Every club in the Premiership will be looking to make tweaks to their squad with Stephen Glass, Ange Postecoglou, Callum Davidson and Robbie Neilson amongst those who have been open with their desire to make additions.
The window is infamously difficult, especially for those, like St Johnstone, who are keen to do business early. Scottish clubs are aided, however, by the winter break which allows for time to bring in players and also assimilate them within the squad.
Yet, the rapid spread of the Omicron variant of Covid-19 could add an extra element of difficulty.
Looking at on-field action, there are three big Premiership matches on Wednesday with Shaun Maloney taking charge of his first match at Hibs when they host Aberdeen.
Scroll down and click through for all the latest news and transfer speculation from around the SPFL and Scottish football.
5. Cummings trains with youths
Dundee striker Jason Cummings is training with the club’s Under-18s following his appearance at Open Goal’s live event in Glasgow two days before a Premiership clash with Hearts. James McPake called the stunt “completely unacceptable”. Cummings was deemed unfit to train on the Friday having been pictured on stage dressed as the Joker. (Various) Photo: Craig Foy - SNS Group
6. Carter-Vickers on Celtic future
Celtic loan star Cameron Carter-Vickers believes it is too early to discuss whether he will stay at the club permanently after the season. The Spurs centre-back has impressed under Ange Postecoglou. He said: “I am enjoying my time up there and it is all going well. But I think like you said, I think it is a bit too early. It’s not fully down to me as well.” (talkSPORT) Photo: Craig Foy - SNS Group
7. McPake set for Carlisle move
Carlisle United are the frontrunners to land Rangers starlet Josh McPake in January. The winger is currently on loan at Morecambe but has barely featured due to injury. The Ibrox side are set to terminate the agreement with the club keen for the player to get minutes under his belt. (Daily Record) Photo: Craig Williamson - SNS Group
8. Hagi 'loves it' at Rangers
Ianis Hagi “loves it” at Rangers according to his dad Gheorghe as he played down any chance of the player leaving Ibrox in January. The Romanian star has been linked with clubs across Europe. Gheorghe said: "I'm going to Ianis (at Christmas), I can't wait to see him. He's staying with Rangers, he loves it there." (Emanuel Roşu) Photo: Alan Harvey - SNS Group