City missed out on signing a replacement for Vincent Kompany in the summer but Guardiola insists they will not splash the cash when the January transfer window opens.
"I don't want any players in January," Guardiola told a news conference ahead of the trip to Burnley on Tuesday.
"I don't want any players. If we cannot do it in summer, we cannot do in January.
"Normally the players we could think it would be interesting to add something for our squad they are not going to sell it."
City were keen on Harry Maguire in the summer before the England defender made the switch from Leicester to Manchester United and they are likely to attempt to sign a new centre-back next summer.