How do I integrate with Luxembourg accounting software?

Apideck's Unified Accounting API lets you integrate with 9+ Luxembourg accounting platforms through a single API. Sign up, enable the connectors you need, and use one standardized data model to read and write invoices, payments, contacts, and more.

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🇱🇺Accounting Coverage·Français

Luxembourg accounting integrations

Q: What accounting software is popular in Luxembourg?

The most popular accounting platforms in Luxembourg include Exact Online, Sage Business Cloud Accounting, Sage Intacct, Xero, QuickBooks. Luxembourg’s accounting market is almost entirely served by Belgian vendors with LU-specific compliance modules (FAIA, eCDF). Sage BOB is the clear leader among fiduciaries and SMBs, followed by WinBooks (Exact) and Horus. B2G e-invoicing via Peppol mandatory since December 2021.

Luxembourg’s accounting market is almost entirely served by Belgian vendors with LU-specific compliance modules (FAIA, eCDF). Sage BOB is the clear leader among fiduciaries and SMBs, followed by WinBooks (Exact) and Horus. B2G e-invoicing via Peppol mandatory since December 2021.

9 supported accounting platforms + 6 on the radar

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Luxembourg accounting software market

Where the major platforms sit and which Apideck supports today. Figures are company-reported unless marked as an estimate.

99.5%

Share of non-financial firms in Luxembourg classified as SMEs

STATEC / OECD, "Financing SMEs and Entrepreneurs 2024"

Platform	Luxembourg market position	Apideck	Source
Sage BOB	More than 30,000 customers across Belgium and Luxembourg since 2002	On the radar	Sage / Account-IT
Exact WinBooks	Established SME accounting package sold across the Belgium-Luxembourg market	On the radar	Advensys
Exact Online	Cloud accounting platform present across the Benelux, part of Exact's 675,000+ customer base	Supported	Exact

Subscriber and customer counts are the best available public indicators and may include accountant-managed multi-entity accounts; they are not a direct count of distinct businesses. Estimates are marked accordingly.

Luxembourg accounting compliance requirements

Luxembourg accounting compliance runs through eCDF (electronic Compulsory Data Filing), the mandatory government platform for VAT returns and annual accounts prepared under the Standard Chart of Accounts before filing with the Trade and Companies Register, alongside mandatory structured e-invoicing for public-sector transactions.

eCDF

Companies subject to the Standard Chart of Accounts must prepare and validate VAT returns and annual accounts electronically on the eCDF platform before filing with the Trade and Companies Register (RCS).

Guichet.lu / CTIE (Luxembourg State IT Centre)

XBRL annual accounts filing

Commercial companies must file their financial statements in XBRL format within seven months of the end of their financial year.

Guichet.lu

Public-sector e-invoicing mandate

Suppliers to Luxembourg public-sector entities must issue structured electronic invoices compliant with EN 16931, implementing EU Directive 2014/55/EU.

European Commission / VATupdate briefing on Luxembourg e-invoicing