Why can i only add 2 of my 4 TD bank accounts (2 debit and 2 visa)

Let us help you connect all your bank accounts in QuickBooks Online (QBO), info2148.

If you are trying to set up a bank account with multiple associated cards, we'll need to create a parent account. Then set up each individual card underneath it as a subaccount. Parent accounts are shown on the left side of the table, with each corresponding subaccount indented below it in the Chart of Accounts.

Should there be other accounts required for specific transactions like payments, you may need to add one or more subaccounts. To see transactions related to a particular subaccount, generate a report for it. To view all transactions related to both the parent account and its subaccounts, generate a report from the parent account level.

Before connecting to online banking, we need to verify how your bank sends the downloaded transactions. If the transactions download to one account, we'll need to connect only the parent account. If the transactions download to the individual accounts, please connect the subaccounts. To learn more about this one, check out this article: Set up a bank or credit card subaccount in QuickBooks Online. 

Here's how to connect your bank account:

1. Go to Transactions and select Bank Transactions.
2. If this is the first bank account you’ve set up, select Connect account. If you already created one, choose Link account.
3. Search for your bank. You can connect with most banks, even small credit unions. 
4. Sign into your bank by entering your banking username and password. Then tap Continue.
5. Follow the on-screen steps to connect. Your bank may require additional security checks and it may take a few minutes to connect.
6. Choose any accounts you want to connect like, your savings, chequing, or credit card. Then choose the matching account type from your chart of accounts in QuickBooks.
7. If you don’t see the correct account type, from the dropdown ▼, click Add new.
8. From the Account Type ▼ dropdown, choose Bank.
9. From Detail Type ▼ dropdown, select Savings or Chequing.
10. Give the account a name, then press Save and Close. 

You can refer to this article about connecting your bank accounts: Connect bank and credit card accounts to QuickBooks Online.

Moreover, you can visit this article to help you import bank statements to help you reconcile an account: Get bank statements directly from your bank when you reconcile in QuickBooks Online.

The Community always has your back if you have any other questions about connecting your financial institutions or any QuickBooks-related concerns. This thread is also open for handling your bank and financial entries, info2148.