Online Help - Accounts Screen
The accounts screen lets you view any team's current balance. In Neutral Zone all team's accounts are made public. From this screen you will be able to tell if any team is over, or near the salary cap. This proves useful when deciding which team to trade with as those nearer the salary cap may be more inclined to trade away players to ease their balance
From turn 1 to the start of regular season each team is given an extra 1.5M to spend on players and draft picks. This buffer is removed at the start of the season when you have to make your final cuts.
The salary cap is reviewed at the end of each season and either stays at it's current level or increases.