| 31 Aug 12 | Maicon |  InternazionaleINT | → |  Manchester CityMNC | Undisclosed |
| 31 Aug 12 | Maicon | InternazionaleINT | → | Manchester CityMNC | Undisclosed |
| 29 Aug 12 | J. De León Julio César De León | InternazionaleINT | → |  Queens Park RangersQPR | Undisclosed |
| 29 Aug 12 | J. De León Julio César De León | InternazionaleINT | → | Queens Park RangersQPR | Undisclosed |
| 22 Aug 12 | A. Cassano Antonio Cassano |  AC MilanMIL | → | InternazionaleINT | Undisclosed |
| 22 Aug 12 | G. Pazzini Giampaolo Pazzini | InternazionaleINT | → | AC MilanMIL | Undisclosed |
| 28 Jul 12 | L. Castaignos Luc Castaignos | InternazionaleINT | → |  FC TwenteTWE | Undisclosed |
| 28 Jul 12 | L. Castaignos Luc Castaignos | InternazionaleINT | → | FC TwenteTWE | Undisclosed |
| 23 Jul 12 | Palombo | InternazionaleINT | → |  SampdoriaSAM | Undisclosed |
| 18 Jul 12 | M. Zárate Mauro Zárate | InternazionaleINT | → |  LazioLAZ | Loan |
| 18 Jul 12 | S. Muntari Sulley Muntari | InternazionaleINT | → | AC MilanMIL | Free |
| 18 Jul 12 | R. Palacio Rodrigo Palacio |  GenoaGEN | → | InternazionaleINT | 9240000 |
| 18 Jul 12 | G. Pandev Goran Pandev | InternazionaleINT | → |  NapoliNAP | 6600000 |
| 18 Jul 12 | S. Handanovic Samir Handanovic |  UdineseUDN | → | InternazionaleINT | Undisclosed |
| 18 Jul 12 | L. Caldirola Luca Caldirola | InternazionaleINT | → | CXXCesenaCesena | Free |
| 18 Jul 12 | D. Faraoni Davide Faraoni | InternazionaleINT | → | UdineseUDN | Free |
| 18 Jul 12 | P. Orlandoni Paolo Orlandoni | InternazionaleINT | → | RXXRetiradoRetirado | Free |
| 18 Jul 12 | L. da Silva Lúcio | InternazionaleINT | → |  JuventusJUV | Free |
| 18 Jul 12 | Jonathan |  ParmaPAR | → | InternazionaleINT | Loan |
| 17 Jul 12 | P. Coutinho Philippe Coutinho |  EspanyolESP | → | InternazionaleINT | Loan |
| 17 Jul 12 | P. Coutinho Philippe Coutinho | EspanyolESP | → | InternazionaleINT | Loan |
| 06 Jul 12 | M. Silvestre Matías Silvestre |  PalermoPAL | → | InternazionaleINT | Loan |
| 06 Jul 12 | D. Forlán Diego Forlán | InternazionaleINT | → |  InternacionalINT | Free |
| 06 Jul 12 | D. Forlán Diego Forlán | InternazionaleINT | → | InternacionalINT | Free |
| 17 May 12 | F. Guarín Fredy Guarín | InternazionaleINT | → |  FC PortoPOR | Undisclosed |