CRS Arrives at Crypto: Farewell, Tax Anonymity
For a decade, the crypto market lived with a convenient fiction: the idea that digital assets were invisible to international tax authorities. That era officially ended in 2026. Switzerland, historically synonymous with banking secrecy, began sharing information on crypto asset accounts with tax authorities of 74 countries — including Brazil.
The move is part of the extension of the Common Reporting Standard (CRS) from the OECD to digital assets, known as CARF — Crypto-Asset Reporting Framework. Brazil is a signatory and, starting in 2026, begins to receive data automatically.
What Is CARF and How It Works
Approved by the OECD in 2022 and gradually adopted since then, CARF establishes a global standard for automatic exchange of information between countries about:
- Accounts at Virtual Asset Service Providers (VASPs) — exchanges, custodians, centralized DeFi platforms
- Balances, transactions, and beneficial owners
- Transfers above US$ 50 thousand
- Identification of tax residents of each country
In practice, it works like FATCA (bilateral agreement with the US) or traditional CRS (banks), but specifically for crypto. A Swiss exchange, upon identifying that a customer is a Brazilian tax resident, will automatically send the data to the Swiss government, which passes it on to the Brazilian Tax Authority.
The 74 Participating Countries
The network includes virtually all of the world's major financial markets:
- Europe: Germany, France, United Kingdom, Italy, Spain, Netherlands, Portugal, plus the 27 EU members
- Americas: Brazil, Argentina, Chile, Mexico, Canada (the US operates via FATCA)
- Asia: Japan, South Korea, Singapore, Hong Kong, India
- Others: Australia, South Africa, United Arab Emirates
Notably absent: United States (has its own system via IRS/FATCA), China (bans crypto), Russia (international pariah) and some resistant tax havens.
The Specific Impact on Brazil
For the Brazilian taxpayer, the change is dramatic. Until recently, declaring crypto to the Tax Authority was largely an act of "trust" — the Tax Agency had difficulty verifying off-chain information or accounts at foreign exchanges. That has changed.
The New Declaration Reality
Starting in 2026:
- The Brazilian Tax Authority will automatically receive data about Brazilians with accounts at Swiss, European, Asian exchanges
- Those who declared less (or did not declare) will be immediately on the Tax Agency's radar
- The penalty for omission of foreign assets can reach 150% of the undeclared amount
- In serious cases, it constitutes tax evasion crime (imprisonment of 2 to 5 years)
RFB and IN 1.888
The RFB Normative Instruction 1.888/2019, which requires Brazilian exchanges to report operations, now gains an international complement. The Tax Agency will have visibility of both domestic exchanges and most foreign exchanges.
What Still Falls Outside
Not everything is tracked. The following remain in a gray area:
- Self-custody wallets (Ledger, Trezor, MetaMask) — have no intermediary obligated to report
- Truly decentralized DeFi — without an identifiable operator
- Direct P2P transactions — without an exchange intermediating
- Exchanges in non-signatory jurisdictions — which tend to disappear
Attention: the anonymity of self-custody only works if there is never an on-ramp/off-ramp via an identified exchange. The moment crypto becomes fiat at a regulated exchange, the trail appears.
What to Do Now: Practical Guide
- Regularize pending issues — if there is undeclared crypto from previous years, now is the time to regularize before the Tax Agency knocks on your door. The Tax Authority usually offers special conditions through tax amnesties
- Consult a specialized accountant — crypto taxation has nuances (day trade vs long-term, staking, airdrops, DeFi)
- Keep detailed records — statements from all exchanges, proof of transfers, acquisition cost records
- Consider legal optimization strategies — zero rate for sales up to R$ 35 thousand/month, use of losses, patrimonial holding
Global Context: The Noose Tightens
Swiss automatic information exchange is just one piece of a larger movement:
- EU: DAC8 (Directive on Administrative Cooperation 8) comes into force in 2026, unifying crypto reporting
- USA: Form 1099-DA mandatory for crypto brokers starting fiscal year 2025
- United Kingdom: HMRC implements CARF in 2026
- OECD: continuous expansion of the signatory list
Conclusion: Maturation Has a Cost
Crypto is no longer a tax haven — and perhaps never was, for those who looked carefully. The difference is that now the infrastructure for effective enforcement finally exists. For the market as a whole, it is a necessary step toward institutional and mainstream adoption. For the user, it is time to comply and sleep peacefully.
Anyone still operating with the "crypto is anonymous" mindset in 2026 has not understood the new game. Governments have. Exchanges have. The next "big news" on taxation could be a Brazilian Tax Authority operation with newly received data from Switzerland — and it will make quite a noise.
Disclaimer: This content is informational and does not constitute investment recommendation or tax guidance. Consult a qualified professional before making decisions.