Specialized Guide

Is it safe to use AI for my taxes?

We analyze the safety, privacy, and precision of using artificial intelligence in the tax field.

Using artificial intelligence to manage taxes raises reasonable doubts: How do I know the AI isn't wrong? Can I trust that my data is protected? What is the difference between using ChatGPT and a specialized tool?

This guide explains why not all AIs are equal in fiscal matters, how a truly reliable AI system like Aitax works, and what you should demand from any tool that processes your tax data.

The Problem with Generalist AIs in Taxation

Tools like ChatGPT, Claude, or Gemini are generalist models: they are trained to answer on any topic, from cooking recipes to programming code. This makes them versatile but dangerous in legal contexts.

Why are generalist AIs unreliable for taxes?

1. Frequent Hallucinations

Generalist models invent information when they are unsure. In taxation, this can mean:

  • Citing non-existent articles of law.
  • Confusing regulations from previous years.
  • Applying incorrect criteria to your specific situation.

2. No Access to Updated Regulations

Models have cutoff dates in their training. If tax regulations changed after that date, the AI doesn't know and will provide obsolete information.

3. Lack of Specialization

Spanish taxation requires deep and specific knowledge: thousands of binding rulings from the AEAT, Supreme Court jurisprudence, and specific criteria according to asset types and brokers.

4. Impossible to Verify

Generalist AIs function as "black boxes": they give an answer but do not explain where they got the information or why they chose that criterion.


What Makes Aitax Different: The Aitax Guard System

Aitax does not use generalist models. Instead, it combines specialized AI trained specifically in Spanish taxation with a double validation system called Aitax Guard.

How does Aitax Guard work?

1. Identification of the Query

When you upload documents, Aitax automatically detects the need for legal backing and activates access to official sources.

2. Process Transparency (Access to the "Black Box")

Unlike generalist models, Aitax Guard shows you:

  • Certainty Level: An indicator reflecting the system's confidence.
  • Reasoning: A summary of why that specific regulation was selected.
  • Consulted Sources: Exact references to laws, articles, and binding rulings.

3. Evidence and Full Reasoning

Aitax Guard allows you to see the original source: it highlights the exact paragraph of the law and explains its interpretation. You don't depend blindly on the AI; you have the evidence to verify it.


Security and Data Protection at Aitax

  • Bank-Level Encryption: Data is encrypted during transmission and storage.
  • Strict GDPR Compliance: Servers located in Europe and full control over your data.
  • No Training Without Consent: Your documents are NOT used to train models without your explicit permission.

Conclusion: Not All AIs Are Equal

Generalist AI: Fast but imprecise, no legal guarantees, impossible to verify.
Aitax Guard: Specialized, transparent, verifiable with official regulations.

For more information and to test the system, visit aitax.es.

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Is it safe to use AI for my taxes? | Aitax