README

A PHP library for generating invoices according to the UBL/PEPPOL standard. This package allows you to generate UBL 2.1 documents that comply with the PEPPOL BIS Billing 3.0 standard for e-invoicing, with full support for Belgian implementation (EN 16931) and multi-country validation.

UBL PEPPOL Generator for PHP

An easy-to-use PHP package for generating UBL XML documents that comply with the PEPPOL BIS Billing 3.0 standard, specifically tailored for the Belgian implementation (EN 16931).

Objective

This package enables developers to easily generate UBL documents that comply with PEPPOL standards, without requiring in-depth knowledge of the UBL specification. The package supports multiple PEPPOL validation standards including Belgium, Netherlands, and Italy.

Documentation

📖 Complete Documentation - Detailed guides, API reference, and implementation examples

Official PEPPOL Documentation: https://docs.peppol.eu/poacc/billing/3.0/

Validation Testing

Netherlands

https://test.peppolautoriteit.nl/validate

Belgium

https://ecosio.com/en/peppol-and-xml-document-validator/ Ruleset: OpenPeppol UBL Invoice (2024.11) (aka BIS Billing 3.0.18)

Italy (General PEPPOL)

https://peppol-docs.agid.gov.it/docs/validator/

Installation

You can install this package via Composer:

composer require darvis/ubl-peppol

Laravel Installation

If you're using Laravel, the service provider will be automatically registered via package discovery. You can then use the UblNLBis3Service through dependency injection or via the facade:

use Darvis\UblPeppol\UblNLBis3Service;

class InvoiceController extends Controller
{
    public function generate(UblNLBis3Service $UblNLBis3Service)
    {
        // Use the UblNLBis3Service...
    }
}

Or via the app container:

$UblNLBis3Service = app('ubl-peppol');

Usage

Quick Start

For a quick start, see the complete examples in the examples/ directory:

• examples/be/generate_invoice_be.php - Complete Belgian UBL invoice example
• examples/nl/generate_invoice_nl.php - Complete Dutch UBL invoice example
• examples/test_data.php - Sample invoice data structure
• examples/index.php - Basic usage demonstration

Basic Example

use Darvis\UblPeppol\UblBeBis3Service;

// Create a new UBL Service instance for Belgian invoices
$ublService = new UblBeBis3Service();

// Load test data (see examples/test_data.php for structure)
$invoiceData = require 'examples/test_data.php';

// Generate the UBL XML document
$ublXml = $ublService->generateInvoice($invoiceData);

// Save the generated invoice
file_put_contents('invoice.xml', $ublXml);

Country-Specific Services

• UblBeBis3Service - For Belgian UBL invoices (EN 16931 compliant)
• UblNlBis3Service - For Dutch UBL invoices

Complete Examples

For detailed implementation examples with full invoice data structures, validation, and country-specific requirements, check the examples/ directory. Each example includes:

• Complete invoice data setup
• Supplier and customer information
• Invoice lines with tax calculations
• Payment terms and delivery information
• Country-specific validation requirements

📚 View Full Documentation for comprehensive guides on:

• API Reference
• Belgian Implementation
• Dutch Implementation
• Validation & Compliance
• Troubleshooting

Features

• Generate UBL 2.1 invoices according to the PEPPOL standard
• Belgian Implementation (EN 16931): Full compliance with Belgian UBL Schematron rules
• Multi-Country Validation: Tested against Belgian, Dutch, and Italian PEPPOL validators
• Correct BTCC Values: Proper Belgian tax category names ("Taux standard", "Taux zéro")
• Support for different VAT rates and tax categories
• Automatic calculation of totals and VAT amounts
• Input data validation with country-specific requirements
• XSD and Schematron validation compliance

Validation Testing

The package has been validated against multiple PEPPOL validators:

• Netherlands: https://test.peppolautoriteit.nl/validate
• Belgium: https://ecosio.com/en/peppol-and-xml-document-validator/
• Italy (General PEPPOL): https://peppol-docs.agid.gov.it/docs/validator/

Recent Updates (v1.2.0)

• Fixed Belgian UBL Schematron validation errors (ubl-BE-01, ubl-BE-10, ubl-BE-14)
• Added proper BTCC values for Belgian tax categories
• Enhanced XSD validation compliance
• Fixed PEPPOL Italy validator warnings
• Added automatic schemeID handling for Dutch KVK numbers
• Improved Italian Codice Fiscale format validation

Requirements

• PHP 8.2 or higher
• DOM extension

Author

Arvid de Jong
Email: info@arvid.nl
Website: arvid.nl

Contributing

Contributions are welcome! Feel free to create issues or submit pull requests.

License

This package is open-source software licensed under the MIT License.