It can be hard to keep track of all the activity during what is a manic month, so that’s where we come in!
Keep up to date with all the business being done by each of the 12 Premiership clubs throughout January below.
21. Jamie Robinson (Ballymena United)
Former Chesterfield defender Jamie Robinson has joined Ballymena United on loan for the rest of this season from Cliftonville Photo: Ballymena United
22. Donal Rocks (Ballymena United)
After spending the first-half of this season on loan at Ballymena United from Cliftonville, Donal Rocks has joined the Sky Blues on a permanent deal Photo: INPHO/Stephen Hamilton
23. Aidan McAdams (Larne)
With goalkeeper Aidan Dowling moving to Cork City, Larne moved quickly to replace him with Scottish stopper Aidan McAdams joining until the end of the season after leaving Edinburgh City Photo: Larne FC
24. Andrew Mitchell (Dungannon Swifts)
Andrew Mitchell enjoyed the best goalscoring form of his career to date during a spell at Dungannon Swifts between 2014-2017 and his return to Stangmore Park from Coleraine for an undisclosed fee has been confirmed Photo: John McVitty/Presseye