Electronic Invoicing DIAN – Colombia

Implementing electronic invoicing for DIAN in Colombia is a technically demanding process. Generating an invoice requires building a complex XML, applying a digital signature with a certificate, and sending it to DIAN services while complying with strict validation rules.

Among these steps, one of the most challenging is XML generation: it is large, rigid, and filled with business rules that make manual construction error-prone and hard to maintain.

This package, built in PHP, was created to simplify that process. Instead of dealing directly with complex XML structures, the developer defines the invoice using a clean and easy-to-understand array. From that input, the package takes care of generating the full XML, signing it properly, and sending it to DIAN.

The goal is to abstract away the technical complexity behind a simpler interface, allowing developers to focus on business data rather than implementation details of the standard.

This project was created to make electronic invoicing in Colombia more accessible, reducing errors and speeding up integration in real-world systems.