---
title: "mon-entreprise.urssaf.fr"
description: "The official assistant for entrepreneurs in France. Over 20 socio-fiscal simulators, one million users per month."
date: 2024-01-01
category: "dev"
technologies: ["TypeScript", "React.js", "Publicodes", "Node.js"]
url: "https://mon-entreprise.urssaf.fr/"
github: "https://github.com/betagouv/mon-entreprise"
featured: false
lang: "en"
---

Social contribution, tax and startup aid simulators. Open source project led by Urssaf and beta.gouv.fr, used by over one million people every month.

The calculation engine relies on [Publicodes](https://publi.codes/), a declarative language for modeling French socio-fiscal rules.