Log in to Wells Fargo Online and open the account linking page

Start by going to wellsfargo.com and signing into your existing Wells Fargo account with your username and password. Once you are logged in, look for the menu option labeled "Accounts" or "Add Account" — the exact wording varies depending on whether you are using the website or the mobile app, but both have this option in the main navigation.

On the website, this is usually in the top menu bar. On the mobile app, tap the menu icon (three horizontal lines) and scroll to find "Add Account" or "Link Account". The page that opens will show you options for adding a new account to your online banking profile.

Choose whether you are adding an existing Wells Fargo account or a different bank

Wells Fargo distinguishes between two scenarios: adding a checking account you already own at Wells Fargo but have not yet linked to your online profile, and adding a checking account from a different bank entirely.

If the checking account is already a Wells Fargo account, select the option for "Link an existing Wells Fargo account". You will need your account number and routing number, both of which appear on your checks or statements. If the checking account is at another bank, select "Add an external account" or "Link account from another bank" — the exact phrase depends on your interface version.

Key Takeaways

  • You must be logged into your Wells Fargo online banking profile before you can add or link any account.
  • Wells Fargo accounts you already own can be linked immediately if you have your account number and routing number.
  • External accounts from other banks require verification, which typically takes one to three business days.
  • You will need either your account and routing numbers or your online banking login for the other bank to complete the linking process.

Provide your account details or connect through your other bank

For a Wells Fargo account, enter your account number and routing number. Your routing number is always 121000248 if you are in the continental United States; Wells Fargo uses different routing numbers for some territories, but the website will tell you which one applies to your account.

For an external account at another bank, you have two options. The first is to enter the account number and routing number directly. The second is to sign in to your other bank's online banking through Wells Fargo's system — this is sometimes called "OAuth" or "secure sign-in". The second method is faster and more accurate because it pulls your information directly from your other bank rather than relying on you to type it correctly.

Verify the account through microdeposits or instant verification

If you added an external account, Wells Fargo will verify that you own it. The method depends on the bank and the account type. The most common method is microdeposits: Wells Fargo deposits two small amounts (usually between 1 and 25 cents each) into the external account. You then log back into Wells Fargo online banking and enter the exact amounts you see in your other bank's statement. This confirms you have access to that account.

Microdeposits typically arrive within one to three business days. Some banks and account types may have access to for instant verification, which confirms the account immediately without waiting for deposits. Wells Fargo will tell you which method applies as soon as you enter the account details.

Once verification is complete, the account appears in your Wells Fargo online banking profile and you can use it for transfers, bill pay, and other linked-account features.

Set up transfers and permissions after linking

After the account is linked, you can configure how you want to use it. In your Wells Fargo online banking profile, you can set up automatic transfers between accounts, use the linked account for bill pay, or simply monitor it alongside your Wells Fargo accounts in one place.

You can also set transfer limits or restrict which accounts can send money to the linked account. These settings are found in the "Preferences" or "Account Settings" section of your profile, usually under "Linked Accounts" or "External Accounts".

Troubleshooting if the account will not link

If you see an error message when trying to link an account, the most common causes are a typo in the account or routing number, an account that is not in your name, or a bank that does not support external linking through Wells Fargo. Double-check the account and routing numbers against your checks or your other bank's website.

If the account is in a different name — for example, a joint account where you are not the primary holder — Wells Fargo may not allow you to link it through online banking. In that case, you can call Wells Fargo customer service at 1-800-869-3557 to discuss other options, or you can transfer money between the accounts manually using ACH or wire transfer instead of linking them.

If microdeposits fail to arrive after five business days, contact your other bank to confirm the account is active and can receive deposits. Some accounts, particularly savings accounts or money market accounts, have restrictions on incoming transfers that can block microdeposits.

Frequently Asked Questions

How long does it take to link an external checking account?

Linking a Wells Fargo account to your profile is immediate. Linking an external account takes one to three business days if you use microdeposits for verification, or a few minutes if your bank supports instant verification. Wells Fargo will show you which method applies when you enter the account details.

Can I link a checking account that is not in my name?

Wells Fargo requires the account to be in your name or a name on your Wells Fargo profile. Joint accounts where you are listed as an owner can usually be linked, but accounts owned entirely by someone else cannot. Call 1-800-869-3557 if you are unsure whether your account qualifies.

What if I do not know my routing number?

Your routing number appears on the bottom left of your checks. You can also find it on your bank's website or by calling your bank's customer service line. For Wells Fargo accounts, the routing number is 121000248 in most of the continental United States.

Do I need to verify my identity again when I link an account?

No. You are already logged into your Wells Fargo account, so Wells Fargo knows who you are. For external accounts, verification confirms you own that account, not your identity — Wells Fargo does this through microdeposits or instant verification, not through a separate identity check.

Can I unlink an account after I add it?

Yes. Go to your account settings or linked accounts section in Wells Fargo online banking and select the option to remove or unlink the account. The account itself is not affected — it remains open at your other bank, and you can link it again later if you want.