You link a checking account to TD Ameritrade through the Account Management section, using either your bank's routing number and account number or by letting Ameritrade verify two small deposits your bank sends

TD Ameritrade calls this process "linking" or "adding a bank account," and it's how you move money between your checking account and your brokerage account. The connection works in both directions: you can transfer cash from your bank into Ameritrade to buy investments, or move money from Ameritrade back to your bank to withdraw it.

The actual linking happens inside your Ameritrade account settings, not through your bank. You provide your bank's details to Ameritrade, and Ameritrade contacts your bank to confirm you own the account. This takes between one and three business days for the connection to become active, depending on which verification method you choose.

Key Takeaways

  • You add a bank account through the Account Management or Transfers section of your Ameritrade account, not through your bank's website.
  • Ameritrade offers two ways to verify the account is yours: when ready verification using your online banking login, or the slower method where Ameritrade deposits two small amounts and you report the totals back.
  • Once verified, transfers from your bank to Ameritrade usually settle within one business day, while transfers from Ameritrade to your bank take two to three business days.
  • You can link multiple checking accounts to a single Ameritrade account, but each one must be verified separately.

Finding the linking section in your Ameritrade account

Log into your TD Ameritrade account on the website or mobile app. On the website, look for "Account" or "My Account" in the top navigation, then select "Account Settings" or "Linked Bank Accounts." On the mobile app, tap the menu icon (three horizontal lines) and look for "Account" or "Settings," then "Linked Bank Accounts" or "Bank Accounts."

Once you're in that section, you'll see a button labeled "Link Bank Account" or "Add Bank Account." Click or tap it. Ameritrade will ask whether you want to add a new account or if you're already a customer at that bank. Select "Add New Bank Account" if this is the first time you're linking that particular checking account.

The when ready verification method using your bank login

Ameritrade's fastest route is to verify your account using your online banking credentials. When you click "Link Bank Account," Ameritrade will ask your bank name. Type it in, and Ameritrade will redirect you to your bank's login page (or a page that looks like it). You log in with your regular online banking username and password.

Your bank then shows Ameritrade a list of your accounts. You select the checking account you want to link. Ameritrade receives confirmation that you own that account and completes the link when ready—usually within minutes. You're then returned to your Ameritrade account, and the bank account shows as "verified" or "active."

This method works with most major banks, including Chase, Bank of America, Wells Fargo, Citibank, and regional banks. If your bank doesn't appear in Ameritrade's list, you'll need to use the manual verification method instead.

The manual verification method with two test deposits

If your bank isn't in Ameritrade's when ready verification system, or if you prefer not to share your online banking login, you can verify manually. You'll enter your bank's routing number and your checking account number directly into Ameritrade. You can find both on a check, or by logging into your bank's website and looking at your account details.

After you enter these numbers, Ameritrade will send two small deposits to your checking account—usually between $0.01 and $0.99 each. These deposits arrive within one to two business days. The deposit descriptions will include a code, like "AMTD 12AB" or similar.

Once you see both deposits in your checking account, you return to Ameritrade and enter the two amounts. Ameritrade verifies that you received them and completes the link. This entire process takes three to five business days from start to finish.

What information you need before you start

If you're using when ready verification, you only need your online banking login and password. Make sure you can access your bank's website or app before you begin, because Ameritrade will redirect you there during the process.

If you're using manual verification, gather a check or your bank's account details page. You'll need the nine-digit routing number (the first set of numbers on the left side of a check) and your full checking account number (the second set of numbers on a check, usually 10 to 12 digits). Some banks also ask for the account type, which is straightforward "checking."

How long transfers take once the account is linked

After your bank account is verified, you can transfer money between your checking account and Ameritrade. The direction matters for timing. A transfer from your bank to Ameritrade (called an ACH transfer or "pull") usually settles the next business day. If you initiate the transfer on a Monday morning, the money typically arrives in your Ameritrade account by Tuesday.

A transfer from Ameritrade back to your bank (called a "push") takes longer—usually two to three business days. If you request the withdrawal on Monday, expect the money in your checking account by Wednesday or Thursday. Transfers initiated on weekends or holidays don't start processing until the next business day.

The actual dollar amount you can transfer in a single transaction varies by bank and by Ameritrade's policies. Most banks allow transfers of $10,000 to $25,000 per day, though some allow more. Ameritrade may also set its own limits based on your account history.

Linking multiple checking accounts to one Ameritrade account

You can connect more than one checking account to your Ameritrade brokerage account. This is useful if you have accounts at different banks, or if you want to keep personal and business checking separate. Each account must be verified individually using the same process—either when ready verification or the two-deposit method.

When you initiate a transfer, Ameritrade will ask which linked bank account you want to transfer from or to. The account you select appears in a dropdown menu. If you have three checking accounts linked, you'll see all three options each time you transfer.

Troubleshooting a failed link

If when ready verification fails, the most common reason is that your bank isn't in Ameritrade's system, or your online banking login doesn't work the way Ameritrade expects. Try the manual verification method instead—it works with any bank.

If manual verification stalls, check that you entered the routing number and account number correctly. A single digit wrong will cause the verification to fail. Also confirm that your checking account is in your name and that you have online access to it. Some joint accounts or accounts held in a trust may not verify through this process; contact Ameritrade's support team if that's your situation.

If you've entered the two test deposit amounts and Ameritrade says they don't match, log back into your checking account and look at the exact amounts again. The deposits are small and straightforward to misread—a $0.23 deposit looks similar to a $0.32 deposit at a glance.

Frequently Asked Questions

Can I link a savings account instead of a checking account?

TD Ameritrade allows you to link savings accounts as well as checking accounts. The process is identical—you use either when ready verification or the manual method. Transfers work the same way and take the same amount of time. Some people link a savings account if they want to keep their brokerage transfers separate from their everyday checking account.

What if my bank account is in a different name than my Ameritrade account?

The name on your checking account must match the name on your Ameritrade account. If they don't match, the verification will fail. Contact Ameritrade's support team to discuss your situation; they may be able to help if the accounts are in your name but spelled differently, or if you've recently married and changed your name on one account but not the other.

Do I have to keep my bank account linked, or can I unlink it later?

You can unlink a bank account at any time through the same Account Settings or Linked Bank Accounts section where you added it. Look for a "Remove" or "Unlink" button next to the account name. Unlinking doesn't affect any transfers that are already in progress—those will complete normally. You can re-link the same account later if you need to.

Is it safe to give Ameritrade my online banking login?

Ameritrade uses a third-party service called Plaid to handle the when ready verification process. Your login is sent directly to your bank's website, not stored by Ameritrade. However, if you're uncomfortable sharing your login, you can always use the manual verification method with the routing number and account number instead.

Can I transfer money the same day I link my account?

No. Even if your account verifies when ready, you cannot transfer money until the verification is complete and the account shows as "active" or "verified" in your Ameritrade account. With when ready verification, this usually happens within minutes. With manual verification, you must wait for the two test deposits to arrive and be confirmed, which takes three to five business days.