Running a trade business in Italy: DURC, the credit licence and installer rules

Italy controls its construction industry through certificates: who is qualified to install, whose contributions are paid, and, since late 2024, who has enough safety credits to be on site at all. The 2026 essentials:

Registration and installer qualification

Businesses register with the Camera di Commercio. Installation trades, electrical, plumbing, heating, gas, lifts, fall under DM 37/2008: the business must have a qualified technical manager (responsabile tecnico) meeting experience or qualification requirements, and every installation ends with a dichiarazione di conformità, the conformity declaration the customer needs for connections, sales and insurance. General building work has no licence for private jobs, but public contracts above 150,000 euro require SOA attestation in the relevant categories.

The DURC: the document that moves money

The Documento Unico di Regolarità Contributiva certifies your INPS, INAIL and, for construction, Cassa Edile positions are in order, and is valid 120 days. It is mandatory for public work and bonus-related jobs and demanded by most GCs on private chains, because an invalid subcontractor DURC creates joint liability up the chain. Enrol construction workers with the local Cassa Edile, keep contributions current, and treat DURC renewal like an invoice cycle.

The patente a crediti

Since October 2024, companies and self-employed workers operating on construction sites need the credit-based licence, starting at 30 credits, with credits deducted for serious safety violations and work suspended when the balance is too low. Training and clean inspections protect the balance. Check your position before tendering, because GCs now verify it alongside the DURC.

VAT and the bonus economy

Standard VAT is 22%, with 10% on qualifying renovation work, and the reverse charge applies to much construction subcontracting. Renovation tax deductions still drive a large share of demand, with percentages and transfer rules changing almost yearly, so confirm the current bonus regime each season and paper your jobs accordingly, since bonus paperwork failures land on the contractor as well as the client.

FAQs for Italy trade businesses

What is the patente a crediti?

Since October 2024, businesses and self-employed workers operating on construction sites need a credit-based licence starting at 30 credits; serious safety violations deduct credits and can suspend your ability to work. Check your credit position and training records before tendering.

Why does everyone keep asking for my DURC?

The DURC certifies your social security and welfare contributions are in order and is valid 120 days. GCs must verify it before letting subs start, because an invalid DURC makes them jointly liable for your contribution debts. Keep it current or watch contracts stall.

Do I need SOA certification for private work?

No, SOA attestation is for public contracts above 150,000 euro. For private work the key papers are Camera di Commercio registration, DM 37/2008 qualification for installation trades, the conformity declaration after each install, and the DURC.

This guide is general information, not legal advice. Licensing thresholds, payment statutes, insurance and tax rules change; always confirm current requirements with the regulator, a lawyer or your accountant before relying on them.