The rise of artificial intelligence, with tools like Gemini or ChatGPT, has sparked the interest of entrepreneurs and tax professionals in Spain, particularly for automating and optimizing income tax returns. However, before relying on AI for these processes, it is crucial to consider the associated risks, especially regarding the handling of sensitive tax information and current regulations. One of the main dangers of using AI in tax declarations is the lack of updates in many of these platforms concerning local tax legislation. This can lead to calculation errors, missed deductions, or even the submission of incorrect information, as these tools are not experts in Spanish tax law. Additionally, the complexity of some cases may exceed the analytical capacity of chatbots, resulting in discrepancies with the official data from the Tax Agency. The legal responsibility for the declaration always falls on the taxpayer, so any error arising from the use of AI can be interpreted by the tax authorities as an attempt at fraud, with penalties ranging from 50% to 150% of the defrauded amount. Another critical aspect is data protection. It is essential not to input tax information into public or uncertified platforms, as this can expose sensitive data to leaks or misuse by third parties. Only official tools or those that guarantee compliance with data protection regulations should be used. For those wishing to leverage AI in tax matters, it is always recommended to cross-check results with official systems, such as Renta WEB, or consult with a specialized tax advisor. Furthermore, it is preferable to avoid using public chatbots for handling confidential data and to wait for certified AI solutions from the institutions themselves. In complex cases, automation may not be sufficient, and the support of a professional is essential to avoid serious errors. It is worth noting that the Tax Agency is also incorporating artificial intelligence into its processes, especially starting from the 2025 income tax return, to detect fraud and anomalies in submitted declarations. Source: businessinsider.es