I want to provide discounts at invoice level. Can I?

No, you can’t. According to the VAT Law, discounts in invoices can only be given at item level. To set this up in Zoho Books:

• Click the Gear icon on the top right corner of the page.
• Select Preferences.
• Under General, scroll down to Do you give discounts?.
• Select the option At line item level.
• Click Save.

If you are getting an error while saving, uncheck the box Shipping Charges and Adjustments.