Want to open a home-based business in Portugal? Know which licenses are required

To start a home business, you must first register as an independent worker via the Portal das Finanças using the correct activity code (CAE or CIRS). Non-EU citizens must ensure their residency permit allows independent activity. While purely digital work often requires no specific property license, businesses involving physical production or customer visits may require specific authorizations, such as the 'Sistema de Indústria Responsável' (SIR) and DGAV registration for food businesses. Residents who rent their home must check their lease terms for compliance.