Bill a client on a schedule, either with a simple template or a retainer that also schedules the work.
The template form has no tax-rate field, so its lines are saved at 0% tax. If the invoice must carry GST, use a retainer instead (its tax rate defaults to 18% when your firm has a GSTIN).
Invoicing
Create, send, and track GST-compliant invoices.
Client Engagements
Manage service engagements from proposal to delivery and sign-off.
Overdue Reminders and Dunning
How automatic payment reminders escalate, how to pause them and how to record a promise to pay.
GST Basics in Oris Work
How GST is split into CGST and SGST or IGST, and the settings that drive it.