| Regione | Deduzione per abitazione principale | Oneri deducibili | Reddito imponibile | |||
|---|---|---|---|---|---|---|
| Frequenza | Ammontare | Frequenza | Ammontare | Frequenza | Ammontare | |
| Piemonte | 1.447.602 | 708.291 | 1.100.003 | 1.999.110 | 3.176.499 | 64.337.009 |
| Valle d'Aosta | 41.682 | 24.019 | 36.094 | 69.933 | 98.096 | 2.008.133 |
| Lombardia | 3.252.893 | 1.472.603 | 2.490.341 | 4.828.750 | 6.987.324 | 157.354.600 |
| Liguria | 544.408 | 324.623 | 394.892 | 719.547 | 1.190.478 | 24.208.047 |
| Trentino Alto Adige (P.A. Trento) | 164.836 | 78.745 | 163.902 | 295.948 | 406.109 | 7.933.991 |
| Trentino Alto Adige (P.A. Bolzano) | 128.951 | 84.566 | 125.355 | 303.352 | 405.629 | 8.295.890 |
| Veneto | 1.594.223 | 774.436 | 1.466.889 | 2.454.304 | 3.500.260 | 68.687.107 |
| Friuli Venezia Giulia | 434.652 | 218.663 | 367.308 | 550.586 | 928.524 | 18.245.799 |
| Emilia Romagna | 1.516.682 | 770.244 | 1.427.558 | 2.297.137 | 3.296.463 | 67.455.165 |
| Toscana | 1.176.227 | 632.053 | 1.031.745 | 1.699.843 | 2.679.454 | 52.259.476 |
| Umbria | 269.059 | 115.298 | 232.366 | 359.441 | 628.852 | 11.411.472 |
| Marche | 516.594 | 202.475 | 427.348 | 720.219 | 1.119.831 | 19.951.922 |
| Lazio | 1.654.793 | 1.149.766 | 1.191.681 | 1.759.361 | 3.705.984 | 80.354.476 |
| Abruzzo | 364.886 | 161.954 | 263.448 | 399.759 | 906.923 | 14.889.472 |
| Molise | 94.103 | 39.077 | 60.971 | 95.357 | 213.540 | 3.209.106 |
| Campania | 983.424 | 477.107 | 715.651 | 1.041.507 | 3.035.780 | 49.100.625 |
| Puglia | 1.148.135 | 495.917 | 736.078 | 959.057 | 2.490.337 | 38.065.093 |
| Basilicata | 159.420 | 51.051 | 101.313 | 143.738 | 375.093 | 5.559.672 |
| Calabria | 387.474 | 122.433 | 263.163 | 335.791 | 1.189.434 | 16.807.522 |
| Sicilia | 1.244.040 | 426.596 | 701.964 | 928.277 | 2.880.863 | 44.634.483 |
| Sardegna | 418.970 | 180.515 | 299.479 | 439.400 | 1.050.339 | 17.442.360 |
| Non indicata | 0 | 0 | 0 | 0 | 1.201 | 7.862 |
| TOTALE | 17.543.054 | 8.510.433 | 13.597.549 | 22.400.416 | 40.267.013 | 772.219.281 |
