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Flexina: The Best Online Invoicing Software with Peppol

An intuitive and powerful solution to manage your invoicing with ease.

Ideal for freelancers and SMEs, our software optimizes your daily management with a modern and ergonomic interface. Flexina is designed to meet Peppol electronic invoicing requirements.

24/7 Access from Any Device

Invoice online with complete freedom, with multilingual support.

Maximum Security

Your data is hosted in Europe with regular backups.

Dedicated Customer Support

Enjoy personalized support from our team of experts.

The All-in-One Management Software, 100% Modular

Pay only for the features you need with Flexina, the customizable management software that adapts to your business.

Create Unique Quotes and Invoices with Your Own Customizable Templates!

Complete freedom of customization for your quotes and invoices.

With Flexina, design professional business documents that reflect your company's image.

Custom Design for Your Quotes and Invoices

Customize layout, colors and add your logo.

Flexible Terms and Conditions

Easily add and modify your clauses on the back of your documents or as attachments.

Compliant Documents

Create documents compliant with Luxembourg and European standards.

Master Your Cash Flow in Real Time

Automated and intelligent cash flow management.

Instantly visualize your financial status and automate customer reminders.

Real-Time Tracking

Track invoice and payment status with clear and instant indicators.

Automatic Bank Reconciliation

Access your bank statements to automatically reconcile your sales and purchase invoices.

Online Payments

Accept online payments for your invoices via Digiteal, Stripe or PayPal without complications.

Optimize Your Customer Relations with Flexina CRM

A complete dashboard to manage your customers and suppliers.

Keep a detailed history of every interaction and strengthen your customer relationships.

Centralized Customer Management

Create complete customer records with business history and personalized tracking.

Automated VAT Data

Instantly import and verify VAT numbers via VIES.

Integrated Sales Tracking

Organize your tasks and business notes directly in each customer record.

Boost Your Revenue with Flexina Invoicing

Maximize your business performance with our complete business management software suite.

Optimize your financial tracking and make informed decisions with detailed statistics and real-time analysis.

Real-Time Financial Dashboard

Instantly visualize your revenue, with automatic updates for each invoice.

Detailed Business Analysis

Leverage detailed statistics by VAT rate, country, customer categories and products.

Strategic Business Reporting

Drive your business with clear graphs and customized performance indicators.

Flexina Invoicing: Your Complete Business Management Solution, Adapted to Your Needs!

Streamline your entire sales cycle with our powerful all-in-one solution.

Efficiently manage all your business documents and optimize your workflow.

Centralized Business Documents

Manage your entire sales cycle: quotes, orders, deliveries and invoices in an integrated flow.

Automatic Document Conversion

Transform your quotes into orders then into invoices without re-entry, with customized status tracking.

Sales Tracking and Statistics

Analyze your sales performance and customer tracking with detailed indicators.

Electronic Signature for Quotes and Purchase Orders

Secure and accelerate the electronic signature of your quotes and purchase orders with our legal and certified solution.

Our electronic signature solution enables instant validation of your quotes and purchase orders, in compliance with legislation.

Legal Electronic Signature

Legally sign your quotes and purchase orders with our secure electronic signature solution.

Real-Time Signature Tracking

Automate the electronic signature process for your business documents with instant notifications.

Simplified Quote Validation

Quickly obtain electronic signatures for your quotes and transform them into purchase orders.

Business Planning Integrated with Your Business Management

Centralize planning, tasks and invoicing in a single interface adapted to all business sectors.

Manage your business with professional planning connected to your administrative and business management.

Multi-Activity Planning

Manage interventions, projects and tasks directly linked to your customer files.

Integrated Management

Connect your planning to quotes, orders and invoices automatically.

Collaborative Planning

Coordinate teams and track task progress in real time.

Peppol Electronic Invoicing in Luxembourg: Anticipate Legal Requirements

Adopt Peppol electronic invoicing, recommended for B2B and mandatory for B2G in Luxembourg.

Electronic invoicing via Peppol is already required for transactions with the Luxembourg public sector. Flexina supports you to simplify this transition and optimize your management.

Compliant Peppol Invoicing

Send and receive electronic invoices compliant with Peppol standards for your transactions with the State and your B2B partners.

Security and Traceability

A reliable and secure solution, recommended for all companies wishing to automate their electronic invoicing.

Easy Transition to Peppol

Flexina helps you implement Peppol electronic invoicing, facilitating your relationships with public administrations and business partners.

Flexina: Concrete Innovations for Your Daily Management

Smart modules that simplify your management: PrestaShop import, AI invoice scanning, electronic signature and much more.

Developed over 15 years with our customers, Flexina integrates your needs into features that save you time.

PrestaShop Import and Electronic Invoicing

Automatically import your PrestaShop orders and convert them to Peppol electronic invoices with one click.

AI Scanning of Purchase Invoices

Digitize your supplier invoices with our artificial intelligence module that automatically extracts data.

Integrated and Connected Modules

CRM, planning, electronic signature for quotes: all your management tools centralized in a single interface.

