The Portuguese tax authority (Autoridade Tributária e Aduaneira — AT) has published a binding ruling, Informação Vinculativa PIV n.º 28122, addressing several crypto-asset activities carried out by an individual who intends to become a Portuguese tax resident. The Portugal crypto tax ruling PIV 28122 confirms several points that practitioners had already inferred from the post-2023 framework. It also introduces one important nuance on staking rewards. Crucially, it leaves a handful of operational questions unanswered. This article walks through the facts, the AT’s position on each transaction type, and the practical implications for investors.
In short: Long-term crypto holdings still benefit from the 365-day exemption. Staking and DeFi rewards are investment income (Category E), but tax can be deferred where the reward is received “in kind”. Use of automated trading software (including MEV bots) does not, by itself, convert personal trading into business income.
What PIV 28122 is and why it matters
A pedido de informação vinculativa (PIV) is a request to the AT for a binding interpretation of how the tax law applies to a specific fact pattern. The AT’s reply binds the AT in its dealings with the requesting taxpayer, and it serves as influential, though not strictly binding, guidance for similar cases. PIV 28122 matters for three reasons.
First, the requesting taxpayer is on the brink of relocating to Portugal with a substantial pre-existing crypto portfolio. Therefore, the ruling is directly relevant to the IFICI (NHR 2.0) and post-residence planning conversations many MCS clients are having today. Second, the AT addresses three distinct activity types in the same document, which is unusual. Third, the AT goes on the record on the treatment of automated trading software — a point on which there had been almost no published Portuguese guidance.
The taxpayer’s fact pattern
The taxpayer’s declared facts framed the AT’s analysis. The taxpayer represented that:
- the activity was carried out exclusively for personal investment, with no clients and no services rendered to third parties;
- there was no organised business structure and no leveraged trading;
- the portfolio contained no tokens classified as securities under Portuguese law, and no NFTs.
Within those parameters, the taxpayer asked about three transaction categories: a buy-and-hold portfolio, staking and DeFi positions (including ETH liquid staking and some positions held in protocol for over 2.5 years), and a trading book that, between 2020 and 2022, used proprietary automated execution software (“MEV bots”) since discontinued.
The taxpayer also raised an alternative argument: if the AT re-characterised any activity as Category B (business income), then Portugal should only tax appreciation accrued after Portuguese tax residency commenced.
Portuguese crypto tax framework
The AT used the ruling to restate the framework introduced by the 2023 State Budget. Under the Personal Income Tax Code (CIRS), crypto-related income falls into one of three categories.
- Category B | Business or professional income — including crypto mining and validation activities
- Category E | Investment income — remuneration linked to crypto-assets (other than dispositions)
- Category G | Capital gains — disposal of crypto-assets that do not qualify as securities
Two principles run alongside the categorisation. First, the 365-day exemption: capital gains from crypto-assets held for at least 365 days are excluded from Category G taxation, and holding periods accrued before the 2023 framework count. Second, crypto-to-crypto neutrality: swap of one crypto-asset for another is not a taxable disposal; the acquisition value of the original asset rolls into the newly acquired one. Both reliefs are subject to the territorial limitation now embedded in the CIRS, which restricts their scope to transactions between EU/EEA residents or residents in treaty / information‑exchange jurisdictions.
Buy-and-hold: capital gains and the 365-day exemption
On the buy-and-hold portfolio, the AT confirmed the expected position. Disposal of crypto-assets for fiat currency or for non-crypto consideration is a capital gain in Category G. Where the asset has been held for at least 365 days at the moment of disposal, counting any holding period before the 2023 framework, the gain is exempt, subject to the jurisdictional condition referred to in the framework section.
This part of the ruling is unremarkable but useful. It confirms that the 365-day clock works on accumulated history rather than residency history. As a result, a person becoming a Portuguese tax resident in 2026 with assets bought in 2021 can dispose of those assets immediately and rely on the exemption, provided the statutory conditions are met. The conclusion is also a helpful reminder that the post-residency disposal of a long-held bag is not, by itself, a Category B trigger.
