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Cross-Border Accounting in the Lille European Metropolis (MEL)

Based in Marcq-en-Barœul, at the heart of the Lille European Metropolis, Alliés Conseils supports both local and international businesses in their cross-border operations.

Specialising in accounting and taxation for foreign companies operating in France, our cross-border accounting firm helps business leaders manage their administrative, social, and financial obligations. We work with French-Belgian, Luxembourgish, and international companies, providing tailored support designed to meet the specific needs of the market.

An Accounting Firm at the Heart of the Lille European Metropolis

Located in a region open to Europe, Alliés Conseils leverages the strategic position of the Lille European Metropolis (MEL), conveniently situated between Paris, Brussels, and London.

Our cross-border accounting firm in Lille supports businesses established in key economic areas such as Roubaix, Tourcoing, Villeneuve d’Ascq, and Wasquehal.

With deep expertise in both French and European regulations, we help foreign companies set up, structure, and grow sustainably in the French market.

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Recognised Cross-Border Expertise

Our accountants provide comprehensive support for companies operating across multiple countries.
We have in-depth knowledge of tax treaties, social obligations, and the specific requirements of each jurisdiction. Our services include:

  • Bookkeeping and accounting for foreign companies in France
  • Cross-border taxation management and compliance optimisation
  • Assistance with the creation of subsidiaries or permanent establishments
  • HR support for expatriate or seconded employees
  • Financial reporting compliant with both local standards and the home country

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Supporting Belgian Companies in France

Setting up a Belgian company in France comes with new tax and social obligations. At Alliés Conseils, we secure every step of the process: managing Franco-Belgian taxation, ensuring compliance with filings, and preparing financial statements according to French standards.
Our team ensures alignment between your Belgian practices and the French regulatory framework, providing smooth, transparent management while minimising the risk of double taxation.

Local Support at the Heart of the Lille Metropolis

Our offices in Marcq-en-Barœul, just a few kilometers from the Belgian border, allow us to maintain close relationships with our Belgian clients across the Lille European Metropolis (MEL) and the northern coast.

We prioritise direct communication, responsiveness, and clarity in all our interactions.

This geographical and cultural proximity makes it easy to coordinate between your Belgian teams and our firm, while ensuring fast, local support every step of the way.

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Alliés Conseils : Cross-Border Expertise for Belgian Businesses in France

Alliés Conseils is a leading accounting firm for Belgian companies operating in France. Our dual expertise – French and Belgian – makes us a unique partner for business leaders looking to establish, structure, and grow sustainably in France.

With our human-centered approach, digital tools, and in-depth knowledge of cross-border regulations, we turn your expansion into France into a well-managed opportunity that creates real value.

Nos accompagnements

Alliés Conseils propose une offre complète, pensée pour répondre aux enjeux quotidiens et stratégiques des entreprises. Nos accompagnements couvrent :

Tous nos accompagnements

Accounting Expertise and Business Consulting

From day-to-day accounting to analysing your results, we help you manage your business and anticipate your strategic decisions.

Auditing

Our statutory and contractual audit services enhance financial transparency and guarantee the reliability of your financial statements.

Accounting and HR Expertise Dedicated to Foreign Companies in France

As specialists in cross-border operations, we help foreign companies establish themselves in France by providing accounting, tax and social security management services for their business activities.

 

 

Legal and accounting business start-up

Choosing the legal status, drawing up the business plan, legal formalities: we support entrepreneurs and business buyers at every key stage of their project.

Outsourced payroll service

From preparing payslips to monitoring social security obligations, we secure the management of your teams with reliable and tailored solutions.

Transition to E-Invoicing

Selection and deployment of compliant tools, configuration and change management. We support your company through a simple, secure and sustainable transition.

Organizational Audits

We analyse your internal processes and cash flow to identify areas for improvement. Using clear dashboards and tailored indicators, we help you to accurately control your margins, cash flow and costs.
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