Features & tools
Automatic allocation of condominium expenses
Expense allocation is the most delicate accounting operation in management: it distributes each cost among the owners according to criteria that vary with the nature of the expense. A management system automates this step by applying the correct thousandths (millesimi) table to each item and producing an allocation plan that is consistent, verifiable and repeatable. It does not replace the manager's choices but removes the manual arithmetic and its errors: shares applied to the wrong table, totals that do not add up, inconsistent rounding. This guide explains how automatic allocation works, which legal criteria it rests on, which special cases it handles and why the result is easier to defend in a dispute than a calculation on a sheet.
The allocation criteria set by law
Allocation does not follow a single criterion. Article 1123 of the Italian Civil Code sets the general principle: expenses for the conservation and enjoyment of common parts are allocated in proportion to each owner's share of the property, that is to the thousandths; but where a common thing serves the owners to different degrees, the expense is allocated in proportion to use; and if an installation serves only part of the building, the expense falls only on the group that benefits from it.
Alongside this principle sit special criteria. Article 1124 governs stairs and lifts, allocated half by ownership thousandths and half in proportion to floor height. Article 1126 regulates the roof terrace in exclusive use, with one third borne by the exclusive user and two thirds by all owners for whom the terrace acts as cover. A management system knows these criteria and applies them according to the type of expense selected.
How software links expense and table
The basic mechanism is the association between each expense category and the thousandths table that governs it. When the manager records an invoice or a budget item, they classify it in a category, for example stair cleaning, lift maintenance, central heating, and the software automatically applies the corresponding table: general for common expenses, stairs or lift for those under Article 1124, heating for central systems.
This link is what makes the allocation repeatable and consistent. It is not about typing a percentage by hand for each owner but about choosing the correct item and letting the calculation engine distribute the amount over the recorded shares. The allocated total matches the amount spent, with no differences to square by hand.
- General expenses on the ownership table (Art. 1123)
- Stairs and lift half ownership, half floor height (Art. 1124)
- Central heating by consumption and a dedicated table
- Exclusive-use roof terrace one third and two thirds (Art. 1126)
Special cases the automation must handle
Not every expense follows the standard table. Some fall on single units (for example a repair on an exclusive-use part), others must be allocated to a subgroup of owners (a stairwell serving only some). Good management software lets you handle these exceptions without abandoning automation: you assign the expense to the correct group or single unit, and the rest of the plan is still calculated by the software.
The distinction between ordinary and extraordinary expenses also matters. Extraordinary works may require an allocation between owner and tenant different from the ordinary one, or the setting up of a special fund under Article 1135 of the Italian Civil Code for extraordinary maintenance of significant amount. The software must allow these items to be tracked separately.
Rounding and squaring
An often underrated detail is rounding. When an amount is distributed over dozens of units with fractional shares, the sum of the rounded shares can differ by a few cents from the total. A serious allocation engine handles this remainder deterministically, so that the sum of the shares always matches the allocated amount and the plan squares to the cent.
Squaring is not an accounting nicety: an allocation plan that does not add up is immediately open to challenge at the meeting and undermines the owners' trust. Automation removes the class of errors caused by copy-pasted formulas and disconnected spreadsheet cells.
Why automatic allocation is easier to defend
An allocation plan produced by a management system is traceable: you know which expense was allocated on which table, with which shares and which exceptions. If an owner challenges a charge, the manager can reconstruct the calculation item by item. With a spreadsheet, reconstructing a formula written months earlier is often impossible and every challenge becomes an argument without objective data.
In AmministraPro allocation is linked to the unit records and the approved thousandths tables: by recording an expense and choosing the category, the allocation plan is generated on the correct criterion and stays consistent with the accounts and the financial report. The allocation features are described on the /funzioni page, while the plans suited to the number of condominiums managed can be compared on the /prezzi page.
Frequently asked questions
Does automatic allocation replace the manager's decisions?
No. The software performs the arithmetic of allocation, but the choices remain with the manager and the meeting: which criteria to apply, how to classify an expense, whether to charge an item to a subgroup or an extraordinary fund. Automation removes calculation errors and guarantees squaring, but it does not decide in place of the condominium's bodies. It is a tool that carries out, consistently and repeatably, what the rules and resolutions establish.
How does software handle stair and lift expenses?
Stair and lift expenses follow Article 1124 of the Italian Civil Code: half is allocated by ownership thousandths and half in proportion to each unit's floor height. A management system automatically applies this mixed criterion using the dedicated table, without the manager having to compute the two components by hand and add them for each owner.
Does a management system allocate expenses to only some owners?
Yes. When an installation or common part serves only some owners, Article 1123 provides that the expense falls only on the group that benefits from it. Good software lets you define the subgroup and allocate the item only to those units, while keeping the calculation automatic for the rest of the expenses common to the whole building.
Does the automatic allocation plan always match the total spent?
A reliable allocation engine handles rounding deterministically, so the sum of the shares matches the allocated amount to the cent. This avoids the few-cent differences typical of a spreadsheet calculation, where independent rounding can make the total of the shares diverge from the actual expense, leaving the plan open to challenge at the meeting.
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