City were charged and referred to an independent commission in February 2023 following a four-year investigation.
It is alleged City breached the Premier League’s financial rules between 2009 and 2018. City strongly deny all charges.
The private hearing took place between September and December.
Norway striker Haaland has scored 112 goals in 127 games for City since joining from Borussia Dortmund in 2022.
It is understood clauses that existed in Haaland’s initial contract, which had been set to expire in 2027, have now been removed.
There have been reports of a break clause being inserted that takes effect in 2029, although that has not been confirmed by City or the player’s representatives.
Haaland’s deal is the longest in the Premier League, eclipsing the nine-year deal Cole Palmer signed with Chelsea last August.
“It is a really good sign,” added Haaland. “Of course it is a bit unusual, it is not normal and that is also something I like.
“It felt good for both parties and in the end it was an easy choice.”
Manchester City face Paris St-Germain in a crucial Champions League group stage match at Parc des Princes on Wednesday.
