IMU Property Tax in Italy 2026: Second Homes, Deadlines and 7 Mistakes to Avoid
How is IMU property tax calculated on a second home in Italy in 2026?
Who is liable, when is payment due and what should you check before paying?
Italy’s municipal property tax, known as IMU (Imposta Municipale Propria), depends on the property, the taxpayer’s legal position and the rules applying in the municipality where the property is located.
Not every property is treated in the same way.
A qualifying main residence, a second home kept for personal use, a rental property and a home acquired through inheritance may each give rise to different IMU considerations.
A reliable guide to IMU tax in Italy must therefore start with the relevant facts rather than assume that one tax rate applies to every property.
In this guide, Studio Paci, Chartered Accountants in Milan, answers the questions most frequently raised by property owners, including non-residents: from IMU on second homes and payment deadlines to jointly owned properties and errors that can affect the amount payable.
How is IMU property tax calculated on a second home in Italy?
For a building recorded in the Italian Land Registry (Catasto), the assessment generally starts with its cadastral income (rendita catastale).
The applicable statutory uplift and property-category multiplier are then used to establish the taxable value.
The relevant municipal rate is applied, taking account of the ownership share, the period of liability and any exemptions or reductions that actually apply.
The key point is not simply the arithmetic.
Before calculating IMU on a second home in Italy, it is essential to identify the property’s correct tax classification and check the municipal provisions applying to the relevant tax year.
Main residence versus second home: what is the difference for IMU?
Everyday expressions such as “first home” and “second home” can be misleading.
For Italian property tax purposes, the important distinction is between a qualifying main residence (abitazione principale) and other properties.
A qualifying main residence is generally exempt from IMU, subject to statutory exceptions, including certain cadastral categories.
Importantly, having bought a property using Italy’s “first-home” purchase tax relief does not, by itself, mean that the property is exempt from IMU.
A second home, an unoccupied holiday property or a property used for purposes other than a qualifying main residence must therefore be assessed separately.
Changes of residence or changes in how a property is used may also affect the position.
Who pays IMU in Italy: owner, usufructuary or tenant?
As a general rule, IMU is payable by the owner or by the holder of a relevant right in rem, such as usufruct (usufrutto), in accordance with the statutory conditions.
Where a property is let under an ordinary rental agreement, the tenant does not automatically become liable for IMU.
In cases involving bare ownership (nuda proprietà), usufruct, joint ownership or other property rights, it is important to identify the person legally liable for the tax.
IMU payment deadlines in 2026: first instalment and balance
For most taxpayers, the ordinary IMU payment deadlines are 16 June for the first instalment (acconto) and 16 December for the final balance (saldo).
The balance is assessed with reference to the tax due for the year and payments already made, subject to the applicable rules.
Before paying the year-end IMU balance, check whether the property’s circumstances have changed since the first instalment and whether the rules for the relevant period have been correctly taken into account.
IMU rates in Italy in 2026: why the municipality matters
Italian IMU property tax rates are not necessarily the same throughout the country.
The national framework operates alongside municipal resolutions, and the treatment can vary according to the type and use of the property.
The correct rate must be verified for the specific property and tax year using the applicable official documents.
IMU on rental property in Italy: agreed-rent leases and family loans
A property let to tenants may still be subject to IMU.
The existence of a tenancy agreement does not, in itself, make the property exempt from Italian municipal property tax.
Properties rented under qualifying agreed-rent contracts (canone concordato) may be eligible for favourable tax treatment where the statutory conditions are met.
Similarly, granting a property to a family member for use under a free loan arrangement (comodato) can require specific checks: the arrangement alone does not automatically confer a tax reduction.
The type of contract, its registration, the parties’ circumstances and the relevant municipal rules should therefore be reviewed before the IMU liability is established.
IMU on jointly owned, inherited or usufruct properties
Property ownership is not always straightforward.
Where an Italian property is jointly owned, each co-owner must consider their own legal position.
An existing usufruct or another relevant right in rem may determine who is legally liable for IMU.
Where a property is purchased, sold or inherited during the year, the relevant periods and legal titles must be reconstructed carefully.
In these situations, checking cadastral records and supporting documents can help avoid incorrect IMU payments.
Seven common IMU calculation mistakes to avoid
IMU errors often result not from a difficult formula but from incomplete information or out-of-date records.
The following checks can help prevent problems before payment.
Paying IMU with form F24: what should you check?
IMU is ordinarily paid using Italy’s F24 payment form, subject to the permitted payment methods.
Before payment, check the destination municipality, the correct tax code (codice tributo), the tax year, the type of payment and the amount due.
If IMU has been paid late, underpaid or paid incorrectly, it may be necessary to consider voluntary correction under the Italian ravvedimento operoso procedure or another applicable remedy.
It is generally better to reconstruct the position before making any further payments.
What documents does an accountant need to check your IMU?
If you wish to ask an Italian accountant to review your IMU calculation, it helps to have the principal property details and any previous payment records ready.
Professional assistance can be particularly helpful if you own several properties, live outside Italy, have bought or sold during the year, let a property, share ownership, hold a relevant property right or are unsure whether previous IMU payments were correct.
An Italian chartered accountant can assist in reconstructing the taxpayer’s position, assessing the applicable rules and preparing agreed tax-related filings and payments within the scope of the professional engagement.
Studio Paci advises individuals, overseas owners and companies on Italian property-related tax matters.
For details of our service, visit our IMU tax calculation and assistance page or contact us to explain your circumstances.
Frequently asked questions about IMU tax in Italy (2026)
Do you pay IMU tax on your first home in Italy?
IMU is generally not due on a qualifying main residence where the legal requirements are satisfied, subject to exceptions.
The IMU concept of a main residence should not be confused with the separate “first-home” relief available for certain property purchases.
How do you calculate IMU tax on a second home in Italy?
Start with the cadastral records, determine the taxable value under the applicable rules, check the municipality’s official IMU rate and take into account the ownership share, period of liability and any reductions that genuinely apply.
A generic national rate is not sufficient.
Who pays IMU on a rented property in Italy?
As a general rule, liability lies with the owner or holder of a relevant right in rem, rather than an ordinary tenant solely because they occupy the property.
Is an empty house in Italy exempt from IMU?
A property does not become exempt from IMU merely because it is vacant or unused. Its actual legal and factual circumstances must be assessed.
Who pays IMU where there is usufruct or bare ownership?
The existence of a usufruct can affect who is liable for IMU. The legal title and the relevant property rights should be examined before allocating the tax obligation.
When is the IMU balance due in 2026?
For most taxpayers, the ordinary deadline for the final IMU payment is 16 December 2026, subject to any special rules that apply to the individual circumstances.
What if IMU tax was paid late or not paid in full?
Review the amounts due, the relevant deadlines and payments already made, then assess whether voluntary correction (ravvedimento operoso) or another available procedure is appropriate.
Can an Italian accountant review IMU and prepare form F24?
Yes. Reviewing IMU liability and preparing the F24 payment form can fall within an agreed professional engagement, depending on the client’s requirements and the scope of the work.
IMU in Italy 2026: why checking before paying matters
Calculating IMU is about more than a formula.
Correctly identifying the property, the person liable, the applicable municipal rules and any qualifying relief can make the difference between a proper payment and a problem that must be corrected later.
If you would like your Italian property tax position reviewed, learn more about Studio Paci’s professional IMU assistance service.
