The rate is high because two separate increases stack
A Naples salary carries three income taxes: national IRPEF, which the Italy salary page takes apart, plus a regional and a municipal surcharge. Campania is the reason the last two are worth reading about.
Campania’s regional surcharge runs 1.73% up to €15,000, 2.96% to €28,000, 3.2% to €50,000, and 3.33% above that, which is the statutory maximum no region may pass.
Those published rates are a sum, not a single decision. Underneath sits the 1.23% national base rate every region starts from, then Campania’s own increases voted in its regional law, then a further 0.30 points that national law adds automatically to a region in a health-deficit recovery plan when it misses the plan’s targets, and which a 2013 decree imposed on Campania by name from 2014 onwards. The regional law is even drafted around it, setting its own increases while leaving that provision standing. So the number you pay is a legal consequence of the region’s health accounts, not a line anyone in Naples chose independently.
Naples charges above the ordinary municipal cap
Ordinary Italian cities are capped at 0.8%. Naples charges 1%, and it got there in two moves: 0.8% through 2022, 0.9% from 2023, the current rate from 2024. The derogation that exists for a city in that position is the deficit-repayment agreement with the government that a 2021 statute allows, which lets a signatory comune raise the surcharge past the general limit. We have not read an official text tying Naples’ particular decisions to that agreement, so we do not assert it. What is established is the published rate itself, and publication on the ministry’s portal is what gives a municipal decision effect for the year.
The exemption is €12,000, and like every municipal exemption in Italy it is a cliff rather than an allowance. At €12,000 of taxable income Naples takes nothing. At €12,001 it takes €120.01, on the whole amount.
Where Campania is and is not the most expensive of the five
Add the two lines together and Campania is the heaviest of the five on ordinary salaries, up to roughly €30,000 of taxable income. Past that Lazio overtakes it, because Lazio’s scale reaches the statutory ceiling early and stays there while Campania’s middle bands sit below it. Above roughly €82,000 Piedmont moves ahead of both, on the strength of Turin’s top municipal band. Campania, Lazio and Piedmont in fact stay within about a hundred euro a year of each other across ordinary salaries, so the choice between them is close to a coin toss. The gap that matters on this site is the one to Lombardy, several hundred euro below all three at any salary.
The only relief that reaches this tax, and we do not apply it
Nothing you claim against national IRPEF reduces either surcharge. The detrazioni are credits against the tax rather than deductions from income, so they leave the surcharge base whole, and they settle only one question about it: in a year when IRPEF net of credits comes out at zero, neither surcharge is charged at all. That makes the region’s own credits the only relief that reaches this tax, and Campania grants two of them.
The first is for each dependent child and requires you to have at least two of them, which is a condition and not a starting point: with two children the credit is granted twice, counted from the first child. The second is larger, applies to each dependent child with a disability, and carries no two-child condition. Both stop above an income limit measured for surcharge purposes, both are apportioned by the months and the share of dependency, and neither can create a refund if it exceeds the surcharge due. The calculator has no children input for either, so it leaves them out, and the error runs one way only: if you qualify, your real Campania bill is lower than the figure above, never higher.
What changed in 2026
The regional rates were republished for 2026 unchanged, citing the same norms as the year before, and Campania passed no amending law. Which of them reaches you is decided by where your tax domicile was on 1 January, with no pro-rating for a move during the year. What is unsettled is the city side. Naples had adopted no 2026 decision at our last verification, so its previous year’s rate and exemption carry over by tacit extension, and that is what the calculator applies. Those two figures are flagged provisional here for that reason, not because the value is in doubt.