- Your main worry should be that IF you are american and your husband is swiss: then having anything jointly (even power of attorney on an account) it means that HE (the Swiss) must start sending FBAR forms to the IRS or he may face penalties (incl IRS fines a % of the account balance!). For this reason most people in your case, they go out of their way to ensure their financial affairs are totally seperate.
- Opening a joint account is possible, but one cannot simply "add a name to the account". A new account will be opened with a different number, and the old one closed if desired.
- UBS charge per customer. So if you are adding a new person then they will want to receive 2x the montly charges. Which is why the "family" package is cheaper (1.5x the monthly charges). But if both people are already UBS customers (so already paying monthy fees seperately) the joint account is free.
- If you dont want a joint account, but one person to be able to access the other's account, you have 2 options :
-- fill in a mandate at the bank. This is not a power of attorney in the legal aspect, but an authorization to the bank so that they accept instructions from the other person. It's free, but it only works for instructions to the bank in persion. I.e., they won't create an online ebanking for the other person (unless of course the other person is already a customer on their own). Also if the account holder dies, it is automatically canceled.
-- do a proper power of attorney. Generally you have to go to a notary, and pay. There are various levels of power of attorney, some continuing after death. The poa are more general, ie wider than banking, so need to be careful. But even if you have a poa which continues after death , if the bank account owner dies you cannot use it as the account is closed. So basically, the poa continues after death, but the bank account doesn't. They will close the account, the poa doesn't prevent this.
- If you have a joint account and one dies, the bank will remove the name and the account continues with the remaining names. (It will be "blocked" in the sense that you must visit the bank and remove the name of the deceased, once the bank finds out that is, but then it will get "unblocked" as soon as you do that.) The only advantage is that the account number doesn't have to change, if that's important.
- Note that probably none of the solutions above (not even a joint account) protects you from inheritance fights - in all situations the bank can block or restrict access until it is determined who should get the money. Some options make it easier for you to "take" the money, but just because the bank allowed you to access the $, doesn't mean it's legally yours .
- Named accounts don't offer any advantage for personal or joint accounts in the event of death. They are not "nameless", just that the name is hidden and only the branch manager can see it.