The Scottish summer transfer window has closed with Celtic having recruited seven players on a permanent basis.

After a slow start, the window hit fever pitch on deadline day as Brendan Rodgers and his squad now preparing for a busy stretch of football – including Sunday's Scottish Premiership derby with Rangers, and the beginning of the new format UEFA Champions League not long after that again.

Before then, with the summer transfer window now behind us, here are Celtic's top 10 most expensive signings of all time.

10. Rafael Scheidt – £4.8m

Year signed: 1999 
Bought from: Gremio
Left for: Atletico Mineiro (2002; two years on loan at Corinthians 2000-2002)

9. Jozo Simunovic – £5m 

Year signed: 2015
Bought from: Dinamo Zagreb
Left for: Free agent; joined HNK Gorica in October 2021

Albian Ajeti – £5m  

Year signed: 2020
Bought from: West Ham United
Left for: Gaziantep (2023; on loan at Sturm Graz 2022/23)

8. Neil Lennon – £5.75m 

Year signed: 2000
Bought from: Leicester City
Left for: Nottingham Forest (2007)

Eyal Berkovic – £5.75m

Year signed: 1999
Bought from: West Ham United
Left for: Manchester City (2001; on loan at Blackburn Rovers earlier same year)

7. Cameron Carter-Vickers – £5.95m

Year signed: 2022 (season on loan in 2021)
Bought from: Tottenham Hotspur
Left for: N/A

6. Auston Trusty – £6m  

(Image: PA)

Year signed: 2024
Bought from: Sheffield United
Left for: N/A

Chris Sutton – £6m

(Image: SNS)

Year signed: 2000
Bought from: Chelsea
Left for: Birmingham City (2006)

John Hartson – £6m

(Image: SNS)

Year signed: 2001
Bought from: Coventry City
Left for: West Bromwich Albion (2006)

5. Jota – £6.5m

(Image: SNS)

Year signed: 2022 (season on loan in 2021)
Bought from: Benfica
Left for: Al-Ittihad (2023)

4. Christopher Jullien – £7m 

(Image: SNS)

Year signed: 2019
Bought from: Toulouse
Left for: Montpellier (2022)

3. Adam Idah – £8.5 


Year signed: 2024 (half season on loan in January same year)
Bought from: Norwich City
Left for: N/A

2. Odsonne Edouard – £9m 


Year signed: 2018 (season on loan in 2017)
Bought from: Paris Saint-Germain
Left for: Crystal Palace (2021)

1. Arne Engels – £11m 


Year signed: 2024
Bought from: Augsburg 
Left for: N/A