Illustrative calculation for €50,000 gross annual income.
Flat-rate regime (regime forfettario, 15%, 67% coefficient)
Flat-rate regime: 67% coefficiente (ATECO 62), imposta sostitutiva 15% (5% in years 1-2), plus INPS Gestione Separata 26.07%.
| Forfettario income (ATECO coefficiente) | −€33,500 |
| INPS Gestione Separata (26.07%) | €8,733 |
| Imposta sostitutiva | €3,715 |
| Total tax & contributions | €12,448 |
| Effective rate | 24.9% |
| Net income | €37,552 |
Assumptions
- Coefficiente di redditività 67% for ATECO 62 (IT / software consultancy; residual "altre attività" group in Allegato to L. 190/2014). Other ATECO groups use 40-86% (e.g. 78% for professional/scientific codes 69-75)
- Established: ricavi/compensi above €85,000 are unavailable (exit from the following year under L. 190/2014 as amended / Agenzia / Circ. 32/E/2023). Year 1 and Year 2 remain available up to €100,000; between €85,000 and €100,000 the regime is lost from the following year. Above €100,000 the regime is unavailable in every year (immediate exit). Calculator, rate hub and Europe comparison use these ceilings
- Imposta sostitutiva 15% on (ricavi × coefficiente minus compulsory INPS). Year 1 and Year 2 of the selector use 5% when new-activity conditions are assumed met (no prior business/profession in the previous 3 years; not a mere continuation; Established = year 3+ at 15%)
- INPS Gestione Separata for professionisti without a private cassa: 26.07% on forfettario income (ricavi × coefficiente), capped at massimale €122,295 (INPS Circ. 8/2026). Rivalsa 4% on invoices not modelled as extra revenue
- Gestione Artigiani/Commercianti (fixed minimum contributions with a 35% reduction for forfettari) is not modelled; only Gestione Separata professionals
- Employee-income exclusion (€35,000 prior-year limit for 2025-2026), employee-cost cap (€20,000), and other exclusion causes are assumed not to apply
- VAT (IVA) out of scope: forfettario does not charge IVA on invoices
- Effective rate is total tax and contributions over gross revenue
Sources
- Agenzia delle Entrate: Regime forfetario (requisiti, 15%/5%, coefficienti)
- Agenzia delle Entrate: Circolare 32/E/2023 (forfetario, soglia €100,000)
- INPS: Gestione Separata aliquote 2026 (Circolare n. 8/2026)
- INPS Circolare 8/2026 PDF: aliquota 26,07%, massimale €122.295
- Normattiva: Legge 30 dicembre 2025, n. 199 (bilancio 2026; IRPEF 23%/33%/43%)
- Agenzia delle Entrate: Lavoratori impatriati (art. 5 D.Lgs. 209/2023), anche lavoro autonomo
- Normattiva: art. 13 TUIR (detrazioni per redditi di lavoro)
Who it's for
- Italian tax resident with partita IVA in the regime forfettario (L. 190/2014)
- Ricavi/compensi within ceilings: Established ≤ €85,000; Year 1 / Year 2 ≤ €100,000 (immediate exit above €100,000)
- Professionista without a private cassa previdenziale (Gestione Separata)