MyGuichet.lu vs Peppol: Which E-Invoicing Channel Should You Choose in Luxembourg?

Two Channels, One Obligation

Since March 2023, Luxembourg requires all suppliers to the public sector to submit their invoices electronically. The government has authorised exactly two channels for this purpose: MyGuichet.lu and the Peppol network.

Both channels produce invoices that comply with the European standard EN 16931, and both are fully accepted by the country's public entities. However, they differ significantly in their approach, capabilities, and suitability for different types of businesses.

This article provides a detailed comparison to help you make an informed choice.

MyGuichet.lu: The Government Portal

MyGuichet.lu is the national e-government platform, operated by Guichet.lu under the Ministry of Digitalisation. It provides citizens and businesses with access to a wide range of administrative services, including electronic invoicing.

How It Works

Through MyGuichet.lu, businesses can manually create electronic invoices using a web-based form or upload pre-formatted invoice files. The platform validates the invoice against the EN 16931 standard and transmits it to the relevant public sector recipient.

Advantages

• Free to use — no subscription or per-invoice fees
• Government-operated — backed by the state
• LuxTrust integration — secure authentication using the national digital identity system
• No additional software needed — everything is done through the web browser

Limitations

• Manual process — each invoice must be created or uploaded individually
• B2G only — cannot be used for B2B invoicing
• No automation — no API or integration with accounting software
• Time-consuming for high volumes — not practical for businesses sending many invoices
• Domestic only — no cross-border invoicing capability

Peppol: The European Network

The Peppol network is an international e-invoicing infrastructure used by over 300,000 organisations in more than 30 countries. It connects businesses through certified access points — service providers that handle the technical transmission of electronic documents.

How It Works

Businesses connect to the Peppol network through an access point provider like Peppol Box. Once connected, they can send and receive e-invoices to any other Peppol participant, whether locally or abroad. Invoices are transmitted in structured format and can be automatically integrated into accounting systems.

Advantages

• Full automation — invoices can be generated and transmitted automatically from your accounting software
• B2G and B2B — works for both government and private sector invoicing
• Cross-border — send invoices to partners across Europe
• Scalable — handles any volume, from a few invoices per month to thousands per day
• Integration-ready — connects with your accounting workflow via the Peppol Box portal, CSV/XML/PDF export, or API. Your accountant can also use Flexina Sync to automatically retrieve your invoices for free
• Delivery confirmation — receive proof that your invoice was delivered successfully

Considerations

• Subscription cost — access point providers typically charge a monthly fee or per-invoice fee
• Provider selection — you need to choose a reliable, certified access point

Side-by-Side Comparison

Here is a summary of the key differences:

• Cost: MyGuichet.lu is free; Peppol has a subscription fee
• Automation: MyGuichet.lu is manual; Peppol is fully automated
• B2G invoicing: Both support it
• B2B invoicing: Only Peppol supports it
• Cross-border: Only Peppol supports it
• Volume handling: MyGuichet.lu is suited for low volumes; Peppol handles any volume
• Software integration: MyGuichet.lu has none; Peppol integrates with your existing management tools
• Future-proof: MyGuichet.lu is limited to current B2G scope; Peppol covers all future requirements

Which Should You Choose?

MyGuichet.lu is suitable if:

• You send only a few invoices per year to the government
• You do not need B2B e-invoicing capability
• You prefer a free, no-commitment solution
• You have no cross-border invoicing needs

Peppol is the better choice if:

• You regularly invoice the public sector and want to save time
• You want to automate your invoicing process
• You trade with Belgian companies affected by the 2026 mandate
• You need a single solution for both B2G and B2B invoicing
• You want to future-proof your business for upcoming regulations

For most businesses, especially those with any volume of invoicing or cross-border activity, Peppol is the recommended choice. While MyGuichet.lu remains useful for certain administrative tasks, Peppol Box offers a more comprehensive e-invoicing solution that adapts to your needs as they grow. The small investment in an access point subscription pays for itself quickly through time savings and process efficiency.

Can You Use Both?

Yes, there is nothing preventing you from using both channels. Some businesses start with MyGuichet.lu for their initial B2G invoices and later transition to Peppol as their needs grow. However, maintaining two separate invoicing processes can be inefficient, so most businesses eventually consolidate on Peppol.