Over £1.9bn has been spent on players - an average of almost £100m per club - and there is plenty more business expected ahead of the deadline at 11pm on Thursday.
Here, Sports Mole rounds up a conclusive list of every done deal involving top-flight clubs on deadline day, in order of most expensive to least.
Antony
To: Manchester United
From: Ajax
Fee: £82m
Age: 22
Contract length: Five years with the option of a further year
Manuel Akanji
To: Manchester City
From: Borussia Dortmund
Fee: £15.75m
Age: 27
Contract length: Five years
Wout Faes
To: Leicester City
From: Reims
Fee: £15.3m
Age: 24
Contract length: Five years
Idrissa Gueye
To: Everton
From: Paris Saint-Germain
Fee: £9m
Age: 32
Contract length: Two years
Willy Boly
To: Nottingham Forest
From: Wolverhampton Wanderers
Fee: £2.3m
Age: 31
Contract length: Two years
Oriol Romeu
To: Girona
From: Southampton
Fee: Undisclosed
Age: 30
Contract length: Three years
Luka Racic
To: SonderjyskE
From: Brentford
Fee: Undisclosed
Age: 23
Contract length: One year
Marlos Moreno
To: Troyes
From: Manchester City
Fee: Undisclosed
Age: 25
Contract length: Two years
Willian
To: Fulham
From: Unattached
Fee: Free
Age: 34
Contract length: One year
Martin Dubravka
To: Manchester United
From: Newcastle United
Fee: Loan
Age: 33
Contract length: One season
Layvin Kurzawa
To: Fulham
From: Paris Saint-Germain
Fee: Loan
Age: 29
Contract length: One season
Ethan Ampadu
To: Spezia
From: Chelsea
Fee: Loan
Age: 21
Contract length: One season
Jack Stephens
To: Bournemouth
From: Southampton
Fee: Loan
Age: 28
Contract length: One season
Paulo Gazzaniga
To: Girona
From: Fulham
Fee: Loan
Age: 30
Contract length: One season
Matty Longstaff
To: Colchester United
From: Newcastle United
Fee: Loan
Age: 22
Contract length: One season
Halil Dervisoglu
To: Burnley
From: Brentford
Fee: Loan
Age: 22
Contract length: One season
Christian Saydee
To: Shrewsbury Town
From: Bournemouth
Fee: Loan
Age: 20
Contract length: One season
Tim Iroegbunam
To: Queens Park Rangers
From: Aston Villa
Fee: Loan
Age: 19
Contract length: One season
Cagliari 
Fiorentina 
Baltika 
Lokomotiv Moscow 
CSKA Moscow 
Ural 
Orenburg 
Spartak Moscow 
Manchester Utd 
Manchester City 
Celtic 
Rangers 
Polissya Zhytomyr 
Shakhtar Donetsk 
Rukh Lviv 
Dynamo Kyiv 
Juventus 
Monza 
FC Kaiserslautern 
Bayer Leverkusen 
AC Milan 
Salernitana 
Lyon 
Paris Saint Germain 
Real Madrid 
Betis 
Real Sociedad 
Atletico Madrid 
Celta Vigo 
Valencia 
Empoli 
Roma 
Frosinone 
Udinese 
Lazio 
Sassuolo 
Napoli 
Lecce 
Verona 
Inter 
FC Porto 
Sporting CP 
Amorebieta 
Espanyol 
Sevilla 
Barcelona 
Olympiacos Piraeus 
Borussia Dortmund 
Atalanta 
Cartagena 
Gibraltar 
Scotland 
Croatia 
North Macedonia