Ivelix — White Label Invoicing
Build your own invoicing tool on the Ivelix API
Don't reinvent invoicing: plug your product into a complete engine (VAT, legal notices, numbering, online payment) and keep your own brand on every document.
A complete invoicing engine behind your own brand
What is white label invoicing with Ivelix?
Ivelix doesn't impose its own interface: through the public API, you drive the creation of Organizations, Clients, Quotations and Invoices from your own product. Every generated document carries the name, logo and contact details of the organization you configured — never the Ivelix brand.
In practice, you build the user experience (or rely on the viewing pages already provided), and Ivelix stays invisible as the technical engine behind your tool.
What Ivelix handles for you
- Automatic VAT calculation on every quotation or invoice line
- Mandatory legal notices generated with no effort on your part
- Gapless sequential numbering, compliant with French invoicing law
- Online payment via Stripe, directly embeddable on your invoices
- Factur-X generation compliant with EN 16931 on Pro and Enterprise plans
You don't have to rebuild these regulatory building blocks — they're already there, accessible through the API.
How to build your tool on Ivelix
From creating your organizations to getting paid
Create your users' organizations and clients
- One organization per user Create an Ivelix Organization for each of your end users, with its own logo and contact details.
- Centralized clients Manage their clients directly through the API, with no re-entry on the Ivelix side.
- Natural isolation Each organization only ever sees its own documents.

Generate compliant documents automatically
- Zero regulatory code VAT, legal notices and numbering are all handled by Ivelix on every creation.
- Full lifecycle From quotation to invoice, through issuing and sending by email.
- Your brand Every document displays the organization's identity, never Ivelix's.

Collect and track every payment
- Online payment Enable Stripe payment directly on the generated invoices.
- Real-time notifications Receive a webhook every time an invoice is paid, overdue, or refunded.
- Centralized tracking Keep an overview of the financial status across all your users.

Who builds on Ivelix?
A few profiles using the API as a headless invoicing engine
Agencies
Build a client portal for your own customers, with invoicing already integrated behind the scenes.
Freelancers & consultants
Integrate invoicing directly into your existing site or app, without juggling multiple tools.
Vertical SaaS
Add a compliant invoicing module to your product without building or maintaining it yourself.
No-code / low-code builders
Plug your no-code automations into a full invoicing API instead of cobbling together a homemade solution.
Want to connect your tools instead of building a full product?
If your need is to connect Ivelix to your existing tools (CRM, Make, Zapier, Notion...) rather than building a complete interface, head over to our dedicated page on the invoicing API and webhooks for automation.
Build your invoicing tool today
Create your account, generate your API key and browse the interactive documentation to start your integration.
Your brand on every document • Full REST API • Available on the Enterprise plan

Frequently asked questions about white label invoicing
Everything you need to know before building on the Ivelix API
