Successfully navigating the E-Invoicing Reform with full compliance
The E-Invoicing Reform (EIR) profoundly transforms financial processes. Castelis supports you in securing regulatory compliance, streamlining your invoicing flows and turning this obligation into a lasting performance lever for your finance department.
Why the EIR is becoming a strategic challenge for companies
The reform profoundly changes exchanges between companies and the tax authority. It requires rethinking tools, processes and the organisation of financial teams, under tight calendar and regulatory constraints.
Regulatory complexity
Multiple obligations — formats, e-reporting, deadlines — subject to penalties, difficult to absorb without support.
Process transformation
The reform requires rethinking tools, workflows and the organisation of financial teams within constrained timelines.
Non-compliance risk
Insufficient compliance exposes the company to penalties, invoice rejections and loss of control over flows.
/ A structured approach to successful compliance
Castelis relies on a proven methodology to support finance departments at every step of the reform, ensuring coordination of stakeholders, risk control and operational continuity.
Initial audit
Analysis of your tools, invoicing processes and client reference data to identify gaps with the regulation.
Impact analysis
Assessment of organisational, technical and fiscal impacts related to EIR compliance.
Change management
Team awareness and change management to guarantee appropriation of new processes.
Implementation
Selection of adapted solutions and compliance implementation through to operational deployment.
Complete support for your EIR compliance
We support administrative and financial departments across the full EIR scope, from regulatory analysis through to operational management of electronic invoicing flows.
EIR audit
Assessment of your compliance level and identification of regulatory gaps.
Regulatory scoping
Analysis of legal obligations and definition of the compliance roadmap.
Solution selection
Support in selecting tools and platforms suited to your context.
Project management
Stakeholder coordination and progress monitoring.
Business support
Training and change management for financial teams.
Compliance monitoring
Implementation of monitoring and control mechanisms to ensure compliance over time.
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Securing your transition over the long term
Beyond immediate compliance, Castelis helps you build robust, scalable processes to anticipate future regulatory changes.
Controlled risk
Enhanced traceability
An expert partner for financial transformations
Castelis supports finance departments in their regulatory and digital transformation projects with a pragmatic, results-oriented and business-adoption approach.
Controlled non-compliance risk
Securing your compliance through perfect mastery of the regulatory framework and its evolution.
Optimised financial processes
Automation and reliability of invoicing flows to reduce manual tasks and error sources.
Flow traceability and security
Implementation of mechanisms guaranteeing complete traceability of exchanges and reliability of transmitted data.
Team upskilling
Change management and skills transfer to make your teams autonomous and operational over the long term.
/ They optimised their financial processes with Castelis
Discover how our clients automated and secured their financial flows to gain efficiency and operational control.
Prodistribution | Consolidating group accounting data
Centralised accounting interface system to automate financial flows for 150 companies under the Picard, Casino and Franprix banners.
Qualiconsult | Improving financial management across agencies
Deployment of the Chronos ERP to unify financial and operational data from 100+ agencies in real time.
Dream Yacht Charter | Automating inter-company billing
Automation and securing of inter-company flows to consolidate group accounting at D+1.
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Your questions on the E-Invoicing Reform
All VAT-liable companies will be required to receive electronic invoices, then progressively to issue them. The reform applies to all domestic exchanges and also involves e-reporting obligations.
Non-compliance can result in financial penalties, invoice rejections, payment delays and loss of visibility over financial flows. Anticipating the reform secures the entire invoicing chain.
Not necessarily. An audit determines whether your current tools are compatible or need to evolve. Castelis supports you in this analysis and in choosing the right solutions.
Right now. The reform involves significant organisational and technical impacts. Anticipating allows you to spread the workload, secure decisions and turn the regulatory obligation into a performance opportunity.
Let's talk about your project
