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Compare regimes Updated for 2026

Forfettario 5% vs 15% substitute tax

Inside the forfettario there are two substitute-tax rates: 5% for the first five years of a genuinely new activity, and 15% thereafter. The base (revenue × coefficient, minus INPS) is identical — only the rate changes — so the 5% start is a real, time-limited saving worth claiming if you qualify.1

5% rate
Choose it when

First 5 years of a genuinely new activity — you didn't merely continue previous self-employed/employed work in the same field.

15% rate
Choose it when

From year 6, or immediately if your activity doesn't meet the 'new activity' conditions.

See the crossover

All four regimes at once (professional 78% coefficient shown — open a profession page for your exact coefficient).

€50,000
€5k€85k cap€200k+

Forfettario taxable base = revenue × 78% coefficient (your activity). INPS 26.07% and the 5%/15% substitute tax are computed on that base.

Forfettario 5% (new business)
BEST
€38,391net · 23% effective
5% on the 78% coefficient base + INPS 26.07% on it
Net€38,391(76.8%)
INPS€10,167(20.3%)
Flat tax€1,442(2.9%)
Forfettario 15%
€35,508net · 29% effective
15% on the 78% coefficient base + INPS 26.07% on it
Net€35,508(71.0%)
INPS€10,167(20.3%)
Flat tax€4,325(8.6%)
Ordinario + Impatriati 50%
€33,222net · 34% effective
IRPEF on 50% of (revenue − INPS) + INPS 26.07% up to €122,295 (D.Lgs. 209/2023)
Net€33,222(66.4%)
INPS€13,035(26.1%)
IRPEF + Addiz€3,743(7.5%)
Ordinario (no relief)
€27,197net · 46% effective
Progressive IRPEF on (revenue − INPS) + INPS 26.07% up to €122,295
Net€27,197(54.4%)
INPS€13,035(26.1%)
IRPEF + Addiz€9,768(19.5%)
Net take-home vs revenue — professional (78% coefficient)

Forfettario lines stop at the €85k cap. Same deterministic engine as the TaxCompass chat.

The verdict

If you qualify, the 5% rate cuts your substitute tax by two-thirds for five years — a large early-stage saving. The eligibility test (genuinely new activity, not a relabelled continuation) is where people slip; the calculator shows the euro gap between the two.2

Frequently asked questions

Who qualifies for the 5% forfettario rate?

Those starting a genuinely new activity: you must not have practised the same or a similar activity in the previous three years, and the activity can't be a mere continuation of prior employment (with limited exceptions). It lasts five years.

Terms used on this page

Other comparisons

Sources

  1. 1.Normattiva — L. 190/2014, art. 1 commi 54–89 e Allegato 4 (regime forfettario, coefficienti di redditività)
  2. 2.Agenzia delle Entrate — Regime forfetario: le regole

Every figure on this page is grounded in primary sources — the same standard as the TaxCompass chat. This is sourced orientation, not tax advice.

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