Staking and DeFi rewards: investment income, deferred taxation
The AT’s most consequential conclusion sits in the staking analysis. The AT treats staking and certain DeFi-related arrangements as a passive allocation of capital that is economically comparable to a remunerated deposit or a passive financial product. Therefore, the resulting remuneration is investment income, i.e. Category E.
However, the AT introduced a nuance. Where the staking or DeFi reward is received “in kind”, that is, paid in cryptoassets rather than in fiat, the CIRS channels that income into taxation as a capital gain at the time of the future disposal of the reward tokens. In other words, remuneration from staking and similar DeFi positions is framed as investment income, but when it is paid in tokens the tax charge arises as a Category G gain on the later sale of those tokens. In practice, this defers the tax point to the moment the reward is liquidated.
The combination is novel in published AT guidance. It is also commercially significant: most staking and DeFi rewards are paid in kind, so the deferral applies in most real-world cases.
Crypto trading and MEV bots: when automation does not trigger Category B
On the trading book and the MEV-bot use, the AT accepted that the activity could remain in Category G (capital gains) rather than reclassify as Category B (business profits). The AT leaned heavily on the taxpayer’s factual representations: personal portfolio management, no clients, no services to third parties, no organised business infrastructure, no professional dependence on the activity.
The AT then went a step further and stated, in writing, that the use of automated execution software does not, by itself, convert personal trading into business activity. This is the closest the AT has come to a published position on bot-assisted trading.
The AT did, however, set out the line. Category B applies where the taxpayer (a) operates through an organised business structure, (b) acts with regularity and habituality, (c) provides services to third parties, or (d) derives substantial economic dependence from the activity. Therefore, the safe zone is narrow but real: personal, unorganised, infrequent-enough trading remains Category G even when a bot does the click.
One question the AT declined to answer: in the alternative Category B scenario, can Portugal tax only appreciation accrued after tax residency commenced? The ruling is silent. That gap is a planning risk that MCS continues to flag for relocating traders.
What is genuinely new in this ruling
Three points are new — or at least newly written down:
- Automated trading software does not, alone, recharacterise activity as Category B. Bot use is now a documented neutral factor.
- The Category B test is articulated as a hallmark assessment. Organisational structure, habituality, provision of services to third parties, and economic dependence are the four hallmarks the AT will weigh.
- In-kind staking and DeFi rewards are treated as investment income, but when they are paid in tokens the Código do IRS taxes them as capital gains on disposal under a deferral rule. The ruling does not spell out how this interacts with the 365‑day Category G exemption, which remains an open interpretive point.
The first two points narrow the practical risk of recharacterisation. The third introduces a clean compliance posture for in-kind rewards but raises the open questions in the next section.
The open questions PIV 28122 does not resolve
PIV 28122 is a first step. It is not the final word. Four operational questions remain.
- Tax basis of in-kind rewards. The AT does not say whether the acquisition value of staking-reward tokens equals their market value at receipt, or whether the tokens carry a zero acquisition cost into future disposal. Each approach leads to a different gain on later sale, and the difference is material across a long holding window.
- Interaction with the 365-day exemption. If a staking reward is treated as investment income with taxation deferred to disposal and the reward token itself is held more than 365 days, two interpretations compete. Under a bifurcation approach, the embedded investment-income component remains taxable regardless of the holding period, with only any further appreciation potentially exempt. Under a more aggressive reading, the 365-day Category G exemption could swallow the whole disposal gain. PIV 28122 does not pick.
- Tracing and inventory accounting. Liquid staking and DeFi positions generate large volumes of fungible tokens at varying market prices. The AT has not endorsed a specific tracing method (FIFO, average cost, or specific identification). In practice, taxpayers should be ready to defend a consistent and contemporaneous methodology.
