You can link a high-yield savings account to your American Express app in three steps
Open the Amex app on your phone or go to americanexpress.com on a browser. Tap or click the menu icon (three horizontal lines), then select "Accounts" or "Banking" depending on which Amex product you use. Look for an option to "Add Account" or "Link Account"—the exact wording varies by app version. You will need your savings account number and routing number, which you can find on a check, your bank's website, or by calling the bank directly.
The app will ask you to verify the account by one of two methods: instant verification through your bank's login, or micro-deposits. Instant verification is faster—you sign in with your savings bank's credentials right there in the Amex app, and the connection happens in minutes. Micro-deposits take longer: Amex deposits two small amounts (usually under $1 each) into your savings account over one to two business days, and you confirm the exact amounts in the app to prove you own the account.
Once verified, the account appears in your Amex app and you can view the balance, transfer money between accounts, and set up automatic transfers. The linked account does not replace your Amex checking or money market account—it sits alongside them so you can move money where you need it.
Key Takeaways
- You need your savings account number and routing number before you start, which appear on a check or your bank's website.
- Instant verification through your bank's login is the fastest method and completes in minutes; micro-deposits take one to two business days.
- A linked savings account appears in your Amex app alongside any other accounts you hold and lets you transfer money between them.
- The app will show your savings balance and interest earned, and you can set up automatic transfers to move money on a schedule.
What happens after you link the account
Once the account is verified and linked, the Amex app displays it in your account list. You can see the current balance, the interest rate, and how much interest you have earned so far that month or year—the display depends on your specific savings product. The app also shows transaction history if you have made transfers or withdrawals.
You can now transfer money from your Amex checking or money market account into the linked savings account, or move money out of savings back into checking. These transfers usually post the same business day if you initiate them before the daily cutoff time (typically 5 p.m. Eastern), or the next business day if you transfer after hours or on a weekend. The Amex app will tell you the expected arrival date before you confirm the transfer.
If you want to move money between the linked savings account and an external bank account (one that is not an Amex product), you will need to set up that external account separately in the app. The process is the same: provide the account number and routing number, then verify through instant login or micro-deposits.
Unlinking or removing a savings account
To remove a linked account from your Amex app, open the app and navigate to the account settings or account list. Find the savings account you want to remove and look for a "Delete," "Remove," or "Unlink" option—it is usually in a menu accessed by tapping or clicking on the account name. The app will ask you to confirm the removal.
Unlinking an account from the app does not close the account itself or affect any money in it. The account continues to exist at your savings bank and earns interest as usual. You simply lose the ability to view it or transfer money to and from it through the Amex app. If you want to re-link it later, you can go through the same process again.
Troubleshooting a failed link or verification
If instant verification fails, the app usually tells you why: your bank's login credentials were incorrect, your bank does not support instant verification, or there is a temporary connection problem. Try signing in again with your savings bank's username and password. If the problem persists, switch to the micro-deposit method instead—this works with nearly all banks and does not require you to share your login credentials with Amex.
If micro-deposits do not arrive after two business days, contact your savings bank to confirm the account is active and not flagged for fraud. Then contact Amex customer service through the app or by phone to let them know the deposits have not posted. Amex can resend the deposits or cancel the verification attempt and let you try again.
If you see an error message like "Account not found" or "Routing number invalid," double-check that you entered the correct routing number for your bank. Routing numbers vary by branch and by region, so verify it on your bank's website or a check before trying again. If the number is correct and the error persists, your bank may not be in Amex's system yet—call Amex support to see if they can add it manually or suggest an alternative.
Security and fraud protection when linking accounts
Amex uses encryption to protect your account information when you link a savings account through the app. If you use instant verification, you are signing in directly with your bank—Amex does not store your bank login credentials. If you use micro-deposits, Amex only sees the small amounts it deposits and the amounts you confirm, not your full account details.
Once linked, transfers between your Amex accounts and the linked savings account are protected by the same fraud monitoring that covers your Amex checking account. If you notice an unauthorized transfer, report it to Amex immediately through the app or by calling the number on the back of your card. Amex will investigate and may reverse the transfer if fraud is confirmed.
If your phone is lost or stolen, anyone with access to your unlocked Amex app could potentially transfer money out of your accounts. Protect yourself by enabling biometric login (fingerprint or face recognition) in the app settings, or by setting a PIN that is required before any transfer. You can also remove the linked account from the app remotely by logging in from another device and unlinking it.
Transfer limits and timing
Amex does not publish a single transfer limit that applies to all customers—limits vary based on your account history, account type, and the amount of money you hold. When you initiate a transfer in the app, it will show you the maximum amount you can move. If you need to transfer more than the limit allows, you can make multiple transfers or contact Amex to request a temporary increase.
Transfers between Amex accounts (checking to savings, for example) usually post the same business day. Transfers from a linked Amex savings account to an external bank account take one to three business days depending on the receiving bank. Transfers into your Amex savings account from an external bank can take up to five business days. The app displays the expected arrival date before you confirm, so you know when to expect the money.
Frequently Asked Questions
Can I link a savings account from a different bank to my Amex app?
Yes. You can link a savings account from any bank, as long as you have the account number and routing number. The process is the same as linking an Amex savings account: provide the details, verify through instant login or micro-deposits, and the account appears in your app. Transfers to and from external accounts may take longer than transfers between Amex products.
What if my savings bank does not support instant verification?
Use the micro-deposit method instead. Amex will deposit two small amounts into your account over one to two business days, and you confirm the exact amounts in the app. This works with nearly all banks and does not require you to share your login credentials. It takes longer but is just as secure.
Do I need a separate Amex savings account to link one in the app?
No. You can link a high-yield savings account from any bank—Amex or otherwise. If you do not have an Amex savings account yet and want one, you can open it through the app or website. Linking is optional; you can use the app to manage only your Amex checking account if you prefer.
Can I set up automatic transfers between my Amex account and a linked savings account?
Yes. In the app, look for "Recurring Transfers" or "Automatic Transfers" in the account settings. You can set up a transfer to happen weekly, biweekly, monthly, or on a custom schedule. The app will confirm the amount and frequency before the first transfer posts.
What happens to my linked account if I close my Amex checking account?
Closing your Amex checking account does not automatically unlink your savings account from the app. However, you may lose access to the app itself if your Amex checking account was your primary account. Contact Amex before closing to understand how it affects your ability to view and transfer money through the app.