Adding tags to transactions that are split is possible, seemahundal.

After making the split, open the transaction in your bank register and assign the tag from there. Here's how:

1. Go to the Accounting menu and select Chart of Accounts.
2. Look for the bank and click View register.
3. Go to the Tags section and type in the tag that you want to assign.
4. Click Save.

You can also go to the Categorized tab in the Banking screen. Just look for the transaction and click on it. Then, assign the tag in the Tags section. 

More details about this are discussed in these articles:

• Tag Transactions In QuickBooks Online
• What Are Tags And Why Should I Use Them?

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