IRAP in Lazio: who pays it, how it is calculated, and when it is zero

In a nutshell

IRAP (Imposta Regionale sulle Attività Produttive -- Italy's regional tax on productive activities) is a tax that businesses pay to the Regione Lazio based on the value they generate, not on their profit. That means you can close the year at a loss and still owe IRAP. Since 2022, sole traders and individual self-employed professionals are permanently out of scope. If you run a limited company (SRL) or a partnership, however, you are still subject to it.

At a glance

Cost	3.9% in Lazio for standard businesses. 5.57% for banks, 6.82% for insurance companies.
Timeline	IRAP return due by 30 November of the following year. Instalments and balance paid via F24 (the universal Italian payment form for taxes and contributions).
How	Everything done electronically. Revenue goes directly to the Regione Lazio.
Documents	Financial statements, net-value-of-production calculation, IRAP return form.

Who still pays IRAP after 2022

The 2022 Budget Law (L. 234/2021) abolished IRAP for sole traders and individual self-employed professionals from the 2022 tax year onwards. If you are a lawyer, architect, or consultant operating under your own Partita IVA (Italian VAT number -- required to invoice as a self-employed worker), you no longer pay IRAP.

The following are still subject to IRAP:

• Limited companies: SRL, SRLS, SPA, SAPA, cooperatives
• Partnerships: SNC, SAS, general partnerships with commercial activity
• Professional associations and joint practices (important: these remained in scope even after 2022, because they are not natural persons)
• Banks and financial intermediaries (higher rates apply)
• Insurance companies (even higher rate)

If you operate under Italy's flat-rate regime (regime forfettario), you are excluded from IRAP in any case: the substitute tax of 5% or 15% replaces IRAP, IRPEF (Italian personal income tax), and local surcharges all in one.

The tax base: not your profit

This is where most people get confused. IRAP does not look at profit -- it looks at the net value of production, meaning how much your business has produced after deducting the cost of goods and services. Staff costs, however, are not directly deductible from the basic calculation; they stay outside the base, though specific deductions allow you to recover them later (see below).

For a limited company (SRL) using the balance-sheet method, the formula is:

Revenue and value of production (line A of the Income Statement)
minus Production costs (line B), EXCLUDING:
    - personnel costs (B.9)
    - write-downs on fixed assets (B.10c)
    - write-downs on receivables (B.10d)
    - provisions for risks (B.12, B.13)
= IRAP net value of production (taxable base)

For partnerships the method is slightly different, based on typical revenues minus the cost of raw materials, services, depreciation, and leasing fees (net of the interest component).

Deductions that can dramatically cut the bill

The practical strength of IRAP today lies in its labour-cost deductions, introduced specifically to avoid penalising businesses with stable workforces.

The most important one: since 2015, the full cost of permanent (open-ended) employees is deductible. In practice, if all your employees are on permanent contracts, that entire payroll drops out of the IRAP taxable base.

On top of this, there are wedge-tax deductions for each permanent employee:

• A flat 7,500 euro per employee per year
• An additional 7,500 euro for women and workers under 35

Also fully deductible: social-security and welfare contributions for permanent employees, INAIL (Italy's workplace-injury insurance institute) premiums, costs for apprentices, costs for workers with disabilities, and training expenditure.

For businesses with a taxable base below 180,999.91 euro a sliding mini-deduction applies (ranging from 8,000 down to 2,000 euro), further reducing the amount taxed.

The net result: an SRL with a large permanent workforce can end up with an IRAP taxable base very close to zero, even when its total productive output is substantial.

Is IRAP deductible against IRES?

The general rule is no -- IRAP is not deductible against IRES (Italy's corporate income tax) or IRPEF. There are, however, two important exceptions:

• The IRAP portion attributable to employee and equivalent labour costs is fully deductible against IRES (L. 296/2006, DL 185/2008). This must be calculated separately and either offset against IRES or claimed as a refund.
• 10% of IRAP paid is deductible if the taxable base includes net interest expense (less common after recent reforms).

Do not overlook this deduction -- it is real money off your IRES bill that many companies simply fail to calculate.

Filing and payment

The IRAP return is a standalone form, separate from the income-tax return (Redditi PF or Redditi SC). It must be filed by 30 November of the year following the end of the financial year, exclusively online via the Agenzia delle Entrate (Italy's tax-revenue agency) portal.

Payments are made via F24 using these tax codes:

• 3800 -- IRAP balance
• 3812 -- First IRAP instalment (40%)
• 3813 -- Second IRAP instalment (60%)

Deadlines align with IRES: balance and first instalment by 30 June, second instalment by 30 November.

Mistakes to avoid

1. Forgetting the IRAP return. It is a separate form from Redditi SC or Redditi PF -- filing just the income-tax return is not enough. Missing the IRAP return triggers penalties and an automatic assessment.
2. Treating IRAP as entirely non-deductible. The portion linked to labour costs is deductible against IRES. This must be calculated every year; ignoring it means paying more IRES than you legally owe.
3. Applying the standard rate to all sectors. Banks (5.57%) and insurance companies (6.82%) face rates well above the 3.9% standard. Always check the updated rates on the Regione Lazio website.

Special cases

Professional associations: even after the 2022 reform, these still pay IRAP because they are collective entities, not natural persons. The 2022 exemption applies only to individual self-employed professionals.

Businesses based in Rome with activity in other regions: the taxable base must be apportioned across regions in proportion to the payroll of staff working in each (and immovable property). You must complete the IR section of the IRAP return. Ignoring the apportionment exposes you to double taxation or disputes.

A company that closes the year at a loss: IRAP is still owed, because it taxes productive output, not profit. Thanks to the full deductibility of permanent-employee costs, however, the bill can be very low even in tough years.

Permanent establishment of a foreign company in Italy: subject to IRAP on the value added attributable to the permanent establishment. The competent region is the one where the permanent establishment is located.

Apprentices: their full cost -- wages and contributions -- is deductible from IRAP.

Official sources

• Agenzia Entrate -- IRAP return 2025
• MEF -- IRAP (regional taxation)
• Regione Lazio -- Taxes and finance
• Normattiva -- D.Lgs. 446/1997
• Normattiva -- L. 234/2021
• Agenzia Entrate -- Direct taxes

Legal references: D.Lgs. 446/1997 (IRAP establishment); L. 234/2021 art. 1 c. 8 (abolition of IRAP for natural persons from 2022); L. 190/2014 art. 1 c. 20 (full deductibility of permanent-employee costs); L. 296/2006 art. 1 c. 51 (IRAP deductibility against IRES); DL 185/2008 art. 6; art. 11 D.Lgs. 446/97 (deductions); LR Lazio 8/2018 (rates).