You cannot add another person to an existing American Express High Yield Savings account, but you can open a joint account together from the start

American Express Bank does not allow you to convert a single-owner savings account into a joint account after it has been opened. If you want a second person to have ownership rights and access to the account, you will need to close the existing account and open a new joint account together. Both account holders must be present (or complete the process together online) during the initial setup.

If the other person only needs to view balances or make transfers on your behalf without owning the account, American Express offers a different option called authorized user status, though this is less common for savings accounts than for credit products. Check with American Express directly about what permissions an authorized user would have on a savings account, as this varies.

Key Takeaways

  • American Express High Yield Savings accounts cannot be changed from individual to joint ownership after opening.
  • To create a joint account, both people must open a new account together; the original account will need to be closed.
  • You will need the other person's Social Security number, date of birth, and address to add them as a joint owner.
  • Funds in the original account can be transferred to the new joint account, but the old account must be closed separately.
  • Contact American Express at 1-800-221-7282 or through your online banking portal to discuss your options before closing any account.

What you need to open a joint account

Both account holders must provide personal identification information during the account opening process. American Express will ask for each person's full legal name, Social Security number, date of birth, and current address. You will also need a valid government-issued photo ID for each person, such as a driver's license or passport.

The account opening happens online or by phone. If you choose the online route, both people typically log in together or complete their portions of the process in sequence. American Express will verify the information against credit bureaus and other databases before the account becomes active.

Steps to close your current account and move to a joint account

First, contact American Express to confirm the current balance and any pending transactions. You can reach them at 1-800-221-7282 or through your online banking portal. Ask them to walk you through the joint account opening process and what happens to your existing funds.

Once the new joint account is open and active, you can transfer your balance from the old account to the new one. American Express can often do this internally, or you can initiate an external transfer. After the funds have moved and you have confirmed the balance is correct, request that American Express close the original account. Do not close it until you are certain all your money has reached the new account.

Keep records of the transfer confirmation and the account closure confirmation. These documents protect you if there is ever a question about what happened to your funds.

How ownership and access work on a joint account

On a joint American Express High Yield Savings account, both owners have equal rights to the full balance. Either person can withdraw money, make transfers, or close the account without the other person's permission. There is no way to restrict one owner's access or require both signatures for transactions.

This means you should only open a joint account with someone you trust completely. If you want more control over who can do what with the money, a joint account is not the right structure. In that case, you might consider keeping your account separate and naming the other person as a beneficiary instead, though that only gives them access after your death.

What happens if one owner wants out

If one joint owner wants to leave the account, the account must be closed. The balance is then divided according to what the owners agree on, or according to state law if they cannot agree. There is no way to convert a joint account back to single ownership while keeping it open at American Express.

If you and the other owner disagree about the money, contact American Express when ready. They can freeze the account pending a court order, but they will not make decisions about who owns what portion. That information has to come from you, the other owner, or a court.

Alternatives if you do not want to close your current account

If you want to keep your existing account open and separate, you can name the other person as a beneficiary instead. A beneficiary has no access to the account while you are alive, but automatically inherits the full balance when you pass away. This requires no changes to the account itself and no involvement from the other person during setup.

You can also keep your account as it is and straightforward give the other person your login credentials if you want them to view the balance or help manage it. This is not a formal arrangement and offers no legal protection, but it does let someone else see what is in the account without opening a new one.

Another option is to open a separate joint account with the other person while keeping your current account open. You would then have two accounts—one individual and one joint—and could move money between them as needed. This gives you more control over which funds are jointly owned and which remain yours alone.

Frequently Asked Questions

Can I add someone to my account without closing it?

No. American Express does not allow you to add a joint owner to an existing account. The only way to have a joint account is to open a new one together from the beginning. Your current account must be closed if you want to switch to joint ownership.

What if I just want someone to help me manage the account?

You can share your login information with them, though this is not a formal arrangement. If you want a more official structure, ask American Express whether they offer authorized user status on savings accounts, which would give someone limited access without full ownership rights.

Can I remove the other person from a joint account later?

No. Once a joint account is open, the only way to remove someone is to close the account entirely. Both owners must agree to the closure, or one owner can close it unilaterally, but the account itself cannot stay open with just one owner.

What if the other person dies?

The surviving owner retains full access to the account and all funds in it. The deceased owner's estate has no claim to the money because joint accounts pass automatically to the surviving owner outside of probate. Make sure you understand this before opening a joint account.

Does opening a joint account affect either person's credit score?

Opening a savings account does not affect credit scores. American Express may do a soft credit inquiry to verify identity, but this does not show up on your credit report or lower your score. A hard inquiry is not typical for savings accounts.