Yes, you can create GST-compliant invoices on Open. If your business has registered a GSTIN, then you can share GST-compliant invoices with your customers.
1. Navigate to the 'Setting Icon' from the top right corner
2. Click on ‘Settings’.
3. Navigate to 'Company Details' and click on ‘Tax & Compliance’
4. Add GSTIN by clicking on 'Edit'
5. Click on 'Update'