| Regione | Deduzione per abitazione principale | Oneri deducibili | Reddito imponibile | |||
|---|---|---|---|---|---|---|
| Frequenza | Ammontare | Frequenza | Ammontare | Frequenza | Ammontare | |
| Piemonte | 1.488.820 | 775.194 | 573.720 | 2.517.404 | 3.070.154 | 73.808.034 |
| Valle d'Aosta | 43.316 | 26.676 | 18.343 | 80.362 | 94.852 | 2.239.472 |
| Lombardia | 3.542.743 | 1.691.447 | 1.389.585 | 6.250.293 | 7.106.294 | 191.175.411 |
| Liguria | 532.683 | 334.760 | 202.151 | 840.526 | 1.131.095 | 26.438.642 |
| Trentino Alto Adige (P.A. Trento) | 177.791 | 89.593 | 85.033 | 396.391 | 424.091 | 9.924.514 |
| Trentino Alto Adige (P.A. Bolzano) | 35.166 | 21.846 | 91.956 | 445.047 | 426.865 | 11.042.028 |
| Veneto | 1.764.165 | 895.169 | 825.697 | 3.177.809 | 3.567.001 | 85.013.975 |
| Friuli Venezia Giulia | 463.025 | 244.227 | 175.752 | 713.657 | 912.065 | 21.539.222 |
| Emilia Romagna | 1.622.653 | 877.583 | 870.924 | 3.004.789 | 3.323.205 | 82.066.708 |
| Toscana | 1.235.711 | 689.865 | 610.966 | 2.045.083 | 2.656.750 | 61.646.112 |
| Umbria | 285.140 | 130.076 | 123.240 | 427.837 | 631.139 | 13.174.363 |
| Marche | 524.451 | 218.453 | 212.967 | 882.368 | 1.087.681 | 23.441.837 |
| Lazio | 1.735.606 | 1.269.414 | 612.333 | 1.963.501 | 3.742.905 | 92.509.208 |
| Abruzzo | 393.475 | 186.579 | 132.604 | 466.865 | 877.104 | 17.444.445 |
| Molise | 94.329 | 44.129 | 31.326 | 106.018 | 198.905 | 3.579.526 |
| Campania | 1.024.877 | 521.063 | 360.388 | 1.243.218 | 3.095.799 | 58.440.596 |
| Puglia | 1.167.841 | 547.196 | 325.411 | 1.198.020 | 2.468.285 | 44.989.178 |
| Basilicata | 161.525 | 57.148 | 50.408 | 174.134 | 357.491 | 6.484.457 |
| Calabria | 399.494 | 136.196 | 113.635 | 386.540 | 1.116.645 | 18.843.771 |
| Sicilia | 1.187.297 | 445.830 | 313.091 | 1.111.793 | 2.754.339 | 50.160.118 |
| Sardegna | 449.030 | 196.295 | 143.823 | 516.351 | 1.035.867 | 20.107.577 |
| Non indicata | 0 | 0 | 0 | 0 | 4.809 | 84.096 |
| TOTALE | 18.329.138 | 9.398.738 | 7.263.353 | 27.948.003 | 40.083.341 | 914.153.290 |
