| Regione | Deduzione per abitazione principale | Oneri deducibili | Reddito imponibile | |||
|---|---|---|---|---|---|---|
| Frequenza | Ammontare | Frequenza | Ammontare | Frequenza | Ammontare | |
| Piemonte | 1.440.339 | 725.777 | 596.211 | 2.387.340 | 3.066.093 | 66.096.756 |
| Valle d'Aosta | 42.188 | 25.126 | 19.421 | 77.347 | 93.995 | 1.983.859 |
| Lombardia | 3.312.488 | 1.539.834 | 1.375.399 | 5.839.340 | 6.903.290 | 164.343.928 |
| Liguria | 524.277 | 318.128 | 214.553 | 812.998 | 1.136.087 | 24.157.903 |
| Trentino Alto Adige (P.A. Trento) | 147.822 | 73.817 | 85.796 | 342.543 | 406.011 | 8.243.250 |
| Trentino Alto Adige (P.A. Bolzano) | 45.922 | 29.653 | 85.890 | 403.076 | 412.434 | 9.219.773 |
| Veneto | 1.639.215 | 818.448 | 826.069 | 2.944.380 | 3.442.809 | 72.484.269 |
| Friuli Venezia Giulia | 439.026 | 226.775 | 176.017 | 657.560 | 896.966 | 18.845.138 |
| Emilia Romagna | 1.547.661 | 814.811 | 876.034 | 2.850.367 | 3.234.658 | 70.939.265 |
| Toscana | 1.175.915 | 644.869 | 548.621 | 1.948.487 | 2.618.841 | 53.904.829 |
| Umbria | 271.640 | 120.979 | 126.303 | 400.631 | 603.481 | 11.503.824 |
| Marche | 513.799 | 208.144 | 220.219 | 809.799 | 1.072.455 | 20.256.021 |
| Lazio | 1.678.926 | 1.210.492 | 621.855 | 1.958.509 | 3.711.407 | 82.418.459 |
| Abruzzo | 379.759 | 175.236 | 135.450 | 441.812 | 868.512 | 15.138.027 |
| Molise | 94.136 | 41.918 | 33.805 | 103.424 | 202.706 | 3.189.783 |
| Campania | 997.499 | 498.652 | 361.857 | 1.190.779 | 3.042.022 | 50.966.543 |
| Puglia | 1.141.028 | 518.008 | 336.396 | 1.105.051 | 2.439.392 | 39.002.953 |
| Basilicata | 161.327 | 54.455 | 53.348 | 168.020 | 364.891 | 5.773.302 |
| Calabria | 395.416 | 130.263 | 118.164 | 373.260 | 1.146.496 | 16.922.264 |
| Sicilia | 1.193.130 | 431.038 | 313.659 | 1.019.628 | 2.774.053 | 44.468.766 |
| Sardegna | 427.143 | 186.845 | 149.603 | 490.847 | 1.015.416 | 17.613.593 |
| Non indicata | 40 | 24 | 79 | 485 | 5.241 | 32.472 |
| TOTALE | 17.568.696 | 8.793.294 | 7.274.749 | 26.325.682 | 39.457.256 | 797.504.979 |
