Flat-rate scheme (forfettario) vs Joint-stock company (SPA) — tax comparison 2026

Compare the tax burden of the two legal forms with your own numbers, using each calculator below.

Flat-rate scheme (forfettario)Joint-stock company (SPA)
DescriptionSingle substitute tax on income computed with the ATECO profitability coefficient.Same as SRL (limited company).

Official sources

  • Agenzia delle Entrate — IRPEF, IRES, IRAP, regime forfettario
  • INPS — Contributi Gestione Separata / artigiani-commercianti
  • Normattiva — Testi di legge ufficiali + Legge di Bilancio