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Direct answers
- What is the ISTAT FOI index used for rent in Italy?
- The FOI (Famiglie di Operai e Impiegati — Families of Workers and Employees) is one of Italy's main consumer price indices, published monthly by ISTAT (the national statistics institute). For commercial leases (affitti commerciali), the FOI is the reference index used for annual rent indexation clauses under law 392/1978. The relevant figure is the FOI variation over the preceding 12 months compared to the same month in the prior year. Your landlord or commercialista will use the ISTAT website (istat.it) to obtain the precise current FOI percentage.
- What is the difference between full ISTAT adjustment and 75% adjustment?
- Italian commercial lease law permits two levels of ISTAT rent adjustment. Full adjustment: the rent increases by 100% of the FOI annual variation. Partial (75%) adjustment: the rent increases by only 75% of the FOI variation. The maximum permitted adjustment under law 392/1978 is 100% of FOI for commercial leases. However, many lease contracts are negotiated with a 75% FOI cap as a compromise between landlord and tenant interests. Check your specific lease contract (contratto di locazione commerciale) to see which formula applies.
- When can the landlord apply the ISTAT rent increase?
- The ISTAT adjustment can only be applied if the lease contract includes an explicit indexation clause. The landlord must formally request the increase in writing (raccomandata or PEC email with read receipt) at the anniversary date of the lease. Increases are not automatic — if the landlord fails to request the update in a given year, they cannot retroactively recover multiple years of missed adjustments in one go (this is the standard interpretation, though it can vary). Keep records of all rent increase communications.
- How do I find the current FOI percentage for my lease update?
- The current FOI annual variation is published monthly on the ISTAT website (istat.it) under 'Indici dei prezzi al consumo — FOI'. The figure you need is the annual average variation (variazione media annua) for the relevant 12-month period ending on your lease anniversary month. For example, if your lease anniversary is in March, you use the FOI variation for the 12-month period ending March of the current year versus March of the prior year. Your commercialista or real estate agent can provide the exact figure.
- Is the ISTAT rent increase subject to VAT in Italy?
- Commercial lease rent in Italy is generally exempt from VAT (esente IVA) under art. 10 of DPR 633/1972, unless the landlord has opted for VAT application (opzione per l'imponibilità IVA). If VAT applies (22%), both the base rent and the ISTAT indexation increase are subject to VAT. Registration tax (imposta di registro) is payable by the tenant at 1% of annual rent (for commercial leases) — and this also applies to any ISTAT-adjusted increase once the new rent figure is formally agreed.
- What has the FOI variation been in recent years in Italy?
- Italy's FOI annual variation has fluctuated significantly: 2020: +0.2%; 2021: +1.9%; 2022: +8.1%; 2023: +5.4%; 2024: +1.1%; 2025 (preliminary): approximately +1.3%. The 2022–2023 spike due to post-COVID inflation was particularly damaging for restaurants with ISTAT-indexed commercial leases, pushing rent increases of 6–8% in a single year. Restaurant operators who negotiated rent freezes or deferred adjustments during that period saved significant sums.
Quick answers
Frequently Asked Questions
What is the ISTAT FOI index used for rent in Italy?
The FOI (Famiglie di Operai e Impiegati — Families of Workers and Employees) is one of Italy's main consumer price indices, published monthly by ISTAT (the national statistics institute). For commercial leases (affitti commerciali), the FOI is the reference index used for annual rent indexation clauses under law 392/1978. The relevant figure is the FOI variation over the preceding 12 months compared to the same month in the prior year. Your landlord or commercialista will use the ISTAT website (istat.it) to obtain the precise current FOI percentage.
What is the difference between full ISTAT adjustment and 75% adjustment?
Italian commercial lease law permits two levels of ISTAT rent adjustment. Full adjustment: the rent increases by 100% of the FOI annual variation. Partial (75%) adjustment: the rent increases by only 75% of the FOI variation. The maximum permitted adjustment under law 392/1978 is 100% of FOI for commercial leases. However, many lease contracts are negotiated with a 75% FOI cap as a compromise between landlord and tenant interests. Check your specific lease contract (contratto di locazione commerciale) to see which formula applies.
When can the landlord apply the ISTAT rent increase?
The ISTAT adjustment can only be applied if the lease contract includes an explicit indexation clause. The landlord must formally request the increase in writing (raccomandata or PEC email with read receipt) at the anniversary date of the lease. Increases are not automatic — if the landlord fails to request the update in a given year, they cannot retroactively recover multiple years of missed adjustments in one go (this is the standard interpretation, though it can vary). Keep records of all rent increase communications.
How do I find the current FOI percentage for my lease update?
The current FOI annual variation is published monthly on the ISTAT website (istat.it) under 'Indici dei prezzi al consumo — FOI'. The figure you need is the annual average variation (variazione media annua) for the relevant 12-month period ending on your lease anniversary month. For example, if your lease anniversary is in March, you use the FOI variation for the 12-month period ending March of the current year versus March of the prior year. Your commercialista or real estate agent can provide the exact figure.
Is the ISTAT rent increase subject to VAT in Italy?
Commercial lease rent in Italy is generally exempt from VAT (esente IVA) under art. 10 of DPR 633/1972, unless the landlord has opted for VAT application (opzione per l'imponibilità IVA). If VAT applies (22%), both the base rent and the ISTAT indexation increase are subject to VAT. Registration tax (imposta di registro) is payable by the tenant at 1% of annual rent (for commercial leases) — and this also applies to any ISTAT-adjusted increase once the new rent figure is formally agreed.
What has the FOI variation been in recent years in Italy?
Italy's FOI annual variation has fluctuated significantly: 2020: +0.2%; 2021: +1.9%; 2022: +8.1%; 2023: +5.4%; 2024: +1.1%; 2025 (preliminary): approximately +1.3%. The 2022–2023 spike due to post-COVID inflation was particularly damaging for restaurants with ISTAT-indexed commercial leases, pushing rent increases of 6–8% in a single year. Restaurant operators who negotiated rent freezes or deferred adjustments during that period saved significant sums.