Quittio

E-invoicing for PHP and Laravel. Quittio creates, validates, reads and renders electronic invoices based on the European standard EN 16931 – ZUGFeRD/Factur-X, XRechnung, UBL and Peppol BIS from one data model. The core runs in any PHP application; the Laravel integration adds facade, configuration and commands.

Get started Formats and profiles

Germany is the first market; everything country-specific (VAT rates, legal texts, XRechnung) lives in country packs, so the core stays country-neutral.

Status: released, before version 1.0.0. APIs may still change until version 1.0.0. The legal wording of the country pack Germany was reviewed by a tax adviser in October 2026; Quittio is no tax or legal advice (see the legal review and the disclaimer in the README).

Packages#

Package	Purpose
`quittio/core`	Country-neutral core: EN 16931 data model, calculation, profiles, CII and UBL writers/readers, ZUGFeRD/Factur-X PDF/A-3, validation. Usable without Laravel.
`quittio/laravel`	Laravel integration: facade, configuration, Blade templates, commands, testing helpers.
`quittio/country-de`	Country pack for Germany: UStG mandatory fields, tax presets, XRechnung profiles and BR-DE rules, DIN 5008 letter layouts.
`quittio/country-at`, `quittio/country-be`, `quittio/country-ch`, `quittio/country-fr`	Country packs for Austria, Belgium, Switzerland and France, not reviewed by a tax adviser yet: see Austria, Belgium, Switzerland and France.
`quittio/quittio`	Everything in one package: core, Laravel integration and the country pack Germany.
`quittio/managed`	Managed layer (commercial licence, not released yet): issuer profiles, drafts, gapless numbering, archive with hashes, cancellations and corrections, mail delivery, audit log, retention.

Requirements#

PHP 8.3 or newer with ctype, dom, gd, libxml, mbstring, xmlwriter, zlib; intl recommended, zip for quittio:schemas:download
Laravel 13 (only for quittio/laravel)
Optional: Java 11+ for the KoSIT validator, veraPDF or Docker for PDF/A checks, opis/json-schema for JSON input validation

Supported formats#

Format	Content
`zugferd` / `factur-x`	PDF/A-3 with embedded CII XML (profiles MINIMUM to EXTENDED, XRECHNUNG)
`xrechnung-cii`, `xrechnung-ubl`	XRechnung 3.0 as plain XML
`cii`, `ubl`	Plain CII or UBL 2.1 XML in any profile
`peppol`	UBL according to Peppol BIS Billing 3.0
`pdf`, `html`, `json`	PDF without XML, HTML preview, normalised data model

Quick example#

php

use Quittio\Core\Builder\Party;
use Quittio\Core\Enums\UnitCode;
use Quittio\Laravel\Facades\Quittio;

$result = Quittio::invoice()                                     // seller and bank account from config/quittio.php
    ->number('RE-2026-0042')
    ->deliveryDate('2026-09-30')
    ->buyer(Party::make('Kunde AG')                               // or a model: ->buyer($customer)
        ->vatId('DE987654321')
        ->address('Bahnhofstraße 5', '54321', 'Beispielstadt', 'DE'))
    ->line('Web development', netPrice: '95.00', quantity: 24, unit: UnitCode::Hour)
    ->line('Hosting', netPrice: '49.00')                          // quantity 1, VAT 19 % by default
    ->dueInDays(14)
    ->render();                                                   // ZUGFeRD: PDF/A-3 with embedded XML

$result->pdf();
$result->save('invoices', '2026/');
$result->cancel('ST-2026-0001', reason: 'Charged twice');        // the cancellation, rendered

Documentation#

New to Quittio? Follow Getting started; new to e-invoicing? Read E-invoicing basics first.

Topic	Content
Getting started	Installation, your company in the configuration, a first invoice, rendering, cancellation, use without Laravel
E-invoicing basics	EN 16931, CII and UBL, ZUGFeRD, XRechnung, Peppol, profiles, rule codes, which format you need, German terms
Examples	Complete examples: service invoices, VAT rates, online shops, small businesses, XRechnung, customers abroad, final invoices, cancellations, orders, drafts, reminders, incoming invoices
Building invoices	Every builder method: parties, lines, VAT, payment, references, calculation, cancellations, data model
Formats and profiles	Output formats, the automatic format choice, embedded files and XMP
Validation	What is checked (levels L1 to L7), error messages, KoSIT and veraPDF
Templates and design	Logo, colours, texts, partials, own templates, view model, letter layouts, fonts
Quotes and other documents	Quotes, order confirmations, delivery notes, proforma invoices, reminders, statements
Reading incoming invoices	XML and PDF input, findings, limits
Laravel integration	Facade, rendering, storage, queue, events, mail, Blade templates, preview
Configuration	Every key of `config/quittio.php`
Artisan commands	All commands and publish tags
Testing	Fake, assertions, factories, scenarios
Country packs	The German pack: tax presets, rules, XRechnung, reminders; writing a pack
Austria, Belgium, Switzerland, France	The other country packs: presets, rules, formats, payment QR codes, default interest
Managed layer	Preview of the unreleased package: issuer profiles, customers, numbering, archive, cancellations and corrections, delivery, audit log, immutability, retention
Troubleshooting	Common errors with cause and fix
FAQ	Sending, the German e-invoicing obligation, Java, temporary files, queued invoices
Field reference	Every field of the data model with BT, cardinality and XML paths (generated)
API reference	Every public class and method with its parameters and doc comment (generated)
AI assistants	llms.txt, the MCP server of this documentation, Laravel Boost guidelines and skill

Licence#

Open core: quittio/core, quittio/laravel, the country packs quittio/country-de, -at, -be, -ch, -fr and quittio/quittio are released under the MIT licence. The Managed layer quittio/managed will be commercially licensed; it is not released yet.