I know a way to record the tip in QuickBooks, bushma.

To start, let's add an income account to track the amount. I'll guide you how.

1. Go to the Accounting menu and select Chart of Accounts.
2. Select New.
3. For Account Type, select Other Income.
4. For Detail Type, select Other Miscellaneous Income.
5. Enter a Name, like "Tip Revenue".
6. Click on Save and Close.

Then, we can now create a tip item

1. Go to the Gear icon and then select Products and Services.
2. Select New.
3. Choose Non-inventory.
4. Enter a Name, like "Tips."
5. For the Income account, select the account you created.
6. Select Save and close.

After that, record the extra money as a tip. Here's how:

1. Go to the + New menu and then select Invoice.
2. Choose the Customer.
3. In the Products/Services field, select the tip item you created.
4. Select Save. If your credits are set up to apply automatically, you're done. Otherwise, select Receive Payment
5. Choose the credit and then Save and close.

You can also add tips to the sales receipt. This ensures the amounts are properly tracked in QuickBooks.

I'm only a post away if you need more help in managing tips in QuickBooks.  It's always my pleasure to help you out again.