TaxDown and OKX Collaborate to Simplify Tax Filing for Cryptocurrency Investors

• The collaboration between the Spanish tax platform and the global cryptocurrency exchange offers a 20% discount on income tax filing, Form 721, and crypto transaction tracing services for OKX users in Spain.

• OKX, which has recently strengthened its presence in Spain, becomes the first major global exchange to collaborate with this type of comprehensive tax service for its Spanish users.

• The 2025 tax campaign introduces greater scrutiny on crypto asset transactions, making specialized tools essential for accurate reporting.

The 2025 tax filing season is shaping up to be a new challenge for cryptocurrency investors. The Spanish Tax Agency’s increasing focus on crypto assets and the obligation to report them correctly generate more questions among taxpayers each year. In this context, TaxDown, the Spanish platform that has revolutionized tax advisory services, and OKX, a leading global fintech company and crypto trading platform, have reached a collaboration that will allow OKX users in Spain to file their income tax returns easily, quickly, and with an exclusive discount.

Thanks to this collaboration, OKX users will benefit from a 20% discount on TaxDown’s income tax filing service, as well as a 20% discount on Form 721 filing and cryptocurrency traceability services. This allows crypto investors to meet all their tax obligations from a single platform, with the guarantee of a tool specifically designed to maximize savings and simplify the entire process.

Declaring cryptocurrencies in a tax return is not always straightforward. Trading transactions, crypto-to-crypto swaps, staking, or airdrops can generate capital gains or losses that must be accurately reported. Many taxpayers are unsure how to calculate these transactions or how to integrate information from multiple platforms. TaxDown’s technology enables the automatic import and processing of transactions carried out on OKX, making it easier to include all gains and losses in the income tax return while ensuring the best possible outcome for the taxpayer.

OKX is one of the world’s largest cryptocurrency exchanges, with a presence in more than 100 countries and 120 million active users. Focused exclusively on the crypto ecosystem, OKX has recently strengthened its commitment to the Spanish market, offering local investors access to one of the most comprehensive and secure platforms in the industry. This collaboration with TaxDown represents another step in its commitment to Spanish users, helping them not only trade crypto assets but also comply with their tax obligations.

Form 721 and Crypto Traceability

Beyond the income tax return itself, the collaboration also covers Form 721, the informational declaration for virtual currencies held abroad. This form must be submitted by taxpayers whose cryptocurrency holdings on foreign platforms exceed €50,000, and it is one of the most common sources of questions among investors. Failing to submit it or doing so incorrectly may result in penalties from the Spanish Tax Agency.

Additionally, TaxDown’s cryptocurrency traceability service allows OKX users to track all their transactions accurately, ensuring that the information reported to the tax authorities is complete and correct. Borja Muñoz, Head of Business Development and Partnerships at TaxDown, adds:

"Our collaboration with OKX reinforces our commitment to supporting cryptocurrency investors in an increasingly demanding tax environment. At TaxDown, we want every user to be able to declare their crypto assets with complete peace of mind, leveraging our technology to guarantee maximum savings while ensuring full compliance with tax obligations. Collaborating with a global exchange like OKX allows us to reach more investors than ever before."