Tax Guide for Self-Employed (TI) and Sole Traders (ENI)
Clear information on taxes, Social Security contributions, and mandatory declarations for Self-Employed Professionals (TI) and Sole Traders (ENI) in Portugal.
9 articles
Invoicing
The collection of articles explains how to work with invoices and receipts, including the creation, cancellation, and differentiation between document types, such as invoices, credit notes, and others.
14 articles
General Questions
In General Questions, you will find answers to common questions about FIZ.
9 articles
What the Social Security quarterly statement is, how FIZ helps you calculate contributions and submit the declaration in one click, helping you avoid fines.