As per Rule 47 of the CGST Rules, The tax invoice referred in Rule 46 in case of supply of services has to be issued within 30 days date of supply of service.
GST Tip – 173
In the revised Invoice Rules, the time limit for issue of tax invoice is given as 30 days from the date of supply of service and in the case of an insurer or a banking company or a financial institution, including a non-banking financial company, the time limit is 45 days from the supply of service.