It is everyone's right, to have their own money and accounts.
Even a child can have their own account, why not a wife.
You could get a p.o.box, for your "secret" mail/bank statements to go to. But then you would have to retrieve your mail and then bring it home... then where would you file it, and where would you put it at home?
Only accounts (checking or savings etc.) that earn interest, are taxed.
Unless your Husband has a problem with you having your own money or account... I don't think its a situation where you have to "hide" your own money.
Sure, you can have an account in only your name. Why not? That is what millions of people do everyday, whether married or single. You don't have to have a secondary name on the account, unless they will be responsible for the account as well or need access to it. But, you can name a "beneficiary" for the account.
Just because someone is a SAHM... it does not mean that they are not able to have any money or accounts for themselves. It does not mean that they have to 'give up' their own financial accounts or savings or their own spending money or be broke themselves.
Didn't you have any accounts, for yourself, while you were still single and not married yet? Did you keep any of those accounts? Didn't you have any credit cards while still single prior to getting married?
And yes, it is GOOD that you are thinking that you need some emergency money that is your own. And your Husband should have some saved as well.
Ultimately, you should be able to tell your Husband your needs and wishes. You don't have to ask "permission." You are an adult. You are entitled to have your own money and checking or savings accounts. It is nothing to hide or feel secretive about. Unless, your Husband is the type of man that does not believe in a woman being independent?
All the best,
Susan