Flexina: The Complete Guide to Electronic Invoicing and Invoicing Software in Luxembourg

Discover everything you need to know about mandatory electronic invoicing in Luxembourg, Peppol compliance, and the risks of free invoicing software. Flexina offers a reliable and economical alternative for freelancers, small and medium businesses, without subscription and with optimized quote and invoice management.

Flexina: More Than Just Online Invoicing Software

What is Flexina and why choose it as online invoicing software in Luxembourg?
Flexina is online invoicing and quoting software designed to simplify business management for Luxembourg freelancers, small and medium-sized businesses. Unlike other solutions, Flexina doesn't require any subscription and offers a modular approach that allows you to customize your software according to your needs, without unnecessary costs.
Which invoicing software should a small business in Luxembourg choose?
The choice of invoicing software depends on your needs. Flexina is ideal for freelancers and small Luxembourg businesses thanks to its ease of use, complete quote and invoice management, as well as Peppol electronic invoicing which is mandatory for B2G and highly recommended for B2B.
Is Flexina invoicing software for Mac?
Yes, Flexina is online invoicing software accessible from any device, including a Mac, without installation. It works on all recent browsers and allows you to manage your invoicing wherever you are.
Is invoicing software mandatory in Luxembourg?
With the digitalization of invoicing in Luxembourg and the mandatory Peppol electronic invoice for B2G, it becomes essential to use compliant invoicing software. Flexina meets electronic invoicing requirements and ensures a smooth transition to new regulations.
Is Flexina electronic invoicing software for Luxembourg?
Yes, Flexina is electronic invoicing software designed to meet legal obligations in Luxembourg. It allows sending and receiving electronic invoices compliant with Peppol and UBL 3Bis standards, thus ensuring full compliance with current legislation.
Is Flexina quote and invoice software for construction in Luxembourg?
Yes, Flexina is quote and invoice software adapted to construction professionals. It allows managing deposits, adding specific VAT rates and including detailed item lines. You can also track construction site progress with our intervention management module.

Mandatory Electronic Invoicing in Luxembourg

Electronic invoice: why is electronic invoicing mandatory in Luxembourg?
Electronic invoicing via Peppol is mandatory for all transactions with public administration (B2G) and highly recommended for business-to-business exchanges (B2B). This reform aims to modernize business exchanges, automate accounting and simplify tax controls.
What are the benefits of Peppol electronic invoicing for Luxembourg companies?
Adopting Peppol allows Luxembourg companies to:
- **Exchange more easily with Benelux companies**, where electronic invoicing is already widely adopted.
- **Facilitate accounting export and automate invoice registration**.
- **Reduce payment delays and simplify transaction management**.
Does Flexina allow receiving and importing e-invoices in Peppol format?
Yes, Flexina is not limited to sending e-invoices: it also allows automatic reception and import of purchase invoices in Peppol XML format. Thanks to our AI scanning, supplier invoices are automatically integrated into your accounting, reducing manual entry and errors.

Have a specific question?

Our team of experts is here to help you make your choice and answer all your questions about Flexina.

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Customer testimonials

For over 15 years, we have been offering quality professional service in about ten countries

TWOSEVEN SRL

SECURITY, NETWORK & ELECTRICAL

"Always loyal to FLEXINA, a real pleasure and a very efficient tool on a daily basis. We had tried many different invoicing software and none of them offered such flexibility in settings and customizations. A must have for all freelancers and companies who want an all-in-one tool without any hassle."
Lionel Delsart

Led Tech Pro

LED Technology

"I have been using Flexina for 13 years, it's an excellent invoicing software that is complete (quotes, purchase orders, delivery notes, invoices...). It is easy to use, with its app and Cloud, it allows access to documents from anywhere and with any device."
Ugo Genestout

IMPRIMERIE IXTHUS

Printing

"I find that Flexina is a company that fights hard to satisfy us, with an excellent team behind it, available, attentive, and especially responsive! I use Flexina every day, even on weekends, and it works perfectly! 100% recommended."
Guillaume LEDUC

SCHALLER

Services

"Since I started using Flexina, my life has changed. Everything is easier, they update very regularly. They always answer the phone, they are really super responsive! Thank you"
Albane SCHALLER

PASTITALIA

Restaurant

"I was looking for an online program, I found flexina which solved all my problems, simple and fast and support always available, I highly recommend it in Switzerland."
Sergio Scalirò

SERRURERIE LAMARCK

Locksmith

"We have been using Flexina to create our invoices and quotes for several years now, it's a really complete and easy to use invoicing software. We are very satisfied with the service and human contact with Flexina team members."
Guillaume LEDUC

OPTIBELUX

Optics

"I have been using Flexina since 2016, the software is super simple and very practical. Best wishes to the whole team."
Jonathan Flasschoen

Casa&Co

Decoration

"We have been using Flexina for years. Very easy to use and handle. We recommend it."
CENGIZ GURSOY

ECHO-VERT PYRENEES OCEAN

Environment

"Flexina, top software adapted to SMEs on computer as well as smartphone. Simple software meets business needs"
Katia Goursaud