Portugal

Portugal introduced a formal crypto tax framework with the State Budget Law for 2023, replacing a period of legal uncertainty during which crypto gains were often treated as not taxable at all. The Autoridade Tributária e Aduaneira (AT) now has explicit statutory authority covering capital gains on crypto disposals, income from staking and lending, and the treatment of crypto-to-crypto swaps. The framework is structured, legally clear, and actively enforced, with CARF exchange reporting in place from 2026.

Core Tax Treatment

Cryptocurrency is classified as a capital asset (categoria G income) in Portugal. Gains from disposal are subject to a flat 28% tax rate for assets held less than 365 days. Assets held for 365 days or more are exempt from capital gains tax entirely. There is no cap on the tax-free gain for long-held assets — a €5 million gain on Bitcoin held for 366 days is as tax-free as a €5,000 gain.

Alternatively, individuals may opt to aggregate crypto gains with other income and apply the progressive income tax scale (14.5–48%), which may result in a lower effective rate for taxpayers in the lower brackets. This election is made at filing and applies to all capital income for that year — it cannot be applied selectively to crypto alone.

The 365-Day Rule

The holding period is calculated per acquisition lot, from the date of purchase to the date of disposal, using the FIFO method applied across the portfolio. The 365-day threshold is a hard line: an asset disposed of on day 364 is fully taxable at 28%; the same asset disposed of on day 366 is entirely exempt. Unlike Germany's per-wallet FIFO, Portugal applies portfolio-level FIFO — purchases of the same asset are matched to disposals chronologically across all wallets and exchanges.

Tokens received as income — staking rewards, mining proceeds — have their own acquisition date from the point of receipt, and the 365-day clock begins at that point. These tokens can be held and sold tax-free if the holding period is met.

Staking and Lending Income

Income from staking, lending, and other yield-generating crypto activities is classified as capital income (categoria E) and taxed at a flat rate of 28% at the point of receipt, on the euro value of tokens received. This is a separate charge from capital gains tax — it applies to the income event itself, not to any subsequent appreciation. DeFi interest, liquidity pool rewards, and similar yield are treated in the same way. Mining income is classified as self-employment income (categoria B) and subject to progressive income tax rates plus social security contributions.

Crypto-to-Crypto Swap Deferral

Portugal provides one of the few explicit statutory deferrals for crypto-to-crypto swaps. Exchanging one cryptocurrency for another does not trigger an immediate taxable event — tax is deferred until the final conversion to fiat currency. The cost basis of the acquired asset is the market value of the disposed asset at the time of the swap. This deferral applies to direct cryptocurrency exchanges; it does not extend to swaps involving fiat-pegged stablecoins (USDC, USDT, EURT), which are treated as fiat conversions and trigger tax immediately on any embedded gain.

Professional Trading

Individuals whose crypto activity constitutes a professional or business activity — habitual, organised, and profit-oriented — are taxed under categoria B (self-employment income) at progressive rates of 14.5–48%, plus social security contributions. The classification is not statutory and assessed case-by-case. High-frequency systematic trading with professional infrastructure is the clearest risk area.

Non-Habitual Resident Regime

The original Non-Habitual Resident (NHR) tax regime was closed to new applicants in January 2024 and replaced by the IFICI regime (Incentivo Fiscal à Investigação Científica e Inovação), targeted at specific qualifying professions. The original NHR regime did not exempt crypto gains — the 28%/0% structure applied regardless of NHR status. Those who held valid NHR status before the reform retain their existing benefits for the remainder of their 10-year period. The closure of NHR to new applicants has reduced Portugal's overall attractiveness as a relocation destination for some individuals, but does not change the core crypto tax treatment for any resident.

Reporting

All taxable crypto disposals and income events are declared via the annual Modelo 3 tax return — capital gains in Anexo G, capital income in Anexo E. The filing deadline is 30 June for the prior calendar year. CARF exchange reporting has been operational in Portugal from 2026, meaning transaction data from EU-licensed exchanges is shared automatically with AT. Portugal is a well-known crypto relocation destination and AT has increased scrutiny on crypto filers accordingly.