You can notify the Tax Agency of facts or situations that may constitute tax infringements or smuggling, or that may be relevant to the application of taxes.

You can file a tax complaint in general at any Tax Agency office, either in person or by sending it by mail.

In the electronic headquarters of the Tax Agency you have a Public Tax Complaint Model .

You can also select the appropriate form for each case via the Internet:

• Invoices and tickets undeclared
• Use of sofware of concealment of sales
• E-commerce and other tax frauds online
• Lease of properties

The following link provides information on the procedure to follow in any of the cases: Tax complaint .