- Similar conceptual problems for stablecoin yield, lending and re-staking. The same passive-allocation logic likely applies to stablecoin yield products and crypto lending protocols. PIV 28122 does not opine, but the analytical scaffolding it sets up will be the AT’s starting point in any future ruling.
These gaps will need to be closed either by further binding rulings or by legislative clarification.
Practical implications for crypto investors moving to Portugal
For an investor relocating to Portugal with a meaningful crypto portfolio, PIV 28122 supports a clean planning sequence.
First, before tax residency starts, take a step-zero inventory of every asset, the historical acquisition value, the acquisition date, and the platform of custody. This evidence will support both the 365-day exemption and the Category B / G boundary. Second, document the personal-investment posture: absence of clients, no services to third parties, no organised infrastructure, no commercial leverage. Third, build a consistent tracing methodology for staking, DeFi and reward tokens, and apply it from day one of Portuguese tax residency. Fourth, plan disposals around the 365-day clock where possible, and recognise that in-kind staking rewards have their own deferred timing.
Where IFICI (NHR 2.0) is in play, remember that the regime is focused on employment and business income (Categories A and B) in specific scientific and innovation‑related roles. It does not, in itself, change the default IRS treatment of Category E investment income or Category G capital gains from crypto-assets, so the standard PIT rules, as interpreted by PIV 28122, will generally control.
Frequently asked questions
What is PIV 28122?
A binding information ruling issued by the Portuguese tax authority on the IRS treatment of buy-and-hold, staking, DeFi and automated trading activities involving crypto-assets.
Does the ruling change the 365-day exemption?
No. It confirms the exemption and clarifies that pre-2023 holding periods count toward the 365-day clock, subject to the existing territorial limitation in the CIRS.
Are crypto-to-crypto swaps still tax-neutral?
Yes. The AT confirmed that crypto-to-crypto exchanges are not taxable events; the original acquisition value rolls into the new asset, within the scope defined by the CRS.
How are staking and DeFi rewards taxed in Portugal?
As Category E investment income. Where the reward is received in kind, the CIRS taxes that income as a capital gain at the time the reward tokens are disposed of, effectively deferring taxation to that point.
Do MEV bots trigger business-income taxation?
Not automatically. The AT confirmed that automated execution software does not, by itself, re-characterise personal trading as Category B. The Category B test depends on hallmarks of organised, habitual, third-party-facing economic activity.
Do MEV bots trigger business-income taxation?
No. PIV 28122 does not state whether the acquisition value of reward tokens equals their market value at receipt or zero. Further guidance is expected.
How MCS can help
Madeira Corporate Services is a licensed tax advisory firm based in Funchal. The team has supported relocating crypto investors and Portuguese-resident traders through IRS compliance, IFICI applications, cost-basis reconstruction, and pre-residency planning since the post-2023 framework took effect.
For investors with a crypto portfolio, MCS provides: a step-zero pre-residency inventory; documentation of personal-investment posture against the four Category B hallmarks; a defensible tracing methodology for staking and DeFi positions; ongoing IRS Anexo G / Anexo B preparation; and coordination with IFICI / NHR 2.0 elections where applicable.
This article is general information based on Portuguese law and AT practice at the date shown. It is not legal, tax or accounting advice. Where a reader’s facts diverge from those described here, or touch unsettled points of practice, the prudent course is to apply for a taxpayer-specific binding ruling (informação vinculativa) under Article 68 LGT before acting. Readers must take professional advice on their specific circumstances before relying on anything in this article. Madeira Corporate Services, its directors, employees, agents and affiliates accept no liability for any loss arising from reliance on this article.
Miguel Pinto-Correia holds a Master Degree in International Economics and European Studies from ISEG – Lisbon School of Economics & Management and a Bachelor Degree in Economics from Nova School of Business and Economics. He is a permanent member of the Order of the Economists (Ordem dos Economistas)… Read more
