Practical regulations
Compliance checks on condominium suppliers
Before awarding a contract for maintenance, cleaning or building works, an Italian property manager is required to verify the supplier's contribution compliance through the DURC, the single document certifying regularity of social security payments. This is not a minor formality: Italian law provides for joint liability of the client for unpaid contributions and tax withholdings by the contractor, and the civil code requires the property manager to exercise diligence in selecting and monitoring suppliers. This guide explains what to check, when to request the DURC, which documents to keep on file, and how to organize these checks systematically with a management platform such as AmministraPro.
What the DURC is and why it matters for condominiums
The DURC certifies that a company is regular in its contribution payments to INPS, INAIL and, in the construction sector, Cassa Edile. It is requested by the supplier itself through the social security portals and has a limited validity period, which is why it needs to be renewed periodically rather than obtained just once at the start of the relationship.
For a condominium the DURC becomes relevant whenever a contract for services or works involving labor is awarded: building works, maintenance of elevators and systems, cleaning services, gardening, or concierge services handled through an outside contractor. For ongoing contracts, such as cleaning or elevator maintenance, the check should be repeated over time, since compliance verified at the outset does not guarantee compliance in the following months.
Joint liability of the property manager and the condominium
Italian tax rules on contracted work provide that the client, and therefore also the condominium represented by its property manager, can be held jointly liable with the contractor for tax withholdings on employees' income if certain documentary verification obligations are not met before payments are made.
The property manager acts as an agent of the co-owners under articles 1129 and 1130 of the Italian civil code, which require diligence comparable to that of an agent and provide for liability for damages arising from negligent management. Choosing a supplier without any verification, or continuing a relationship with a company that has lost its contribution compliance, exposes the condominium to financial risk and the property manager to a possible challenge of poor management by the assembly of co-owners.
What to verify before and during the engagement
A structured supplier check does not stop at the DURC. Before awarding an assignment it is useful to collect and verify several elements, so that the required diligence can be demonstrated even at a later date.
- A DURC that is currently valid, requested before signing the contract and renewed while the work is carried out
- An up to date business registry extract to confirm the company exists, that its stated business purpose matches the work assigned, and that no insolvency proceedings are pending
- A single risk assessment document for interference hazards when multiple companies operate on the same condominium site
- Third party liability insurance with coverage levels appropriate to the type of work
- Technical and professional suitability of the supplier for the assigned work, as expressly required by Italian workplace safety legislation for service and works contracts
- Invoices and payment receipts, kept together with the contractual documentation for the annual report presented to the assembly
Filing and continuity of the documentation
The documentation collected is not only useful at the time of the award: it needs to remain accessible for the whole duration of the relationship and beyond, both to respond to a possible inspection by social security bodies and for the annual report the property manager presents to the assembly under article 1130 bis of the civil code.
A change of property manager should not cause this documentary record to be lost: the handover of records to the incoming manager, provided for under the same article 1129, includes ongoing supplier contracts and their related checks. For this reason it is worth organizing the supplier file digitally and centrally, so that DURC deadlines, insurance policies and contracts remain visible without having to reconstruct paper files at every change of management. In AmministraPro the supplier directory lets you attach uploaded documents and their expiry dates to each supplier, making it easier to keep track of the periodic renewals required by the regulations.
Frequently asked questions
Does the DURC need to be requested for every type of condominium supplier?
It is required for service or works contracts involving labor, such as building works, maintenance of systems, cleaning or gardening carried out through a contractor. For pure supplies of goods, without labor performed at the condominium, the check is not required in the same way, though it remains prudent to verify the general reliability of a supplier before awarding significant assignments.
What happens if a supplier loses contribution compliance during the contract?
The DURC has a limited validity period, so a company that was compliant at the start of the relationship can become non compliant later on. A diligent property manager repeats the check periodically, especially for ongoing contracts such as cleaning or elevator maintenance, and in case of non compliance evaluates the contractual consequences provided for, informing the assembly if the situation affects the continuation of the relationship.
Is the property manager personally liable if a supplier turns out to be non compliant?
The property manager is answerable to the co-owners for diligent management under articles 1129 and 1130 of the civil code: if the required checks were carried out and documented, the mandate has been fulfilled. Joint liability for unpaid tax withholdings instead concerns the condominium as the client, and it is precisely to limit this exposure that compliance with documentary verification obligations before payments takes on practical, not just formal, importance.
How long should DURC certificates and supplier documents be kept?
There is no single retention period for every document, but it is prudent to keep contractual documentation and compliance checks for the entire duration of the relationship and for the period useful for any subsequent inspection, consistent with the retention times applied to the condominium's accounting records. A digital archive organized by supplier, such as the one available in AmministraPro, prevents documents from being scattered across changes of management.
Who actually verifies the supplier's DURC?
The DURC is obtained through the online services of the social security bodies, generally on the initiative of the company itself or of a delegated professional such as a labor consultant. The property manager asks the supplier to produce it before the award and keeps a copy together with the rest of the contractual documentation, checking its validity date at every renewal of the relationship.
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