Telling my husband"No" is this right or wrong

Ok so I feel that my husband has some control issues, and I'm trying to stand up for myself and set boundaries. First off I work and so does my husband he does make more money then me but we both bring something to the table. So the other day he demanded to see my bank account information. Mind you I don't have his nor do I have access to his account. I felt that this was attempt to control me like a child. So I said no. He got upset and like a child he told me I was on punishment which means anything he promised me he not going to do it. I don't know if I should just show him so he won't be upset or keep it private allowing me to have some form of independence and dignity