| Regione | Deduzione per abitazione principale | Oneri deducibili | Reddito imponibile | |||
|---|---|---|---|---|---|---|
| Frequenza | Ammontare | Frequenza | Ammontare | Frequenza | Ammontare | |
| Piemonte | 698.658 | 374.546 | 184.338 | 585.386 | 1.205.723 | 28.155.721 |
| Valle d'Aosta | 20.577 | 13.051 | 5.365 | 16.701 | 34.691 | 823.366 |
| Lombardia | 1.480.454 | 733.587 | 448.060 | 1.528.457 | 2.503.846 | 62.322.293 |
| Liguria | 259.356 | 170.167 | 63.803 | 170.163 | 443.651 | 10.677.322 |
| Trentino Alto Adige (P.A. Trento) | 80.586 | 41.784 | 23.976 | 73.126 | 143.049 | 3.329.758 |
| Trentino Alto Adige (P.A. Bolzano) | 13.035 | 8.263 | 23.941 | 81.060 | 130.718 | 3.252.605 |
| Veneto | 781.411 | 426.349 | 287.084 | 699.642 | 1.261.252 | 28.789.889 |
| Friuli Venezia Giulia | 213.101 | 119.666 | 59.528 | 181.145 | 354.396 | 8.098.136 |
| Emilia Romagna | 747.285 | 429.510 | 342.638 | 784.060 | 1.204.454 | 29.198.895 |
| Toscana | 561.707 | 337.098 | 214.668 | 416.080 | 985.860 | 22.915.757 |
| Umbria | 139.311 | 66.456 | 41.148 | 90.256 | 242.496 | 5.286.339 |
| Marche | 256.704 | 112.549 | 66.728 | 187.952 | 417.789 | 8.905.736 |
| Lazio | 693.064 | 538.641 | 185.962 | 382.643 | 1.262.723 | 32.238.215 |
| Abruzzo | 181.851 | 88.502 | 32.784 | 77.020 | 332.222 | 6.512.221 |
| Molise | 46.934 | 21.320 | 7.892 | 18.920 | 83.975 | 1.474.622 |
| Campania | 418.384 | 217.031 | 82.420 | 175.710 | 1.043.432 | 20.593.327 |
| Puglia | 513.668 | 242.774 | 78.322 | 184.694 | 898.700 | 17.143.997 |
| Basilicata | 76.720 | 26.870 | 11.789 | 26.127 | 138.233 | 2.482.181 |
| Calabria | 190.281 | 61.846 | 24.214 | 51.719 | 442.579 | 7.763.222 |
| Sicilia | 532.887 | 198.170 | 72.815 | 164.904 | 1.003.555 | 19.038.393 |
| Sardegna | 208.583 | 97.586 | 41.699 | 97.205 | 392.599 | 7.851.197 |
| Non indicata | 0 | 0 | 0 | 0 | 4 | 17 |
| TOTALE | 8.114.557 | 4.325.768 | 2.299.174 | 5.992.970 | 14.525.947 | 326.853.210 |
