As of 1 July 2022, taxpayers were supposed to start issuing invoices using qualified electronic signatures or seals (QES) or EDI with security measures stated in the European Model EDI Agreement to comply with Decree No. 28/2019.   However, on 26 May 2022, the Portuguese authorities published a new Dispatch 49/2022-XXIII, postponing the obligation to use qualified electronic signatures or seals on PDF invoices. According to this new publication, PDF invoices will be considered e-invoices for all purposes provided for in tax legislation until 31 December 2022.   With the new timeline, all non-EDI invoices in B2B and B2C transactions...