Is an AI tax advisor reliable?

Yes. TributAI uses Claude (Anthropic), trained on current Spanish tax law. Every answer includes legal references, and for CIRCE self-employed registration our Punto PAE reviews and signs it.

Does TributAI replace my accountant?

No, and it doesn’t try to. TributAI is not an accountancy firm: it prepares your tax forms and you file them with your certificate, with the control and the information to know what is going on at all times. If you have an accountant, keep them — you’ll arrive with everything clear and done. TributAI resolves 95% of self-employed people’s usual queries. For complex cases (inspections, company transactions) we connect you with specialist professionals.

Yes. Your data is stored in the European Union, encrypted to banking grade at rest and in transit, and we only use it to provide the service. We comply with the GDPR and the LOPDGDD.

Can I try it before paying?

Yes. All plans start with a 14-day trial, with the full assistant from day one (70 questions a month on BASIC). A card is required to activate it and nothing is charged if you cancel before it ends.

TributAI

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Your tax advisor powered by Artificial Intelligence

Expert tax answers in seconds. Tax returns calculated and ready to file. Smart optimisation.

Peace of mind for Entrepreneurs.

Try it for 14 days14-day trial · cancel before it ends and you are not charged

⚠️ Important information before using the AI

TributAI is NOT binding professional tax advice. Answers are based on current legislation but may contain inaccuracies — for complex decisions, consult a registered adviser or accountant.

You have the right to request human review of any AI-generated recommendation (Art. 22 GDPR) by writing to our DPO: dpo@tributai.es.

Your queries are processed in the European Union (the eu multi-region and, as a fallback, europe-west1, Belgium) with Anthropic’s Claude model through Google Cloud Vertex AI. Anthropic does not train its models on your data. More information in the Privacy Policy.

24/7

Always available

14 days

Trial to get started

Capabilities

Everything a tax advisor does, but faster

Automate your tax obligations and focus on what matters.

Tax questions whenever you need them

Ask anything about VAT, income tax, deductions, tax forms... at any hour of the day.

Tax returns without blockages

Forms 303, 130, 111, 115, 390 and more. The AI calculates them from your invoices and leaves them ready to file; you sign.

Smart tax optimisation

It spots deductions you are missing and maximises your tax savings with personalised recommendations.

Always up to date

Spanish tax law kept current. Rates, bonuses, regulatory changes... all automated.

Want to see how they work inside? Read the guides to Form 303 (VAT) and Form 130 (income tax).

AI tax advisor vs a traditional accountancy firm

The comparison you need to decide

TributAI

Traditional

Availability

24/7, 365 days

Mon-Fri, 9-18h

Response

Seconds

Hours or days

Price

From €49/month

€80-200/month

Questions

At any hour, no appointment

By appointment

Tax returns

Calculated + AI review

Manual

Legal updates

Real time

Variable

Frequently asked questions

Your business in focus. You review, you decide.

Try it for 14 days and find out why more and more self-employed people choose tax AI.

Start your trial

14-day trial · cancel before it ends and you are not charged · No commitment on the monthly plan