What it is
Some situations require, by law or out of prudence, a qualified professional: VAT-registered activities, foreign income, tax disputes, corporate transactions. In these cases we help you frame the problem and refer you, without improvising answers.
Who may need it
- Self-employed workers and businesses
- People with income or assets in more than one country
Eligibility. Requirements depend on your personal situation and on the rules in force when you apply. This page does not determine whether you qualify: the competent body verifies that.
How it works
- Tell us what you needChoose the service or describe your situation: we point you to the right procedure.
- Prepare your documentsUse the service's document checklist to come to the appointment prepared.
- Meeting and reviewWe review the paperwork together and explain each step in plain language.
- Handling the procedureThe procedure is handled in the way shown by the service's availability label.
Documents commonly requested
Referral for complex tax cases · Last reviewed: 11 October 2026
Indicative list: depending on your situation, further documents may be required. Ticks stay on this device only and are not sent anywhere.
Deadlines
We do not publish deadlines we cannot keep reliably up to date. Always check the current time limits on the official source listed on this page.
Fees
Fees are not yet published. They will be explained clearly before any work starts.
Frequently asked questions
Why can't you answer directly?
Because a wrong answer can cost you dearly. We prefer to tell you clearly when a professional is needed.
How much does the service cost?
Fees are not yet published on the website. They will be explained clearly before any work starts, with no obligation.