Consult the certified invoicing programme

• At any moment.

• Online.

• Consultation of certified invoicing programmes.

• It is free of charge.

• At the moment.

This service allows you to consult the list with all the invoicing programmes certified by the Autoridade Tributária e Aduaneira (AT) to date.

Any taxable person, whether an IRS or IRC taxpayer, can thus prove that the invoicing programme, or that they issue only transport or delivery notes, which serve as transport documents, that they are using, or intend to acquire in order to process their invoicing or issuing transport documents, is duly certified by AT. The recipient of the invoice or document rectifying the invoice, even if he or she is a final consumer, will also be able to confirm that the certified document has correspondence in the list of certified programmes.

This list is regularly updated, taking into account new requests for certification that are being approved by AT and also any revokes of software that has already been approved.