Portugal crypto tax in 2026: 365 days, swaps and IRS reporting

Portugal does not apply 28% to every crypto transaction, and it does not exempt every token held for a year. Its Personal Income Tax Code contains a specific route for disposals of crypto-assets that are not securities, a conditional exclusion after at least 365 days, and deferral for qualifying crypto-to-crypto consideration. Business activity, tokenised securities, unique NFTs and some jurisdictions require a different analysis.

Portugal crypto tax at a glance

The Portuguese tax authority's crypto guide and the consolidated IRS Code should be read together. Counterparty jurisdiction, tax residence and the legal nature of the token can disapply the simplified outcome. A stablecoin is not automatically fiat merely because it targets one euro or dollar.

The 365-day exclusion is conditional

Article 10 of the IRS Code covers the disposal for consideration of crypto-assets that do not constitute securities. Gains and losses concerning covered assets held for at least 365 days can be excluded. Earlier holding time before 1 January 2023 counts under the transitional provision.

This is not a promise that “all crypto is tax-free after one year.” Check:

• whether the asset is within the statutory crypto definition and is not a security;
• whether the unique, non-fungible-token exclusion changes the category;
• whether the counterparty or relevant entity is in a cooperative jurisdiction;
• whether the person is an investor rather than carrying on Category B activity;
• the actual acquisition history after transfers and swaps;
• whether a change of Portuguese residence triggers a deemed-disposal rule.

The exclusion also removes covered losses from the taxable balance. It should not be described as an elective treatment applied only when the asset rose. Eligible disposals remain documentable and appear in the relevant exempt-operation reporting, including Annex G1 under the applicable instructions.

Short-term gains, 28% and aggregation

A taxable positive Category G balance for covered crypto disposals is generally subject to the 28% autonomous rate. The taxpayer can opt for aggregation, bringing the balance into the progressive IRS computation. The correct choice depends on the full return, not on one token gain.

The gain is not gross proceeds. A simplified computation deducts acquisition value and necessary, effectively incurred acquisition and disposal expenses. For example, an asset bought for EUR 10,000 and sold before 365 days for EUR 14,000 with EUR 100 of eligible costs has an indicative gain of EUR 3,900. At 28%, the isolated indicative amount is EUR 1,092 before other gains, admitted losses, aggregation and personal facts.

A report should therefore present proceeds, basis, eligible costs and gain separately. Calling EUR 14,000 taxable income would materially overstate the result.

Crypto-to-crypto swaps can defer the gain

Where consideration for a covered disposal takes the form of another crypto-asset, Article 10 can postpone taxation. The received asset carries the tax acquisition value of the surrendered asset until a later disposal for money, goods, services or other non-qualifying consideration.

Assume BTC with EUR 8,000 tax basis is exchanged for ETH worth EUR 12,000. In a covered exchange, the EUR 4,000 difference is not recognised immediately; the ETH receives EUR 8,000 carried basis. If the ETH is later sold for EUR 13,000, the accumulated potential gain is tested at that later disposal, together with holding-period and other conditions.

This rule makes the transaction chain essential. A tool that resets the ETH basis to EUR 12,000 can erase deferred gain. Bridges, wrapping, liquidity deposits and protocol receipts should not be labelled qualifying swaps merely because two token movements appear.

FIFO is applied by institution or provider

Article 43 states that disposed crypto units are treated as those acquired earliest. Where crypto is deposited with more than one institution, financial company or crypto-asset service provider, the rule applies by reference to each entity. This is not necessarily one global FIFO pool across every exchange and wallet.

1. Keep an inventory for each relevant provider or entity.
2. Link own-wallet transfers so they preserve original date and basis.
3. Carry basis correctly through eligible crypto-to-crypto exchanges.
4. Record fees paid in crypto as both a cost question and a possible token disposal.
5. Retain EUR valuation source, timestamp, quantity and counterparty jurisdiction.

Missing history must be marked unresolved rather than assigned a confirmed zero basis. The Portugal exchange-report guide explains why provider CSVs and wallet transfers need reconciliation before the annex totals are produced.

Staking, mining, lending and Category B

The IRS Code includes operations connected with crypto issuance, including mining, and transaction validation through consensus mechanisms in Category B. The simplified regime provides specific coefficients for crypto operations and a different coefficient for mining, while organised accounts and the actual activity can lead to another computation.

The Code also addresses investment income arising from crypto operations. Where qualifying remuneration is paid in crypto, taxation can occur as a gain when the received asset is later disposed of. The exact application to custodial staking, lending, liquidity pools and protocol rewards depends on rights, activity and the form and time of remuneration.

It is therefore inaccurate to say every staking reward is taxed immediately at a progressive rate up to 48%. First determine Category E versus B or another route, when the right becomes available, and how the later disposal is treated. See the Portugal staking and DeFi guide.

Losses and five-year carryforward

Admitted gains and losses enter the relevant Category G balance. Losses involving a counterparty in a clearly more favourable tax jurisdiction can be disregarded, and a loss excluded by the 365-day rule does not enter the taxable balance.

The Portuguese Tax Authority states that eligible remaining Category G losses can be carried forward for five years where the taxpayer elects aggregation. An unrealised price decline is not a tax loss. Exchange insolvency, lost keys, fraud and an illiquid token require separate evidence and legal analysis. The Portugal crypto-loss guide covers these distinctions.

NHR was revoked; IFICI is not a general crypto exemption

Portugal's original Non-Habitual Resident regime was revoked for new cases from 1 January 2024, subject to protected and transitional situations. The replacement incentive for scientific research and innovation, commonly called IFICI, has eligibility conditions tied to specified professions and activities.

The IFICI 20% special rate concerns certain net Category A and B income from eligible activities. It is not a blanket 20% rate or exemption for every crypto gain of every new resident. A move also requires residence, treaty, departure-country and Portuguese deemed-disposal analysis. Read the crypto relocation checklist before relying on a regime name.

How to report crypto in the Portuguese IRS return

The annual Modelo 3 return is normally submitted electronically from 1 April through 30 June of the following year. The annex follows the confirmed income category:

• Annex G: taxable capital gains, including covered disposals before 365 days.
• Annex G1: eligible excluded operations, including covered non-security crypto held at least 365 days.
• Annex E: investment income where applicable.
• Annex B or C: business and professional income under the applicable accounting regime.
• Annex J: foreign income or elements where the instructions require it.

A report should separate these totals, identify unconfirmed tokens and jurisdictions, and show non-calculable positions. The complete Portuguese-language Portugal crypto-tax guide provides the article-level references for each annex.

Frequently asked questions

Official sources

• Portuguese Tax Authority: crypto-assets tax guide
• Portuguese IRS Code Article 10: disposals, 365 days and crypto consideration
• Portuguese IRS Code Article 43: ordering, providers and losses
• Portuguese Tax Authority: Annex G1 instructions
• Portuguese Tax Authority: Modelo 3 filing period
• Portuguese Tax Authority: NHR repeal and transition
• Portuguese Tax Authority: IFICI eligibility and taxation

Official-source review completed 2 September 2026. This article follows the consolidated provisions available through the Portuguese Tax Authority.

Disclaimer: This article is for general informational purposes only and does not constitute tax advice. For individual tax advice, consult a licensed tax professional.