# Portugal Tightens 2026 IRS Reporting on Offshore Accounts, Crypto

> Law 26/2026 forces disclosure of foreign accounts and crypto wallets at zero income, with first CARF/DAC8 data reaching Finanças in 2027.

- Source: https://www.growinportugal.com/news/portugal-s-2026-irs-rules-tighten-reporting-on-offshore-acco-2026-10-07
- Publisher: GrowIN Portugal (https://www.growinportugal.com)
- Published: 2026-10-07
- Last reviewed: 2026-10-07
- Language: en

> **Key figures — as of 2026-10-07:** Law No. 26/2026 (published 3 June 2026) transposes the EU's DAC8 directive and the OECD's CARF into Portuguese law, with crypto-asset service providers collecting transaction data from 1 January 2026 and first cross-border exchanges reaching Finanças in 2027 — Anexo J, Quadro 11 of the Modelo 3 already requires every foreign bank or securities account to be listed by IBAN/BIC, even at zero income, under Article 63.º-A of the Lei Geral Tributária — non-compliant crypto platforms face fines of €2,000–€22,500 for reporting failures and €500–€11,250 for inaccurate data.

## A paperwork rule, not a tax rise

The headline figure here isn't a new tax rate. It's a date: Portugal's crypto-asset service providers — exchanges, wallet custodians, trading platforms — have been collecting identifying data on their Portuguese-resident users since 1 January 2026, and that data starts flowing to the Autoridade Tributária in 2027. DAC8 applies from 1 January 2026, with reporting service providers collecting information on reportable transactions from 2026 and first reporting and exchanges happening in 2027. That timeline sits inside Portugal's own transposition law, Law No. 26/2026, published 3 June 2026, implementing Council Directive (EU) 2023/2226 (DAC8) and Council Directive (EU) 2025/872 (DAC9).

For foreigners living in Portugal, the practical shift is less about new liability and more about visibility. An account or wallet that sat quietly offshore for years is no longer a safe assumption — it's a data point someone else is now reporting on your behalf.

## The rule that already exists but nobody reads

Buried in the Modelo 3 is Anexo J, the annex for foreign income — and inside it, Quadro 11, which has nothing to do with how much you earned. Portuguese tax residents have to identify every deposit or securities account held outside Portugal that they own, benefit from, or are authorised to move, listing each one by IBAN and BIC — a requirement that doesn't change the tax bill by a cent. The confusion trips up a lot of newcomers because the logic feels backwards: disclosure, not taxation, is the obligation. Even an account that earned exactly zero euros in interest still has to be listed by law, and the "no income, nothing to declare" argument will get you a fine — the law requires declaring the existence of the account, not just the income it generates.

That's the trap ahead of the 2027 filing season (covering 2026 income): expats who've held a dormant UK ISA, a US brokerage account, or a crypto wallet on a foreign exchange — producing no interest, no dividends, nothing taxable — may still owe Finanças a line in Quadro 11, and many don't know it exists until a notification arrives.

## Crypto gets its own reporting layer

Crypto sits on top of that same obligation, now reinforced by automatic exchange. Portugal's existing capital gains regime hasn't changed: gains on crypto held under 365 days are taxed at 28%, holdings kept a year or longer are tax-free, and crypto-to-crypto swaps aren't a taxable event. What's new is that the platform itself now has to report. Crypto asset service providers in 47 jurisdictions, including Portugal, started collecting transaction data from users from 1 January 2026 to enforce tax compliance under CARF, facilitating automatic exchange of information on transactions concerning Portuguese tax residents annually. Annual reporting to the Portuguese Tax and Customs Authority must be completed by 31 May each year for information relating to the previous calendar year.

Enforcement has teeth on the platform side. Failure to meet registration or reporting deadlines can trigger penalties of €2,000 to €22,500, while providing incomplete, omitted or inaccurate information can attract fines of between €500 and €11,250 — and if a user doesn't comply with a provider's information request after two notices over 60 days, the provider has to block that user from further reportable transactions. Exchanges that want to keep operating in the EU have every incentive to chase down incomplete client files, which in practice means more emails from your platform asking for your NIF and tax residency confirmation.

## GrowIN's analysis

Here's the timing gap worth flagging: Portugal's IRS filing window for 2026 income runs roughly April to June 2027 — meaning taxpayers will file their returns several months *before* the first DAC8/CARF data exchange is fully processed by Finanças. Anyone tempted to under-report this coming season isn't getting away with anything — they're just gambling on a short head start before the cross-checking catches up, with fines and back-tax exposure landing later rather than never.

**"The data arrives late, but it arrives — treat 2026 as the last year offshore holdings go unverified, not the last year they go unreported,"** says GrowIN Portugal Editorial.

## What to actually do

Pull a statement from every foreign bank, brokerage and crypto platform you've used in 2026, note the IBAN/BIC or wallet identifiers, and get them onto Quadro 11 of Anexo J regardless of whether they generated a cent. If you're unsure whether an account or exchange falls under reporting scope, our [tax and NIF guide](/tax-and-nif/) walks through Modelo 3 basics, and this is exactly the kind of filing where a qualified Portuguese accountant earns their fee — our [services](/services/) page can point you toward support before the April 2027 window opens. Confirm current thresholds and forms directly with Portal das Finanças before filing, since implementation detail is still being finalised through 2026.

The quiet offshore account is becoming a thing of the past in Portugal's tax system — not because the rate changed, but because somebody else is now doing the telling.

## Sources

- [Global VAT Compliance — Portugal DAC8/DAC9 transposition](https://www.globalvatcompliance.com/globalvatnews/portugal-dac8-dac9-transposition/)
- [RegFollower — Portugal gazettes DAC8 crypto reporting rules](https://regfollower.com/portugal-gazettes-dac8-crypto-reporting-dac9-pillar-two-information-exchange-rules/)
- [Liber.tax — Portugal's Crypto Reporting Rules Are Becoming More Operational](https://liber.tax/insights/portugals-crypto-reporting-rules-are-becoming-more-operational)
- [Portal das Finanças](https://www.portaldasfinancas.gov.pt)

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© GrowIN Portugal. Cite as: GrowIN Portugal, "Portugal Tightens 2026 IRS Reporting on Offshore Accounts, Crypto", https://www.growinportugal.com/news/portugal-s-2026-irs-rules-tighten-reporting-on-offshore-acco-2026-10-07