Welcome to QuickBooks Community, info1178.
Tax collected at Source or TCS is calculated based from the Sales value or (Scrap Value + GST). In QuickBooks Online (QBO), TCS is not automatically calculated. Instead, you can add a line item for its calculation where you can manually enter the calculated TCS deduction on the bill.
To create an item, please follow the steps below:
I've got you this article for additional information about adding product and service items to QBO: Add product and service items to QuickBooks Online.
Once done, you can now apply the TCS deduction item on your Bill:
While the option for automatic calculation of TCS deduction on bills in not yet available, I encourage you to visit out QuickBooks Blog. Updates and latest feature will be posted and shared there.
If you have other questions, just let me know. I'm always happy to assist you further. Have a great day ahead.
Hi there, info1178.
Thank you for coming back here to the QuickBooks Community. I appreciate you for providing a screenshot about the issue so I can provide further details.
Since the TCS is manually entered in QuickBooks as a line item, this will not affect the total GST Calculations. This is because the TCS will post right away on what account you've selected when you record the Purchase bill.
While TCS is currently not supported with QuickBooks for the deduction, I suggest consulting an accountant. They can provide you other alternative ways on how to enter this TCS in the system. And, how to adjust this in QuickBooks once you get this amount claim while paying GST.
Please check this article to see different information about QuickBooks for GST and how this affects for QuickBooks users: How GST impacts QuickBooks users.
Please know that you're always welcome to post if you have any other concerns. Wishing you and your business continued success.