The winter transfer window is open from 1 January to 31 January in England and Scotland.
Germany's follows the same dates, Spain's opens on 2 January and Italy's runs from 3-18 January.
EFL clubs can still sign free agents as long as they left their previous club before the end of the summer window in August.
- More signings: June - July - August - September to December
- Managerial ins and outs
For all the latest transfer rumours check out today's gossip column.
4 January
English Football League
Benik Afobe [Wolves - Stoke] Undisclosed
Ben Barclay [Brighton - Notts County] Loan
Ben Brereton [Nottingham Forest - Blackburn] £7m
Canice Carroll [Brentford - Swindon] Loan
Conor Chaplin [Portsmouth - Coventry] Permanent
Ben House [Reading - Swindon] Loan
Will Keane [Hull - Ipswich] Loan
Harrison McGahey [Rochdale - Scunthorpe] Undisclosed
Paul McKay [Cardiff - Morecambe] Loan
Alex Pearce [Derby - Millwall] Loan
Aaron Ramsdale [Bournemouth - AFC Wimbledon] Loan
Byron Webster [Millwall - Scunthorpe] Free
Jonny Williams [Crystal Palace - Charlton] Undisclosed
Ryan Woods [Brentford - Stoke] Undisclosed
Women's Super League
Ann-Katrin Berger [Birmingham City Women - Chelsea Women] Free
3 January
English Football League
Tom Bradshaw [Barnsley - Millwall] Undisclosed
Dylan Connolly [Dundalk - AFC Wimbledon] Undisclosed
Janoi Donacien [Accrington - Ipswich] Undisclosed
Adam Hammill [St Mirren - Scunthorpe] Free
Rory Holden [Bristol City - Rochdale] Loan
Daniel Lafferty [Sheffield United - Peterborough] Loan
Aaron Lewis [Swansea - Doncaster] Loan
Shawn McCoulsky [Bristol City - Forest Green] Undisclosed
Tony McMahon [Oxford United - Scunthorpe] Loan
Brad Potts [Barnsley - Preston] Undisclosed
Cameron Pring [Bristol City - Cheltenham] Loan
Jayden Stockley [Exeter - Preston] £750,000
Ben White [Brighton - Peterborough] Loan
Cauley Woodrow [Fulham - Barnsley] Undisclosed
International
Martin Braithwaite [Middlesbrough - Leganes] Loan
Pelle Clement [Reading - PEC Zwolle] Undisclosed
Women's Super League
Jade Bailey [Chelsea Women - Reading Women] Loan
2 January
Premier League
Christian Pulisic [Borussia Dortmund - Chelsea] £58m
English Football League
Ryan Bowman [Motherwell - Exeter] Undisclosed
Andy Cannon [Rochdale - Portsmouth] Undisclosed
Callum Elder [Leicester - Ipswich] Loan
Omar Mussa [KV Mechelen - Walsall] Undisclosed
Max Power [Wigan - Sunderland] Undisclosed
Mark Sykes [Glenavon - Oxford United] Undisclosed
Kevin van Veen [Northampton - Scunthorpe] Undisclosed
Women's Super League
Katrine Veje [Montpellier - Arsenal] Undisclosed
1 January
Premier League
Jaden Brown [Tottenham - Huddersfield] Free
David Wang [Jumilla B - Wolves] Undisclosed
English Football League
Ricky German [Hendon - Crawley] Undisclosed
Josh Ginnelly [Walsall - Preston] Undisclosed
Matt Jarvis [Norwich - Walsall] Loan
International
David Wang [Wolves - Sporting Lisbon] Loan