Your online invoicing software ready
for mandatory electronic invoicing

Starting from 20€ / month
  • Customer, prospect and supplier management.
  • Management of estimates, invoices, pro-forma and credit notes.
  • Management of unpaid invoices and reminder letters.
  • Catalog of items.
  • Document template editor.
  • Import and export of customers and items in Excel.
  • Sales statistics, customers, items, turnover analysis...
  • Export of customizable sales journals.
  • Access for a concurrent user. (Basic license: 1 user)
  • PC, Mac, tablet and smartphone version.
Services included
  • Support by email and phone.
  • Help with getting started : software configuration, import of customer and item data, advice layout of estimates and invoices, personalized training.
  • Hosting, data backups, secure access via HTTPS.
  • Export business documents in PDF and save in real time on Dropbox.
  • Regular updates to improve the software based on feedback received from our users.

Additional modules

Online payments
Receive your invoice payments online with Paypal, Stripe and Mollie.
included in the license
Dropbox Backups
Automatically copy your documents to your Dropbox.
included in the license
Orders / Deliveries
Purchase orders, delivery notes.
+ 5 EUR/month
Multi-User Module
Add new users to work on the same account simultaneously.
+ 5 EUR/month
Purchase invoices
Scan and encode your purchases to easily send them to your accountant.
+ 10 EUR/month
Supplier orders
Orders and receipt of supplier orders.
+ 5 EUR/month
See for yourself the ease of online invoicing
and the quality of our customer service
Try Flexina Invoicing for free for 15 days without obligation

You can also contact us to get a free demonstration with a Flexina Invoicing advisor.

Flexina Invoicing makes your online invoicing easy on iPhone, iPad and Android.

Invoicing software on iPad Invoicing software for Android
Invoicing software on iPhone, iPad, Android.

Customer testimonials

For more than 10 years, we have been providing quality professional service in dozens of countries.
Faithful to FLEXINA since always, 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 latitude in settings and customizations. You can also count on an extremely efficient and responsive technical service, which makes each handling very smooth. A must have for all freelancers and companies who want an all-in-one tool without any hassle. Thanks to the whole team!
Lionel Delsart - Belgium
Led Tech Pro SARL.
I have been using Flexina for 13 years, it is an excellent invoicing software which is complete (quote, order form, delivery note, invoice, etc.). It is easy to use, with its application and the Cloud, it allows access to documents from anywhere and with any device. Regular updates whose payment with QR code is very practical. I highly recommend this invoicing solution.
Ugo Genestout – Switzerland
I take this digital pen to say that I find that Flexina is a company that fights hard to satisfy us, what's more, with an excellent team behind, available, at the listen, and above all reactive! Nothing to complain about, I use Flexina every day, even on weekends, and it works great! 100% recommended.
Guillaume LEDUC – France
Since 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 - Luxembourg
I was looking for a program online, I found flexina which solved all my problems, simple and fast and the support always available, I highly recommend it in Switzerland.
Sergio Scalirò – Switzerland
We have been using Flexina to make our invoices and quotes for several years now, it is a really complete and easy-to-use invoicing software. We are very satisfied with the service and the human contact with the members of the Flexina team, who are always available to advise us.
Guillaume LEDUC – France
I've been using Flexina since 2016, the software is super simple and very practical. Good luck to the whole team.
Jonathan Flasschoen – Luxembourg
Casa&Co SA
We have been using Flexina for years. Very easy to use and very easy to handle. We recommend it.
CENGIZ GURSOY – Switzerland
Flexina, top-of-the-line software suitable for SMEs on computers and smartphones. simple software meets business needs
Katia Goursaud – France
The online invoicing software Flexina Invoicing is ready for the electronic invoicing
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