What is Rendita Catastale?
The rendita catastale is the cadastral income value assigned to every property registered in Italy's land registry (catasto). It's a fixed notional figure set by the state — not the market value, not the actual rental income, but an official baseline used to calculate a range of property-related taxes.
Think of it as the Italian tax system's own property valuation that it uses internally for tax purposes. Market values are irrelevant for IMU calculations — what matters is the rendita catastale.
Why It's Almost Always Lower Than Market Value
The rendita catastale is based on property category, size, and location zone within the municipality. Most values were set using surveys conducted in the 1980s and 1990s, and while they've been subject to periodic adjustments, they remain substantially below current market values in most Italian cities.
A two-bedroom apartment in central Milan with a market value of €500,000 might have a rendita catastale of €1,500–3,000 per year — a tiny fraction of actual value or actual rental potential. This gap between cadastral and market values means Italian property taxes are structurally lower than they would be if calculated on real values.
What Rendita Catastale Is Used For
IMU calculation: This is its primary use for property owners. IMU is calculated as: Rendita Catastale × 1.05 × 160 × Municipal Rate
Deemed rental income for tax purposes: If you own Italian property but don't rent it out and don't use it as your primary residence, Italian law imputes a notional income to you equal to the rendita catastale (after some adjustments). This is included in your IRPEF return even though you earned no actual rent. For non-residents this applies to second homes they own in Italy.
Cedolare secca context: When you rent property and elect cedolare secca, the actual rent received is taxed, not the rendita catastale — but understanding your rendita helps in comparing the cedolare secca flat tax against ordinary IRPEF on deemed income.
Mortgage and purchase-related taxes: Registration taxes, mortgage taxes, and cadastral taxes on property transactions are calculated using the rendita catastale as one of the bases.
How to Find Your Rendita Catastale
The rendita catastale is shown on:
- Visura catastale — a property information document you can obtain from the catasto. You can request this at any Agenzia delle Entrate office or through the online ADE portal (requires SPID). The visura shows the property's category (A2 for residential, A3, etc.), class, floor area in vani (rooms), and the rendita catastale.
- Property purchase deeds (atti notarili) — the rendita catastale is typically stated in the notarial deed when the property was bought
- Annual tax bills (IMU notices) from your municipality often reference the rendita as the starting point for their calculation
Multipliers by Property Type
The standard 160 multiplier used in IMU calculations applies to most residential properties (categories A/2 through A/7). Different multipliers apply to other property types:
- Category A/1, A/8, A/9 (luxury): multiplier 160, but no IMU primary residence exemption
- Offices (A/10): multiplier 80
- Commercial (C/1): multiplier 55
- Agricultural land: different formula entirely
Understanding your property's cadastral category matters for calculating your IMU correctly.