Adding a savings account to the Amex app takes three steps: open the app, go to Wallet or Accounts, and select Add Bank Account
The American Express mobile app lets you connect an external savings account so you can transfer money between your Amex card and that account without leaving the app. The process is straightforward and takes about five minutes if you have your bank routing and account numbers ready. Amex uses Plaid, a third-party service, to verify your account — you log in to your bank through Plaid's interface, and Amex confirms the connection is real.
Once linked, you can move money from your Amex card to your savings account or vice versa. The transfer speed depends on your bank — most take one to three business days, though some banks offer next-day transfers. You can link multiple savings accounts if you want to split transfers across different banks.
Key Takeaways
- Open the Amex app, tap Wallet or Accounts, and select Add Bank Account to start the linking process.
- Amex uses Plaid to verify your savings account, so you will log in to your bank through Plaid's secure interface.
- Transfers between your Amex card and linked savings account usually take one to three business days.
- You can link multiple savings accounts and choose which one to transfer to each time you move money.
Step-by-step: linking your savings account in the app
Start by opening the American Express mobile app on your phone. Tap the menu icon (three horizontal lines) in the bottom right corner, then look for Wallet, Accounts, or Transfer Funds — the exact label varies depending on your card type and whether you have a checking or savings product with Amex.
Select Add Bank Account or Link External Account. The app will ask you to choose your bank from a list or search for it by name. Type your bank's name and select it from the results. Amex will then redirect you to Plaid, which handles the secure connection to your bank.
Log in to your savings account through Plaid using your online banking username and password. Plaid does not store your password — it only uses it to confirm you own the account. Once you log in, Plaid shows Amex a list of accounts under your name. Select the savings account you want to link, then confirm the connection. You will be sent back to the Amex app, and the account should appear in your linked accounts list within seconds.
What information you need before you start
Have your online banking login ready — username and password for the savings account you want to link. If you have not set up online banking for that account yet, you will need to do that through your bank's website or app first. Amex cannot link accounts that do not have active online access.
You do not need your routing number or account number for the app linking process — Plaid pulls those automatically when you log in. However, if the app linking fails, you can usually add the account manually by entering those numbers yourself. Your routing number is a nine-digit code your bank provides, and your account number appears on the bottom left of your checks or in your online banking portal.
How long transfers take and when money arrives
Transfers from your Amex card to a linked savings account typically take one to three business days. The exact timing depends on your bank's processing speed, not Amex. Some banks, particularly larger ones, offer next-day transfers if you initiate the move before their daily cutoff time — usually 5 p.m. Eastern Time.
Transfers initiated on weekends or holidays are queued and process on the next business day. If you transfer money on Friday evening, expect it to arrive in your savings account on Monday or Tuesday. Amex does not charge a fee for transfers between your card and a linked savings account.
Unlinking or removing a savings account
If you want to stop using a linked savings account, go back to Wallet or Accounts in the app, find the account in your linked list, and select Remove or Unlink. The account is disconnected immediately, and you will no longer see it as an option when you initiate a transfer. Removing a linked account does not affect your savings account itself — the money stays there, and your bank account remains active.
If you need to change which savings account you transfer to, you do not have to remove the old one. You can link as many accounts as you want and choose a different destination each time you move money. This is useful if you have savings accounts at multiple banks and want to consolidate or split transfers.
Troubleshooting: what to do if linking fails
If Plaid cannot log in to your bank, the most common cause is an incorrect password or a bank that requires additional security steps (like a security code sent to your phone). Try logging into your bank's website or app directly to confirm your password works. If your bank uses two-factor authentication, you may need to complete that step during the Plaid login.
If your bank is not appearing in Plaid's list, search for it by the full legal name rather than a nickname — for example, search "Wells Fargo Bank" instead of just "Wells Fargo." If it still does not appear, your bank may not support Plaid connections. In that case, return to the Amex app and look for a Manual Entry or Enter Account Details option, where you can type in your routing and account numbers directly.
If a transfer gets stuck or does not arrive after four business days, contact Amex customer service through the app or by phone. They can check the status on their end and confirm whether the transfer was sent to your bank. If your bank received it but has not posted it, your bank's customer service can investigate the delay on their side.
Security: how Amex protects your linked account
Amex does not see or store your bank password. Plaid handles the login and only shares confirmation that the account belongs to you. The connection between your Amex card and savings account is encrypted, and Amex can only move money you authorize — they cannot withdraw funds without your explicit request through the app.
If your Amex app is protected by a PIN, fingerprint, or face recognition, that same security applies to transfers. If someone gains access to your phone and your app is unlocked, they could initiate a transfer, so keep your device locked and your app password strong. If you suspect unauthorized access, remove the linked account immediately and contact Amex.
Frequently Asked Questions
Can I link a savings account from a different bank than my Amex card?
Yes. Your Amex card and savings account can be at completely different banks. Amex will transfer money between them using the ACH network, which connects banks across the country. This is how most people use the feature — to move money from their Amex card to a savings account at their primary bank.
What if my bank is not showing up in the Plaid list?
Search for your bank using its full legal name — many banks have multiple names in the system. If it still does not appear, your bank may not support Plaid. Look for a Manual Entry option in the Amex app where you can enter your routing and account numbers directly instead of logging in through Plaid.
Can I transfer money from my savings account to my Amex card to pay a balance?
Yes. Once your savings account is linked, you can initiate transfers in both directions. You can move money from savings to your Amex card to pay down a balance, though the transfer still takes one to three business days. Some people use this to automate payments, though setting up autopay through your Amex account is usually faster.
Is there a limit to how much I can transfer?
Amex does not publish a specific transfer limit in the app, but your bank may have daily or monthly limits on ACH transfers. Check your bank's transfer policies or contact them directly. If you try to transfer more than your bank allows, the transfer will be rejected and the money will stay in your original account.
What happens if I delete the Amex app — does the linked account stay connected?
No. Deleting the app removes the link. When you reinstall the app and log back in, you will need to re-link your savings account using the same process. Your bank account itself is not affected — only the connection within the Amex app is removed.