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Invoicing

For TI / ENI

Social Security

VAT

Tax Shield

Plans

Companies

For Accountants

Help

Get to know your Tax Consultant with AI

Ask anything you want — we respond immediately, identify deductions, and help you act quickly, with guidance validated by experts and covered by our Fiscal Shield.

Can I deduct my apartment rent if I work as a freelancer from home? How can I do it?

IM

It can be possible to use part of your rent, but it depends on your regime:

  • Simplified Regime: you generally don’t deduct rent directly — it can help justify expenses (via e-fatura).

  • Organized Accounting: you can deduct the business-use part, typically up to 25% for mixed-use home expenses.Tell me your regime and I’ll outline the safest steps.

Guaranteed answers to your tax questions

Made for Portugal

Trained in Portuguese tax rules and continuously refined by our team of specialists.

Tax Guarantee included

It applies to the statements submitted by the FIZ.

Immediate responses, 24/7

Improves every day with the real users' questions and the guidance of our team.

Smart tax tips. Flawless checks.

Smart tax tips.
Flawless checks.

Short tax tips, with clear and practical explanations.

Each statement is checked before submission — for error-free delivery.

Clear view of your numbers — with references for your activity.

Do you have a question?

What is the AI Tax Consultant from FIZ and how can it help me?

The AI Tax Consultant from FIZ is your always-available tax support — for any taxpayer.

  • Answers tax questions immediately, 24/7

  • Based on Portuguese tax legislation, including regulations and official guidelines

  • Explains what applies to your case, in a simple way

  • Covered by our Tax Guarantee

What is the AI Tax Consultant from FIZ and how can it help me?

The AI Tax Consultant from FIZ is your always-available tax support — for any taxpayer.

  • Answers tax questions immediately, 24/7

  • Based on Portuguese tax legislation, including regulations and official guidelines

  • Explains what applies to your case, in a simple way

  • Covered by our Tax Guarantee

What is the AI Tax Consultant from FIZ and how can it help me?

The AI Tax Consultant from FIZ is your always-available tax support — for any taxpayer.

  • Answers tax questions immediately, 24/7

  • Based on Portuguese tax legislation, including regulations and official guidelines

  • Explains what applies to your case, in a simple way

  • Covered by our Tax Guarantee

How does the FIZ protect my information when I use the AI Tax Consultant?

We take privacy and security very seriously.

  • Strict data protection and confidentiality rules

  • We use your information only to provide the service. For more details, please see our Privacy Policy.

How does the FIZ protect my information when I use the AI Tax Consultant?

We take privacy and security very seriously.

  • Strict data protection and confidentiality rules

  • We use your information only to provide the service. For more details, please see our Privacy Policy.

How does the FIZ protect my information when I use the AI Tax Consultant?