| 31 Aug 13 | T. Pukki Teemu Pukki |  Schalke 04SCHA | → |  CelticCEL | Undisclosed |
| 31 Aug 13 | T. Pukki Teemu Pukki | Schalke 04SCHA | → | CelticCEL | Undisclosed |
| 30 Aug 13 | S. Bahoken Stéphane Bahoken |  NiceNICE | → |  St MirrenSTM | Loan |
| 30 Aug 13 | S. Bahoken Stéphane Bahoken | NiceNICE | → | St MirrenSTM | Loan |
| 09 Aug 13 | K. Wilson Kelvin Wilson | CelticCEL | → |  Nottingham ForestFOR | Undisclosed |
| 09 Aug 13 | K. Wilson Kelvin Wilson | CelticCEL | → | Nottingham ForestFOR | Undisclosed |
| 05 Aug 13 | C. Newton Conor Newton |  Newcastle UnitedNEW | → | St MirrenSTM | Loan |
| 05 Aug 13 | C. Newton Conor Newton | Newcastle UnitedNEW | → | St MirrenSTM | Loan |
| 26 Jul 13 | M. Hector Michael Hector |  ReadingREA | → |  AberdeenABER | Loan |
| 26 Jul 13 | M. Hector Michael Hector | ReadingREA | → | AberdeenABER | Loan |
| 26 Jul 13 | G. Hooper Gary Hooper | CelticCEL | → |  Norwich CityNOR | Undisclosed |
| 26 Jul 13 | G. Hooper Gary Hooper | CelticCEL | → | Norwich CityNOR | Undisclosed |
| 22 Jul 13 | G. Fraser Gary Fraser |  Bolton WanderersBOL | → |  Partick ThistlePAR | Loan |
| 22 Jul 13 | G. Fraser Gary Fraser | Bolton WanderersBOL | → | Partick ThistlePAR | Loan |
| 19 Jul 13 | H. Mukendi Henoc Mukendi |  LiverpoolLIV | → | Partick ThistlePAR | Loan |
| 19 Jul 13 | H. Mukendi Henoc Mukendi | LiverpoolLIV | → | Partick ThistlePAR | Loan |
| 11 Jul 13 | V. Wanyama Victor Wanyama | CelticCEL | → |  SouthamptonSOU | Undisclosed |
| 11 Jul 13 | V. Wanyama Victor Wanyama | CelticCEL | → | SouthamptonSOU | Undisclosed |
| 02 Jul 13 | D. Goodwillie David Goodwillie |  Blackburn RoversBLK | → |  Dundee UnitedDUN | Loan |
| 02 Jul 13 | D. Goodwillie David Goodwillie | Blackburn RoversBLK | → | Dundee UnitedDUN | Loan |
| 01 Jul 13 | Adam Evans |  BurnleyBUR | → |  Inverness Caledonian ThistleICT | Free |
| 01 Jul 13 | T. Rogne Thomas Rogne | CelticCEL | → | Bolton WanderersBOL | Undisclosed |
| 01 Jul 13 | J. Russell Johnny Russell | Dundee UnitedDUN | → |  Derby CountyDER | Undisclosed |
| 01 Jul 13 | R. McGivern Ryan McGivern |  Manchester CityMNC | → |  HibernianHIBS | Free |
| 01 Jul 13 | D. Wilson Danny Wilson | LiverpoolLIV | → |  Heart of MidlothianHOM | Free |
| 01 Jul 13 | D. Cornell David Cornell |  Swansea CitySWA | → | St MirrenSTM | Loan |
| 01 Jul 13 | G. Edwards Gwion Edwards | Swansea CitySWA | → |  St JohnstoneSTJO | Loan |
| 01 Jul 13 | G. Edwards Gwion Edwards | Swansea CitySWA | → | St JohnstoneSTJO | Loan |
| 01 Jul 13 | D. Cornell David Cornell | Swansea CitySWA | → | St MirrenSTM | Loan |
| 01 Jul 13 | G. Wylde Greg Wylde | Bolton WanderersBOL | → | AberdeenABER | Free |
| 01 Jul 13 | T. Rogne Thomas Rogne | CelticCEL | → | Bolton WanderersBOL | Undisclosed |
| 01 Jul 13 | J. Russell Johnny Russell | Dundee UnitedDUN | → | Derby CountyDER | Undisclosed |
