The basic ruling is that the wife is not responsible for spending at her marital home, rather this responsibility rests on the husband. However, if the wife works, and additional expenses are incurred by her work, these expenses will be taking care of by the woman.

However, some scholars mentioned that if the house needs a house help as a result of the wife’s job, the woman must contribute in the payments of the help’s salary/ wages. 

It is better for a (salary earning working class) woman to bear with her husband on the additional burdens (expenses) that resulted from her work. This is established to make justice in Islam.