Spanish tax agencies have launched a series of tests targeting Bitcoin users (BTC) and other cryptocurrencies, marking a new chapter in the fight against tax evasion. The move, which has already caused a stir among investors, is based on intersections obtained from third parties, such as cryptoactive exchanges, and currently requires users to report their operations under strict European regulations.
The cryptocurrency-focused lawyer warned that Christina Carrascosa, the sector’s outstanding voice, through her X account on financial attacks.
Carrascosa, who has been advising in the field for over a decade since discovering Bitcoin in 2012, highlighted taxpayers They must normalize their situation to avoid severe sanctions.
The Spanish government has detailed knowledge of the balance and value of each currencies, as reported by cryptocurrency moves made by investors, thanks to tools such as the Models 172 and 173 implemented since 2024.
With these regulations, central exchanges report transactions and allow the Ministry of Finance Pass the tax declaration and data from taxpayers to each other. Additionally, the European Union’s recent gross implementation of the Crypto Market Regulation (MICA) in 2025 standardized cryptocurrency oversight and taxation, facilitating this type of testing.
The inspection focuses on two main aspects. On the one hand, the Ministry of Finance is trying to ensure that fathers’ benefits from operating with cryptocurrency, such as buying, selling, exchanges, and transfers to wallets, are declared in the IRPF. In Spain, these profits are taxed in types ranging from 19% to 26%, depending on the amount.
Meanwhile, child taxes will also be reviewed. This also applies to those with dilution factors above the exempt threshold along with other products (though this limit may vary by autonomous community).
According to Spanish law, the time range for inspections is 2020-2023. The fiscal prescription period is 4 years. This means that as of May 2025, the 2020 statement may still be audited, depending on the date of each taxpayer’s filing.
Additionally, investors with cryptocurrencies over 50,000 euros overseas should report it through the 721 model. This is an obligation that, even if it is not fulfilled, it can result in fines after 2023.
Serious consequences
Failure to comply with these obligations can result in serious consequences. Experts say that sanctions for not declaring profits range from 50% to 150% of the unsuspended amount. In addition to delayed interest and tax payments.
For those using decentralized wallets or missing platforms, justifying operations is an additional challenge and increases the risk of penalties.
This operation is not an orphan event. Since 2018, Hacienda is increasing surveillance on cryptocurrencyAccording to the European Central Bank, the sector grew exponentially in 2025 in Spain, where more than 9% of the country’s population has digital assets.
These tests will reaffirm the Treasury’s commitment to fiscal transparency at a time when cryptocurrencies become a major asset. For Spanish Bitcoin users, the message is clear. The time to operate without declaring is over.