Cadastral income: what it is, how it is calculated

Ancona - Italy
Ancona – Italy

Cadastral income: what it is, how it is calculated and what it is used for

Have you ever read a cadastral survey? Among the various items that appear in the different boxes, there is a figure expressed as a euro: “reddito catastale”. That number there is much more relevant than you might think in the real estate world.

What is the cadastral income?

The cadastral income is a tax value that is used for several purposes:

  • calculate the Imu value of a property;
  • calculate the value of inheritance or gift taxes, mortgage and cadastral taxes;
  • calculate the tax heat, or the amount that affects taxes and duties.

How to check the cadastral income?

The cadastral income is determined by multiplying the consistency by the specific unit rate for the Municipality, census area and corresponding to the category and class. For real estate units belonging to the groups of categories D and E, the income is determined through direct estimation. As reported by the Revenue Agency website.

First of all, the cadastral income is calculated taking into account two factors. The first is the consistency of the property whose income you want to check. This data can be expressed both in rooms and in square meters (example: A, b, c, d). The second factor that you need to know concerns the estimates of the municipality.

But let’s see how it is calculated: Consistency of the property x appraisal rates = Cadastral income.

The consistency of a property can be expressed in walkable square meters, also considering those of the main and indirect rooms.

The estimated rates that are determined by the Revenue Agency


  • Type of property → A2
  • class surveyed area → 4
  • immovable → 3 rooms
  • Estimate → 250 x 3 rooms = 750

To recover the cadastral income in a simple and immediate way, you can bypass the calculations by connecting to the internet, for example at the site

  1. select whether the property for which you want to know the income belongs to a private individual or to a company;
  2. enter your tax code or VAT number;
  3. and the province in which the building is located.
When is the cadastral income revalued?

The cadastral income must be revalued to obtain the cadastral value. To reassess it, it must be multiplied by a coefficient, which varies only according to the category of the property. For example, for buildings belonging to groups A, C D the coefficient is 5%, for those of group B it is 40%.

The value obtained must then be multiplied by another coefficient based on the type of property. This table that you can find on the website shows all the categories and their respective coefficients.

So if we go back to the cadastral income we calculated earlier: 750 x 115 (first house) = € 86,250. But we must be careful: The value of the cadastral income does not coincide with the market value, because they are two different data.

For example,

The base rate of the IMU 2021 is equal to 8.6 per thousand, this can be revalued up to a maximum of 10.6 per thousand.

At any time it is possible to check these values ​​through a free cadastral survey carried out on the website or that of the Revenue Agency. It is also possible to go to the offices of the local agency or ask a technician for it.

How to calculate the assumed cadastral income?

The cadastral income can only be known if the properties or land are registered in the land registry. But if this condition does not occur, it is still possible to calculate a presumed cadastral income.

Obviously it is calculated provisionally pending the definitive one. The calculation of this type, however, is best entrusted to a technician. The steps are as follows:

Properties belonging to categories A, B, C

  • The category is identified on the basis of the technical elements acquired through an external inspection;
  • The class is the middle or higher in the case of even classes present in the census area;
  • The surface is deduced from the aerial-photographic surveys;
  • The consistency in compartments is obtained with the surface / average compartment surface ratio.
  • The costs of the deed of sale also depend on the cadastral income, with the exception of the notary’s fee. In fact, the “price In fact, the” price “of the deed of sale depends precisely on the income.

When buying from a private individual:

  • VAT exempt
  • registration tax 2% on the cadastral value
  • fixed mortgage tax of 50 euros
  • fixed cadastral tax of 50 euros

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