Talk with your bank...sure, you can go in (the two of you) and talk with the bank manager and sign a card and that's all there is to it, done.
It's a mistake though to both be on one account. If there was theft by her then you're screwed, but if there is theft in the account by a stranger then neither you nor your fiancee will have any money to work with so both of you would be screwed.
You both need to learn to manage your own money, pay your fair share of the bills, etc. But if one has a credit card and goes into judgment status then they might try to put a lien on that one account and you'd be screwed. Ya just have to learn to trust her and let her go ahead and have her own account. You can look over the statement, if she lets you, she receives each month if you're curious about what she spends money on.
If you're afraid that say you're in an accident and can't get to your money then she can help you out with her money, or there's a way the bank can note the account that if you're incapacitated she can get money out for you. But easier yet, why don't you get a credit card in your name only?
And, learn to trust her. Seems you have a problem with trust.
Most banks would allow joint names on an account. No problem. Just go in and ask.
However remember that if it doesn't work out between you, or if she's a spendthrift and drains your account, or she decides to close the account and leave you're going to be stuck up a creek with no way to recoup that money.
Most people I know have an account in their own name, and a joint one that's separate that the household bills are paid out of. It's not about 'trust', it's about letting you feel secure in what happens to YOUR hard earned money.
I suggest you keep separate accounts (even if in the same bank) until you are legally wed.
Ask your bank. I think you can.
probably. Talk to someone at your bank.
sure, but she has to sign onto it. The bank needs to have a record of her signature.
Sure. You can open a joint account whereby (either) or
(both) of you have to be present and show ID.
Or you can just leave it in your name and she can
deposit money into your account for you.
Wouldn't it make more sense to ask your bank?