Condominium Works Deduction with Multiple Co-owners

When a property unit belongs to several co-owners, the deduction for works on the common parts is not automatically split into equal parts: it belongs to whoever actually bore the expense, within the limit of the share paid. If a couple own the flat 50% each but the condominium instalments were paid by only one of them, the deduction follows the one who paid, not the ownership share. Understanding this principle avoids errors in the return and in the manager's certificate.

Ownership and expense may not coincide

The co-ownership share, recorded in the land registers, indicates title to the asset, but the tax deduction follows the criterion of the expense actually incurred. These are two distinct levels. A co-owner may therefore deduct more than their ownership share if they paid more, and another may deduct nothing if they contributed nothing. What matters is who made the payment and to what extent.

The condominium's point of view

For the condominium the unit is a single position in the accounts, with a share of expense calculated on the thousandths (millesimi) under Article 1123 of the Italian Civil Code. The manager does not have to split the share between the co-owners in the allocation: the expense stays unitary. The division of the deduction happens downstream, in the relationship between the co-owners and the tax authority, and it is a documentable choice of theirs.

How to divide the deduction among co-owners

In practice the co-owners can organise themselves as follows:

• Identify who pays the condominium instalments and in what proportion
• Keep proof of payment (transfers, debits on the account of the one who pays)
• Split the deductible share consistently with what each one paid
• Each reports in their return only the part of the expense they bore

If everyone contributes equally, the deduction is split equally; if one pays everything, they deduct it in full. Consistency between proof of payment and the amount deducted is what holds up in the event of an audit.

What the manager can do

The manager certifies the unit's total share of expense and the amount paid during the year. They are not required to determine how the co-owners internally divide the deduction, because that depends on who paid, information that may not appear in the condominium accounts if the payments come from a single account. It is useful, however, for the certificate to be made out to the unit and to list the known titleholders, leaving the final split to the co-owners.

Watch out for sums paid from a single account

The most delicate case is when the instalments always come from the same bank account, perhaps jointly held or belonging to a single co-owner. In this scenario the proof of payment points to one person, and the deduction should follow them, unless the co-owners can show a different internal sharing of the burden. It is better to decide and document the split before the return, rather than reconstruct it afterwards.

Clear accounts for jointly owned units too

A reliable certificate starts from accounts that keep together the unit's share, the payments received and the work they relate to. With AmministraPro the manager handles a unit record with multiple titleholders and produces the statement of the sums paid, leaving to the co-owners the choice of how to divide the deduction. The records and accounting features are on /funzioni and the plans on /prezzi. For the tax split it is always advisable to check the rules in force.