| 01 Jul 13 | Adam Evans | BurnleyBUR | → | Inverness Caledonian ThistleICT | Free |
| 01 Jul 13 | D. Murphy Daryl Murphy | CelticCEL | → |  Ipswich TownIPS | Free |
| 01 Jul 13 | D. Randolph Darren Randolph |  MotherwellMOT | → |  Birmingham CityBIR | Free |
| 01 Jul 13 | A. Shinnie Andrew Shinnie | Inverness Caledonian ThistleICT | → | Birmingham CityBIR | Free |
| 01 Jul 13 | G. Wylde Greg Wylde | Bolton WanderersBOL | → | AberdeenABER | Free |
| 01 Jul 13 | D. Wilson Danny Wilson | LiverpoolLIV | → | Heart of MidlothianHOM | Free |
| 01 Jul 13 | A. Shinnie Andrew Shinnie | Inverness Caledonian ThistleICT | → | Birmingham CityBIR | Free |
| 01 Jul 13 | D. Randolph Darren Randolph | MotherwellMOT | → | Birmingham CityBIR | Free |
| 01 Jul 13 | D. Murphy Daryl Murphy | CelticCEL | → | Ipswich TownIPS | Free |
| 01 Jul 13 | R. McGivern Ryan McGivern | Manchester CityMNC | → | HibernianHIBS | Free |
| 24 Jun 13 | L. Shankland Lawrence Shankland |  Queen's ParkQUE | → | AberdeenABER | Undisclosed |
| 03 Jun 13 | A. Connolly Aidan Connolly | Queen's ParkQUE | → | Dundee UnitedDUN | Undisclosed |
| 03 Jun 13 | A. Robertson Andy Robertson | Queen's ParkQUE | → | Dundee UnitedDUN | Undisclosed |
| 15 Mar 13 | S. Puri Sander Puri | XXX | → | St MirrenSTM | Free |
| 09 Mar 13 | K. Thomson Kevin Thomson | XXX | → | HibernianHIBS | Free |
| 23 Feb 13 | K. Boyd Kris Boyd | XXX | → |  KilmarnockKIL | Free |
| 19 Feb 13 | A. Driver Andrew Driver | Heart of MidlothianHOM | → |  Houston Dynamo FCHOU | Loan |
| 19 Feb 13 | A. Driver Andrew Driver | Heart of MidlothianHOM | → | Houston Dynamo FCHOU | Loan |
| 18 Feb 13 | J. McFadden James McFadden | XXX | → | MotherwellMOT | Free |
| 31 Jan 13 | M. Reynolds Mark Reynolds |  Sheffield WednesdaySHW | → | AberdeenABER | Undisclosed |
| 31 Jan 13 | M. Abeid Mehdi Abeid | Newcastle UnitedNEW | → | St JohnstoneSTJO | Loan |
| 31 Jan 13 | P. Dummett Paul Dummett | Newcastle UnitedNEW | → | St MirrenSTM | Loan |
| 31 Jan 13 | M. Reynolds Mark Reynolds | Sheffield WednesdaySHW | → | AberdeenABER | Undisclosed |
| 31 Jan 13 | M. Abeid Mehdi Abeid | Newcastle UnitedNEW | → | St JohnstoneSTJO | Loan |
| 31 Jan 13 | P. Dummett Paul Dummett | Newcastle UnitedNEW | → | St MirrenSTM | Loan |
| 31 Jan 13 | G. Edwards Gwion Edwards | Swansea CitySWA | → | St JohnstoneSTJO | Loan |
| 31 Jan 13 | Conor Newton | Newcastle UnitedNEW | → | St MirrenSTM | Loan |
| 31 Jan 13 | G. Edwards Gwion Edwards | Swansea CitySWA | → | St JohnstoneSTJO | Loan |
| 31 Jan 13 | Conor Newton | Newcastle UnitedNEW | → | St MirrenSTM | Loan |
| 29 Jan 13 | M. Doughty Michael Doughty |  Queens Park RangersQPR | → | St JohnstoneSTJO | Loan |
| 29 Jan 13 | Jordan Gibbons | Queens Park RangersQPR | → | Inverness Caledonian ThistleICT | Loan |
| 29 Jan 13 | Jordan Gibbons | Queens Park RangersQPR | → | Inverness Caledonian ThistleICT | Loan |
