---
title: "Kalceo"
description: "BTP quote tool for construction artisans and small businesses. 2026 e-invoicing compliant template, legal notices, and practical guide."
created: 2026-05-04T14:00:00+02:00
updated: 2026-05-13T16:20:00+02:00
tags: ["Construction", "Artisans", "Quotes", "Cloudflare", "Tailwind CSS"]
url: "https://kalceo.fr"
icon: "/images/icons/icon-abacus.svg"
image: "/images/projects/kalceo-card.webp"
---

## Context

France's e-invoicing reform rolls out progressively from 2026: artisans and small businesses in the construction sector (BTP) must update their quotes and invoices to meet new legal requirements. Mandatory fields, accepted formats, transmission deadlines — many small firms are caught off guard.

Kalceo was built to address this directly: a simple, up-to-date tool for construction artisans who need to stay compliant without wading through pages of regulation.

## What Kalceo does

- **2026-compliant BTP quote template** — a ready-to-use template with all mandatory legal fields for construction businesses
- **E-invoicing guide** — a clear breakdown of the new obligations, deadlines, and accepted formats
- **Mandatory legal notices** — an up-to-date checklist of the fields required on every quote and invoice for small construction firms

## Tech stack

Kalceo is a static site built for simplicity and fast delivery:

- **Static HTML** — no server-side framework, instant rendering, zero runtime dependencies
- **Tailwind CSS** — utility-first layout, minimal build output
- **Cloudflare Pages** — global edge hosting, native HTTPS, continuous deployment from Git

The static approach is deliberate: the content is documentary, not interactive. A static site is faster, less fragile, and requires no infrastructure to operate.

## In production

Kalceo is live at [kalceo.fr](https://kalceo.fr). Content is updated as regulatory requirements evolve.