The Assembly of Muslim Jurists of America responds to the question: Is it permissible for a wife to spend her own money without her husband`s knowledge?

Fatwa, posted 4.22.2010, from United States, in:
Religious Authority: 
Muhammad al-Ghaylany
Fatwa Question or Essay Title: 
Is it permissible for a wife to spend her own money without her husband`s knowledge?

Yes, it is permissible for her to do that, because she has her own financial obligation and liability. Whatever she earns by herself or inherits from her family is her own money, and she has the full legal right to do whatever she likes with it as long as this would be within what Islam has made it permissible to her.