Cryptocurrencies in 2026 will mark a turning point in tax traceability. For years, many international investors residing in Spain believed that their foreign exchanges or cold wallets were invisible to the Spanish Tax Agency (AEAT). That assumption is now obsolete.
For the 2025 tax year, which will be declared in 2026, a perfect regulatory storm has been created: Form 721, the DAC8 directive, and the CARF framework. All of this means that the Tax Agency no longer relies solely on what you declare; it will now verify whether it matches the information it receives automatically.
Model 721: Key obligations for crypto assets in 2026
The obligation to declare cryptocurrencies abroad
Following the first Model 721 campaign, the Spanish Tax Agency (AEAT) strengthened its control systems. If a tax resident in Spain owns crypto assets abroad worth more than €50,000 as of December 31, they must file this declaration between January and March.
The common misconception about taxation
Many investors believe that if they don't sell, they don't pay taxes. While this may be true for Personal Income Tax (IRPF), Form 721 is the gateway to Wealth Tax and Solidarity Tax. We have seen audits initiated because the declared balance exceeded the tax-free threshold, generating unexpected tax liabilities.
DAC8: How will the new automated surveillance affect crypto assets in 2026?
Direct information from the exchanges
DAC8 requires all cryptocurrency asset service providers (CASPs) to automatically submit information to the European Union. This includes well-known exchanges such as Binance, Kraken, and Coinbase.
Risk of automatic parallels
If the data in DAC8 does not match the data declared in Form 721, a parallel audit will be automatically generated. The margin of error for 2026 is practically zero.
For more information on the directive, you can consult the official EU source:
https://economy-finance.ec.europa.eu/index_en
International taxation and crypto assets in 2026 according to nationality
Investors from Germany and Switzerland
In Germany, holding cryptocurrencies for more than a year can be tax-exempt. Upon arrival in Spain, this benefit disappears. Furthermore, many investors forget to apply the step-up procedure, resulting in taxation on gains made before they become Spanish tax residents.
Switzerland will also adopt CARF, eliminating crypto opacity in its financial system.
US taxpayers
The United States considers cryptocurrencies as property, and swaps are taxable transactions. Spain applies a similar approach. If LLC structures are used, International Tax Transparency rules may apply.
Digital Nomads and the Beckham Law
Those covered by the Beckham Law are not required to file Form 721 or pay taxes on foreign-source capital gains. However, defining what constitutes a "foreign source" in the context of crypto assets is complex and requires expert analysis.
The crypto asset valuation trap in 2026
Illient tokens and NFTs
Valuing tokens with low liquidity or collapsed NFTs is one of the biggest challenges. The tax authorities require the market value as of December 31st, which is difficult to justify in certain cases.
Why cold wallets no longer guarantee anonymity
Although devices like Ledger or Trezor do not report under DAC8, the AEAT uses advanced on-chain analysis tools that allow tracing funds from regulated exchanges to private wallets.
Fiscal roadmap before December 31, 2025
1. Traceability audit
The complete transaction history must be reconstructed using professional software and legal analysis.
2. Voluntary regularization
If you forgot to declare previous years, filing an amended return reduces risks and penalties.
3. Exit Planning (Exit Tax)
If you plan to leave Spain in 2026, you should consider the Exit Tax, especially if you own a significant crypto portfolio.
Conclusion: Cryptocurrencies will enter an era without opacity in 2026
The international taxation of crypto assets has changed forever. 2026 will be a turning point. Anticipating these changes is not optional: it's essential to mitigate risks.
Expert advice on crypto assets in 2026 with Resitax
Cryptocurrency regulations in 2026 will be stricter than ever. If you trade on international exchanges, hold assets abroad, or are subject to Form 721 and DAC8, expert advice is essential.
You can find out more about our tax advisory services in Mallorca here:
https://resitax.eu/asesoria-fiscal-mallorca/
If you wish to contact our team directly, you can do so at:
https://resitax.eu/contacto/
At Resitax we analyze your situation, design a solid tax strategy and support you with technical rigor and absolute confidentiality.
Note:
The content of this article is for informational purposes only and does not constitute
legal advice. Each case should be analyzed individually.