How to enable discount

Thanks for checking out the Community space, kshitij-sinha-ci.

You can go to the Gear icon to turn on the Discount feature. This creates a Discounts given account in your Chart of Accounts to track any discounts you provide to your customers. I'll show you how:

1. Click the Gear icon.
2. Choose Account and Settings.
3. Select the Sales tab.
4. In the Sales form content section, click the Edit icon.
5. Turn on the Discount setting.
6. Hit Save and then Done.

Once done, you may now follow the steps in this link to learn how to add discount to your sales forms: Add a discount to an invoice or sales receipt in QuickBooks Online. 

Additionally, here's a reference that you can browse to help design the invoices that you send to your customers: Customize sales forms.

Feel welcome to reach out to me again with any concerns or questions you may have. I've got you covered.