In
| Player | Team | Date | Fee |
|---|---|---|---|
| Femi Orenuga | Southend United | 1 July 2009 | Undisclosed |
| Shkodran Mustafi | Hamburg | 1 July 2009 | Free |
| Luke Garbutt | Leeds United | 4 July 2009 | Tribunal |
| Anton Peterlin | Ventura County Fusion | 6 July 2009 | Undisclosed |
| Jô | Manchester City | 10 July 2009 | Season-long loan [recalled] |
| Cody Arnoux | Carolina Dynamo | 4 August 2009 | Undisclosed |
| Diniyar Bilyaletdinov | Lokomotiv Moscow | 25 August 2009 | £8,500,000 |
| Sylvain Distin | Portsmouth | 28 August 2009 | £5,000,000 |
| John Heitinga | Atletico Madrid | 1 September 2009 | £6,000,000 |
| Lucas Neill | Free agent | 17 September 2009 | Free |
| Landon Donovan | LA Galaxy | 2 January 2010 | 2-month loan |
| Philippe Senderos | Arsenal | 25 January 2010 | Loan to end of the season |
| Total (initial fees only): | £19,500,000 | ||
- Femi Orenuga (Southend United) – Deal agreed on 4th March 2009.
- Shkodran Mustafi (Hamburg) – Deal agreed in May 2009.
- Jô (Manchester City) – J 's loan spell was cut short in January 2010 after he did not turn up to training. He had already been suspended for visiting family in Brazil over Christmas without permission.
- Lucas Neill (Free agent) – Released by West Ham United after rejecting a one-year contract extension.
Out
| Player | Team | Date | Fee |
|---|---|---|---|
| Lars Jacobsen | Blackburn Rovers | 29 June 2009 | Free |
| Andy van der Meyde | Released | 1 July 2009 | |
| Cory Sinnott | Released | 1 July 2009 | |
| Danny Redmond | Released | 1 July 2009 | |
| John Irving | Released | 1 July 2009 | |
| John Paul Kissock | Released | 1 July 2009 | |
| Luke Powell | Released | 1 July 2009 | |
| Michael Jensen | Released | 1 July 2009 | |
| Nuno Valente | Released | 1 July 2009 | |
| Scott Spencer | Released | 1 July 2009 | |
| Tom McCready | Released | 1 July 2009 | |
| John Ruddy | Motherwell | 24 July 2009 | 6-month loan (extended to end of the season) |
| Georg Krenn | Kapfenberger SV | 19 August 2009 | Undisclosed |
| Joleon Lescott | Manchester City | 25 August 2009 | £22,000,000 |
| Lukas Jutkiewicz | Motherwell | 26 August 2009 | 5-month loan (extended to end of the season) |
| Eunan O'Kane | Coleraine | 1 September 2009 | Undisclosed |
| James Vaughan | Derby County | 18 September 2009 | 3-month loan [recalled] |
| Moses Barnett | Darlington | 12 October 2009 | 1-month loan |
| Lars Stubhaug | Stromgodset | 18 December 2009 | Undisclosed |
| Lucas Neill | Galatasaray | 14 January 2010 | £1,000,000 |
| Karl Sheppard | Galway United | 17 February 2010 | Undisclosed |
| James McCarten | Accrington Stanley | 11 March 2010 | 1-month loan |
| James Vaughan | Leicester City | 11 March 2010 | 1-month loan (extended to end of the season) |
| Seamus Coleman | Blackpool | 19 March 2010 | 1-month loan (extended to end of the season) |
| Total (initial fees only): | £23,000,000 | ||
- Andy van der Meyde (Released) – Eventually joined PSV Eindhoven on 3rd March 2010.
- Cory Sinnott (Released) – Eventually joined Ferencvaros ahead of the 2009/10 season.
- Danny Redmond (Released) – Eventually joined Wigan Athletic ahead of the 2009/10 season.
- John Irving (Released) – Eventually joined Bala Town ahead of the 2009/10 season.
- John Paul Kissock (Released) – Eventually joined Hamilton Academical on 14th August 2009.
- Luke Powell (Released) – Eventually joined Barrow in January 2010.
- Michael Jensen (Released) – Eventually studied at the University of Liverpool from 2009 to 2012 and became the goalkeeper for the university's men's football team.
- Nuno Valente (Released) – Eventually retired and became Everton's scout in Portugal.
- Scott Spencer (Released) – Eventually joined Rochdale on 14th August 2009.
- Tom McCready (Released) – Eventually joined Hibernian on 12th July 2009.
- James Vaughan (Derby County) – James Vaughan's loan spell was cut short due to injury.
| Income | £23,000,000 |
| Expenditure | £19,500,000 |
| Net Spend | -£3,500,000 |