The condominium's form 770: what it is and who must file it

The condominium's form 770 is the annual return through which the condominium, as a withholding agent, reports to the Italian Revenue Agency the withholdings it applied on payments to suppliers and professionals and the related payments made to the tax authorities. Although it is a non-profit body, when it pays for certain services the condominium takes on the duties of a withholding agent, and the summary of those duties flows precisely into form 770. Completing it correctly is the administrator's task.

The condominium as a withholding agent

A withholding agent is a party that, by law, retains part of the fee due to another and pays it to the State on that party's behalf. The condominium plays this role when it pays firms and professionals for works and services: at the time of payment it retains a withholding, pays it to the treasury and, at year end, summarises it in the return. It is the administrator, as the condominium's representative, who actually handles these obligations.

The 4% withholding on contract works

The most typical condominium withholding is the 4% one, applied to the amounts due for services relating to contracts for works and services provided by firms, companies and tradespeople in the course of business. This category includes, for example, maintenance works, stairwell cleaning entrusted to a company, and lift or garden upkeep. The condominium retains 4% on the amount of the fee, including any materials.

The 20% withholding on professionals

The case of self-employed workers and freelance professionals is different: here a 20% advance withholding applies to the fees. This covers, for example, the fee of a lawyer, an engineer or a technician engaged by the condominium. It is important to distinguish the two cases clearly, because the rate and the classification change depending on the nature of the service.

Paying the withholdings with form F24

The amounts withheld do not stay in the condominium's accounts: they must be paid to the treasury through form F24 in the condominium's name, normally by the 16th day of the month following the one in which the service was paid. Periodic payment is therefore the first obligation; form 770 comes at year end as a summary of all the withholdings applied and paid during the financial year.

The sections to fill in the 770

In form 770 the amounts withheld and paid during the year are reported in the dedicated sections, in particular section SF for the withholding data, section ST for the payments made and section SX for the summary and offsets. Consistency between the withholdings declared, the F24 payments and the certifications issued to the recipients is what the tax authorities check in the event of an audit.

Who files the 770 and when it is due

The party obliged is the condominium as a withholding agent, but the actual filing falls to the administrator, who submits the return electronically. The ordinary deadline is 31 October each year and concerns the previous year's withholdings: the 770 filed in 2026, for example, refers to the payments and withholdings of 2025.

• Identify the services subject to withholding and the correct rate, 4% or 20%.
• Pay the withholdings with form F24 by the 16th of the month following payment.
• Issue the Certificazione Unica to the recipients of the amounts.
• File the 770 electronically by 31 October.

Penalties and omissions

Failing to file the 770, or filing it late, as well as failing to pay the withholdings, exposes the condominium to administrative penalties and, in the most serious cases, non-payment can also have criminal relevance. Since it is the administrator who handles the obligation, an error in this area falls on their professional responsibility: timeliness and orderly records are therefore essential.

Managing withholdings and the 770 with software

Condominium management software calculates the withholdings when the invoice is recorded, tracks the F24 payments and prepares the data needed for the Certificazione Unica and the 770, reducing the risk of mismatches between what was withheld, paid and declared.

AmministraPro helps the administrator manage the condominium as a withholding agent, from calculating the 4% and 20% withholdings to the data for the 770 and the certifications. You can see how it works on the features page or compare the plans in the pricing section.