10, 2026, against actual official binding rulings (PIVs) published by the AT, including the exact legal citation for the holding-period exclusion. Remaining gap: the enacted Código do IRS text itself (as opposed to individual rulings applying it) was not directly read; crypto-to-crypto swap treatment and the exact spot-disposal reporting codes (as distinct from the confirmed derivatives codes) remain unresolved. This is educational information only, not individualized tax advice — confirm current specifics directly with the AT or a Portuguese tax professional.