Finance in IT deals with how the IT Function is funded, what the sources and levels of funding are, how funding decisions are made, how the IT budget is managed, Total cost of ownership and most importantly commercial and economic accountability for financial outcomes as a result of Finance.

Take a Quick Maturity and Posture Assessment here

IT posture is the sum of the attitude that an organisation has towards their IT function, and self-image that IT has of itself within that organisation. The result affects the role that IT plays (and can play) in the business – both positive and negative. It goes without saying that posture dramatically affects IT value perceptions (and realities).
 
This is not the full assessment, which is normally done as a workshop but this will give you a sense of some of the considerations.