How do I get my bfs mom to stay out of my finances?

Anonymous
Me and my boyfriend live to together and I have noticed that she’s a bit on the nosey side. So last year she asked me how much I made on my income tax, that kind of bothered me because I don’t share my information with just anybody, plus it’s none of her business. (Everyone is different) I decided to be nice and just tell her but I should’ve answered differently (in a nice way of course) but then she asked me how much my sister made on her income tax and I found that to be very weird, like that’s none of her business. I don’t even know how much my sister made and she wants to know?
I noticed she does the same with her son (my boyfriend). I’m sure she does this with others as well. Since it’s her son I don’t really have a problem. I just want her to stay out of my business financially. She also asked me how much I make an hour in front of everyone and it’s like, what if im not comfortable sharing in front of everyone. It’s weird tho because I wouldn’t mind telling his sisters or his dad how much I make an hour. It’s just her. I find her to be very nosey and in everyone’s business. It does not help that my bfs aunts all gossip which is from my bfs mom side of the family. So it makes me feel like she would go and tell everyone my business. Plus her asking a million questions everytime I go does not help. So I don’t trust because I don’t need his whole family all in my business. I am a very private person, the less people know about you the better. She never asks me how work is but she is so quick to want to know my finances. I am also in school right now pursuing my degree and she doesn’t ask me how school is going, but wait till I graduate and get a new job with my degree she’s going to be quick on wanting to know how much I make.
Me in my boyfriend are considering getting a house soon and I just know she’s going to be in our business financially.
What do I do about this because i am unsure how to handle her being all in my business.
How do I get my bfs mom to stay out of my finances?
4 Opinion