Aaron Mooy will lead Huddersfield's Premier League charge after the promoted club reportedly agreed a $16.8 million fee with Manchester City for the Socceroos midfielder.

A BBC report states the amount - a record for the Terriers - will comprise an initial payment of $A13 million, with a further $A3.3 million in add-ons. 

Mooy starred while on loan for the Terriers in the English second division last season, playing in 51 matches across the league and Cups and earning a place in the EFL Championship team of the year. 

The sum Huddersfield is willing to pay surpasses what other Premier League clubs paid for high-profile Australians Mark Viduka, Harry Kewell and Brad Smith. 

It is understood Mooy had also caught the eye of fellow promoted club Newcastle United, while West Ham was another among a number of suitors interested in the industrious midfielder.