| Regione | Deduzione per abitazione principale | Oneri deducibili | Reddito imponibile | |||
|---|---|---|---|---|---|---|
| Frequenza | Ammontare | Frequenza | Ammontare | Frequenza | Ammontare | |
| Piemonte | 643.794 | 315.053 | 226.990 | 569.710 | 1.645.105 | 39.870.293 |
| Valle d'Aosta | 19.228 | 11.127 | 7.221 | 16.991 | 53.783 | 1.224.559 |
| Lombardia | 1.712.393 | 756.649 | 577.418 | 1.509.808 | 4.086.789 | 110.654.372 |
| Liguria | 212.170 | 120.998 | 78.766 | 183.117 | 596.156 | 13.573.114 |
| Trentino Alto Adige (P.A. Trento) | 76.492 | 36.903 | 38.102 | 101.564 | 256.955 | 5.589.225 |
| Trentino Alto Adige (P.A. Bolzano) | 20.961 | 12.723 | 43.026 | 133.320 | 283.771 | 6.766.224 |
| Veneto | 811.538 | 372.051 | 347.764 | 805.386 | 2.063.257 | 48.405.878 |
| Friuli Venezia Giulia | 217.506 | 106.051 | 78.288 | 191.859 | 509.368 | 11.957.066 |
| Emilia Romagna | 732.501 | 361.935 | 359.099 | 761.355 | 1.908.370 | 46.417.189 |
| Toscana | 544.464 | 274.613 | 224.897 | 506.178 | 1.470.212 | 33.193.746 |
| Umbria | 121.182 | 51.405 | 51.957 | 113.535 | 327.099 | 6.968.903 |
| Marche | 224.562 | 86.674 | 88.652 | 224.193 | 598.928 | 12.616.115 |
| Lazio | 830.182 | 566.428 | 269.105 | 525.610 | 2.173.197 | 53.245.125 |
| Abruzzo | 167.230 | 75.851 | 53.956 | 109.485 | 472.959 | 9.402.857 |
| Molise | 36.761 | 17.335 | 12.813 | 25.370 | 98.004 | 1.856.793 |
| Campania | 445.008 | 213.560 | 144.471 | 307.955 | 1.735.123 | 31.910.503 |
| Puglia | 477.871 | 215.101 | 126.178 | 252.849 | 1.340.035 | 23.472.650 |
| Basilicata | 68.352 | 23.673 | 21.242 | 40.550 | 196.170 | 3.549.478 |
| Calabria | 170.473 | 57.683 | 45.580 | 85.682 | 608.452 | 9.707.742 |
| Sicilia | 487.196 | 177.509 | 128.214 | 262.044 | 1.460.203 | 26.307.830 |
| Sardegna | 190.224 | 76.998 | 50.883 | 100.149 | 558.690 | 10.586.487 |
| Non indicata | 0 | 0 | 0 | 0 | 665 | 6.741 |
| TOTALE | 8.210.088 | 3.930.318 | 2.974.622 | 6.826.710 | 22.443.291 | 507.282.888 |
