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.
9. Alex Henderson (Dungannon Swifts)
Dungannon Swifts signed goalkeeper Alex Henderson on a loan deal until the end of this season from Glentoran Photo: Dungannon Swifts
10. Ben Wylie (Cliftonville)
Former Celtic youngster Ben Wylie, who started his career with Linfield and also enjoyed a loan spell at Ballymena United, is back in the Irish League after joining Cliftonville following time in Sweden with Thomas Stewart's Ytterhogdals Photo: Cliftonville FC
11. Lido Lotefa (Glenavon)
Striker Lido Lotefa became Glenavon's seventh signing of the January window and made his debut as a substitute in their BetMcLean Cup semi-final defeat to Portadown Photo: Glenavon
12. Stewart Nixon (Crusaders)
After scoring 20 goals at Queens University while on loan from Carrick Rangers, Stewart Nixon made the move to Premiership outfit Crusaders Photo: Crusaders FC