The DURC and vetting contractors in an Italian condominium

The DURC in a condominium is the Documento Unico di Regolarità Contributiva, the single certificate of contribution compliance that states whether a contractor is up to date with payments to INPS, INAIL and, for construction, the Casse edili (building funds). When the condominium awards works or services to a firm, the administrator must check its contribution compliance before making payments. It is not a formality: the correctness of payments and the client's own liability depend on this check.

What the condominium DURC is and what it is for

The DURC is an electronic document that captures a firm's contribution and insurance position on a given date. It is valid for one hundred and twenty days and is issued with a positive result only if the firm is up to date with contributions and premiums. It lets the client condominium prove it verified the supplier's compliance before paying, and lets the firm access contracts and payments.

The check is now entirely digital: the document is obtained through the social security bodies' portals by entering the firm's tax code, and the result is immediate. This means the administrator need not wait for the firm to hand over the certificate, but can independently check its position whenever necessary, with a minimal cost in time against a significant financial risk.

When the administrator must check it

The check must be made before awarding the work and, above all, before each significant payment. It applies to contracts for works and services: maintenance, cleaning, gardening, building works, systems. The DURC must be requested at the start of the relationship and renewed as needed, because a position that is compliant today may not be so a few months later. The administrator acts as client and is answerable for diligence in the check.

The check is especially important in extraordinary works resolved by the meeting, where the amounts at stake are higher and payments often occur in stages of progress. In these cases it is wise to verify the firm's compliance not only at the award, but before every instalment, so as not to find oneself having already paid substantial sums when an irregularity emerges. The same care applies when the works benefit from tax deductions, where the traceability of payments and the compliance of suppliers matter even more.

The condominium's joint liability

The sensitive point is joint liability. If it does not verify the contractor's contribution compliance, the client condominium can be called to answer jointly for breaches committed by the firm towards its own employees, within the limits set by the rules on procurement. In practice, a missed check can turn into an unexpected outlay for the condominium and into a claim against the administrator.

Joint liability covers in particular the pay and the social security and insurance contributions that the contractor should have paid to the workers employed on the job. If the firm defaults, the bodies or the workers themselves can turn to the client, who ends up paying sums that are not theirs without any direct fault, other than not having checked. This is precisely why verifying the DURC is regarded as an act of ordinary diligence by the administrator, not an optional formality.

What to do if the DURC is irregular or missing

If the document is irregular or the firm does not deliver it, the administrator can and must suspend payment until the position is clarified. Case law has recognised that the client may lawfully withhold sums in the absence of proof of contribution compliance. Failure by the contractor to deliver the DURC, when required by the contract, amounts to a breach of contract.

• Request the DURC before awarding the work.
• Check its validity before every significant payment.
• Keep a copy of the document in the supplier's file.
• Suspend payment if the DURC is irregular or missing.
• Renew the check when the one hundred and twenty days expire.

The most common mistakes

The most frequent mistake is treating the DURC as a one-off task to be filed once, without renewing it. Another is paying the firm without having verified the document, exposing the condominium to joint liability. Then there are those who keep no record of the check: in the event of a dispute, the administrator must be able to prove they controlled it, and without documentation diligence becomes hard to demonstrate.

A useful precaution is to include in the works contract a clause making payments conditional on the firm's contribution compliance and requiring the contractor to report promptly any change in its position. In this way, suspending payment in the case of a negative DURC has a clear contractual basis and does not expose the condominium to claims for breach.

Document management with software

Condominium management software helps keep deadlines under control: it records suppliers, attaches DURC documents to each firm's file, flags when a document nears expiry and links the check to the payment. AmministraPro keeps supplier records, attached documents and transactions together, so the administrator pays only after verifying compliance and retains proof of the check. You can see how it works on the features page or compare the plans in the pricing section.