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.
13. Ethan McGee (Linfield)
Described by Linfield manager David Healy as "one of the league's brightest young talents", 21-year-old Ethan McGee joined the Blues from Dungannon Swifts, where he racked up over 100 Irish League appearances Photo: Linfield FC
14. Conor Mitchell (Newry City)
Newry City moved to bring in Conor Mitchell, who worked with Barry Gray at Warrenpoint Town, as their new goalkeeper Photo: Brendan Monaghan Photography
15. Brandon Doyle (Newry City)
Brandon Doyle arrived at Newry City on loan from Crusaders and is another that had previously worked with Barry Gray Photo: Brendan Monaghan Photography
16. Sean Brown (Ballymena United)
Having impressed in the first-half of this season at Championship side Bangor, Northern Ireland youth international Sean Brown signed a contract extension at Larne before heading out on loan to Ballymena United until the end of this campaign Photo: Larne FC