How much does an accountant pay in contributions? The 12% CNPADC soggettivo, integrativo and 2026 minimums

Take an accountant on the flat-rate regime billing €40,000 a year, enrolled for more than 5 years (so without the new-member exemption). The profitability coefficient for the profession is 78%, so the income the soggettivo is computed on is €31,200.

• Soggettivo contribution: 12% of €31,200 = €3,744. It is above the €3,180 floor, so the full amount is due.
• Integrativo contribution: 4% of €40,000 = €1,600. This one you charge in-invoice: your clients pay it, you collect it and pass it on to CNPADC. It is not income and you pay no tax on it.
• Maternity: a flat €77.09, the same for everyone.

Out of your own pocket that is about €3,821 (soggettivo plus maternity); the integrativo passes through your account but the cost is the client's. The minimums are paid in two instalments during the year, with the balance the following year.

The full picture includes the tax: on the €31,200 of flat-rate income, less the €3,821 of contributions paid, €27,379 is taxable. At 15% that is about €4,107; at the 5% start-up rate, about €1,369. All in, between fund and tax, on €40,000 billed you keep between €31,500 and €34,500 depending on the rate.

The minimums — €3,180 soggettivo and €954 integrativo — are the hurdle of the early years, but CNPADC offers a meaningful break for recent enrollees.

Members who enrol before 35 are exempt, for the first five years, from both minimums: they pay only 12% on actual professional income and 4% on actual turnover. In a low-income year the contributions scale down; if income is zero, only maternity is due. That is why, in the second chart below, the under-35 line has no floor and starts near zero, while the standard member still starts from the €3,180 soggettivo minimum.

Members enrolling after 35 get a narrower break: in the first five years they are exempt from the soggettivo minimum only (paying 12% on the actual amount), but the €954 integrativo minimum still applies. In both cases the exemption is on the minimums, not the rates: above the threshold the full percentages return.

A common misconception about the flat-rate regime: the 35% contribution reduction many guides mention applies only to artisans and traders enrolled with INPS. CNPADC members have nothing to do with it: fund contributions are paid in full, flat-rate or not. The regime is still worthwhile for many accountants, thanks to the 15% rate (5% for the first 5 years of a new activity) and the minimal bookkeeping.

Two details that make a difference on the return. First: the 4% integrativo charged in-invoice does not count towards income or the €85,000 flat-rate ceiling, unlike the 4% INPS surcharge of fund-less professionals, which is a fee to all effects. Second: the soggettivo and maternity paid in the year are deducted from flat-rate income in the LM section before the substitute tax; on about €3,800 of contributions, at 15% that is nearly €600 less tax.

The interplay of the 78% coefficient, the deduction of contributions and the reduced rate makes a by-hand calculation slippery. The simulator does the steps in the right order and also shows what happens when the rate moves from 5% to 15%.