| 29 Jan 13 | S. Clingan Sammy Clingan |  Doncaster RoversDON | → | KilmarnockKIL | Free |
| 29 Jan 13 | M. Doughty Michael Doughty | Queens Park RangersQPR | → | St JohnstoneSTJO | Loan |
| 28 Jan 13 | S. Robertson Scott Robertson |  BlackpoolBLP | → | HibernianHIBS | Free |
| 28 Jan 13 | S. Robertson Scott Robertson | BlackpoolBLP | → | HibernianHIBS | Free |
| 25 Jan 13 | Charlie Taylor |  Leeds UnitedLEE | → | Inverness Caledonian ThistleICT | Loan |
| 25 Jan 13 | Charlie Taylor | Leeds UnitedLEE | → | Inverness Caledonian ThistleICT | Loan |
| 25 Jan 13 | M. Ngoo Michael Ngoo | LiverpoolLIV | → | Heart of MidlothianHOM | Loan |
| 25 Jan 13 | M. Ngoo Michael Ngoo | LiverpoolLIV | → | Heart of MidlothianHOM | Loan |
| 24 Jan 13 | M. Bangura Mohamed Bangura | CelticCEL | → |  ElfsborgELF | Loan |
| 24 Jan 13 | E. Gonçalves Esmaël Gonçalves |  Rio AveRIO | → | St MirrenSTM | Loan |
| 23 Jan 13 | J. Brown Jordon Brown | AberdeenABER | → |  Forfar AthleticFOR | Loan |
| 22 Jan 13 | S. Wohlfarth Steffen Wohlfarth | XXX | → |  Ross CountyROSS | Free |
| 18 Jan 13 | D. Wilson Danny Wilson | LiverpoolLIV | → | Heart of MidlothianHOM | Loan |
| 18 Jan 13 | R. Fraser Ryan Fraser | AberdeenABER | → |  AFC BournemouthBOU | Undisclosed |
| 18 Jan 13 | D. Wilson Danny Wilson | LiverpoolLIV | → | Heart of MidlothianHOM | Loan |
| 17 Jan 13 | T. Rogic Tom Rogic |  Central Coast MarinersCCM | → | CelticCEL | Undisclosed |
| 17 Jan 13 | T. Rogic Tom Rogic | Central Coast MarinersCCM | → | CelticCEL | Undisclosed |
| 16 Jan 13 | M. Nelson Michael Nelson | KilmarnockKIL | → |  Bradford CityBRD | Undisclosed |
| 15 Jan 13 | Evangelos Ikonomou |  AtromitosATRO | → | Ross CountyROSS | Free |
| 11 Jan 13 | A. Hainault André Hainault | Houston Dynamo FCHOU | → | Ross CountyROSS | Free |
| 11 Jan 13 | L. Kelly Liam Kelly | KilmarnockKIL | → |  Bristol CityBRC | Undisclosed |
| 11 Jan 13 | L. Kelly Liam Kelly | KilmarnockKIL | → | Bristol CityBRC | Undisclosed |
| 11 Jan 13 | A. Hainault André Hainault | Houston Dynamo FCHOU | → | Ross CountyROSS | Free |
| 10 Jan 13 | I. Sproule Ivan Sproule | HibernianHIBS | → | Ross CountyROSS | Free |
| 09 Jan 13 | R. Gershon Rami Gershon |  Standard LiegeSTL | → | CelticCEL | Loan |
| 09 Jan 13 | K. Higginbotham Kallum Higginbotham |  Huddersfield TownHUD | → | MotherwellMOT | Loan |
| 09 Jan 13 | K. Higginbotham Kallum Higginbotham | Huddersfield TownHUD | → | MotherwellMOT | Loan |
| 08 Jan 13 | D. Devine Daniel Devine | XXX | → | Inverness Caledonian ThistleICT | Free |
| 03 Jan 13 | J. Murphy Jamie Murphy | MotherwellMOT | → |  Sheffield UnitedSHU | Undisclosed |
| 03 Jan 13 | R. Ibrahim Rabiu Ibrahim | CelticCEL | → | KilmarnockKIL | Free |
| 01 Jan 13 | Conor Newton | Newcastle UnitedNEW | → | St MirrenSTM | Loan |
| 01 Jan 13 | Conor Newton | Newcastle UnitedNEW | → | St MirrenSTM | Loan |