Electronic invoicing is no longer optional in Panama. Law 256 of 2021 and its implementing decrees established a mandatory adoption schedule that already covers the vast majority of taxpayers. What once seemed like a distant initiative is now an operational requirement: if you cannot issue a receipt with a valid CUFE, you cannot bill.
This guide consolidates the practical resources your business needs to understand the system, comply without disruption, and make the right choice between the free DGI invoicer and the authorized PACs.
In this guide
Legal framework: Law 256 and decrees
Law 256 of 2021 established Panama's Electronic Invoicing System (SFEP) as the official medium for issuing tax receipts. Mandatory adoption rolled out by sector and billing volume, and by 2026 it covers practically all formal economic activity. Non-compliance exposes the taxpayer to fines and to the loss of the ITBMS tax credit.
CUFE and DGI validation
The Single Electronic Invoice Code (CUFE) is the digital fingerprint of every document. It is generated from issuer data, recipient, date, amounts and a digital certificate, and lets the DGI verify that the invoice is genuine and unaltered. Without a valid CUFE, the invoice does not legally exist. Every invoice, credit note or debit note needs its own CUFE.
Authorized PACs and migration
The DGI accredits a set of Authorized Qualified Providers (Proveedores Autorizados Calificados) that act as the technical bridge between your system and the SFEP. Each PAC has different strengths, pricing models and SLAs. For many companies, migrating from the free DGI invoicer to a professional PAC is the first step to scaling operations without billing becoming a bottleneck.
Integration with your ERP
The most efficient way to operate electronic invoicing is from the same system that records the sale. When the ERP issues the invoice, it connects directly with the PAC, receives the CUFE in seconds, and delivers the PDF and XML to the customer with zero manual intervention. That eliminates transcription errors, keeps inventory and AR in sync, and leaves a complete audit trail.