The Manchester United legend and Sky Sports pundit took to Twitter to vent his frustrations at the current system in place.
With the window in England set to slam shut at 6pm today, the Sky Sports pundit and Manchester United stalwart believes a review is required.
Neville made the claims via Twitter, as the media frenzy surrounding the final few hours of the window began to kick into overdrive.
Football authorities have to stop the circus that the transfer windows have become. Transfer system needs complete overhaul! Good morning— Gary Neville (@GNev2) September 1, 2015
Describing the current furore as a “circus”, the Red Devils legend went on to suggest that a “complete overhaul” is required.
The comments come in the wake of a busy few days for his former club.
French youngster Anthony Martial has already arrived from AS Monaco for a substantial, though as yet unspecified, fee.
Meanwhile, David De Gea's long-awaited move to Real Madrid collapsed after the clubs failed to agree a deal before the close of the Spanish transfer window.
There could yet be more news to come from Old Trafford, with several other big names linked with a move to Manchester United before the deadline passes.