ATECO 2025 Codes API with Profitability Coefficients

Italian ATECO 2025 business classification codes with the regime forfettario profitability coefficients, deployed as a static site on GitHub Pages.

Live Demo

URL: https://FeliceC.github.io/ateco_codes

The web interface allows searching and filtering ATECO codes directly in the browser.

Static API

Endpoint	Content
GET /ateco_codes_with_profitability.json	Full dataset with metadata
GET /api/code/{code}.json	Single code, e.g. /api/code/01.1.json
GET /api/stats.json	Dataset statistics

Search and filtering run client-side: load the full dataset and use the functions in api.js.

Data

ateco_codes_with_profitability.json

• Total ATECO codes: 3257 (all levels, sections included)
• Codes with a single profitability coefficient: 2791
• Codes with ambiguous coefficient: 466 (see below)

ateco_codes_with_profitability.sql

CREATE TABLE + INSERT statements for PostgreSQL.

Both files are generated by npm run generate from the ISTAT sources in data/: do not edit them by hand.

Data Format

{
  "code": "01.1",
  "title_it": "Coltivazione di colture agricole non permanenti",
  "title_en": "Growing of non-perennial crops",
  "hierarchy": 3,
  "parent_code": "01",
  "profitability_coefficient": 0.67,
  "profitability_candidates": [0.67],
  "profitability_description": "Altre attività economiche",
  "profitability_category": "altre_attivita",
  "has_profitability_data": true
}

Profitability Coefficients

Coefficients come from Allegato 4 of L. 190/2014 (as replaced by L. 145/2018), which is still in force for ATECO 2025 until a new table is approved (d.lgs. 81/2025). The law defines them on ATECO 2007/2022 codes:

Category	ATECO 2007/2022	Coefficient
Construction & Real Estate	41-43, 68	86%
Professional/Financial Services	64-66, 69-75, 85-88	78%
Other Economic Activities	everything else	67%
Trade Intermediaries	46.1	62%
Street Trade - Other Products	47.82-47.89	54%
Food & Beverage Industry	10-11	40%
Wholesale/Retail Trade	45, 46.2-46.9, 47.1-47.7, 47.9	40%
Street Trade - Food	47.81	40%
Accommodation & Food Services	55-56	40%

Each ATECO 2025 code is mapped to ATECO 2022 through the ISTAT correspondence table. When it corresponds to 2022 codes with different coefficients (e.g. 47.12.10 covers both shop and street retail), profitability_coefficient is null and profitability_candidates lists every possible value: the right one depends on the activity actually performed.

Data Sources

data/ holds the columns needed from these ISTAT files:

• istat-structure-2025.tsv — Struttura ATECO 2025
• istat-correspondence-2025-2022.tsv — leaf rows of the Tavola di raccordo ATECO 2025-2022, aggiornamento 2026

Local Development

git clone https://github.com/FeliceC/ateco_codes.git
cd ateco_codes
npm ci

# Run tests
npm test

# Regenerate JSON and SQL from data/
npm run generate

# Build static site into ./dist
npm run build

# Serve locally
npx serve dist

Deployment

Push to main triggers GitHub Actions which:

1. Installs dependencies
2. Runs tests
3. Builds the static site
4. Deploys to GitHub Pages

License

ATECO codes are public data from ISTAT. Code is licensed under MIT.